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JOE !!!JOE Name Syntax Description Usage Command Line Options Editing Tasks Environment variables Filenames The joerc file Acknowledgements ---- !!Name joe - Joe's Own Editor !!Syntax __joe [[global-options] [[ [[local-options] filename ]...__ __jstar [[global-options] [[ [[local-options] filename ]...__ __jmacs [[global-options] [[ [[local-options] filename ]...__ __rjoe [[global-options] [[ [[local-options] filename ]...__ __jpico [[global-options] [[ [[local-options] filename ]...__ !!Description JOE is a powerful ASCII-text screen editor. It has a JOE also emulates several other editors. JSTAR is a close immitation of !WordStar with many Although JOE is actually five different editors, it still requires only one executable, but one with five different names. The name of the editor with an JOE is free software; you can distribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation. I have no plans for turning JOE into a commercial or share-ware product. JOE is available over the Internet by anonymous FTP from __ftp.std.com__, file: __src/editors/joe*.tar.Z__. !!Usage To start the editor, type __joe__ followed by zero or more names of files you want to edit. Each file name may be preceeded by a local option setting (see the local options table which follows). Other global options, which apply to the editor as a whole, may also be placed on the command line (see the global options table which follows). If you are editing a new file, you can either give the name of the new file when you invoke the editor, or in the editor when you save the new file. A modified syntax for file names is provided to allow you to edit program output, standard input/output, or sections of files or devices. See the section __Filenames__ below for details. Once you are in the editor, you can type in text and use special control-character sequences to perform other editing tasks. To find out what the control-character sequences are, read the rest of this man page or type __^K H__ for help in the editor. Now for some obscure computer-lore: The __^__ means that you hold down the __Control__ key while pressing the following key (the same way the __Shift__ key works for uppercase letters). A number of control-key sequences are duplicated on other keys, so that you don't need to press the control key: __ESC__ will work in place of __^[[__, __Del__ will work in place of __^?__, __Backspace__ will work in place of __^H__, __Tab__ will work in place of __^I__, __Return__ or __Enter__ will work in place of __^M__ and __Linefeed__ will work in place of __^J__. Some keyboards may give you trouble with some control keys. __^___, __^^__ and __^@__ can usually be entered without pressing shift (I.E., try __^-__, __^6__ and __^2__). Other keyboards may reassign these to other keys. Try: __^.__, __^,__ and __^/__. __^SPACE__ can usually be used in place of __^@__. __^\__ and __^]__ are interpreted by many communication programs, including telnet and kermit. Usually you just hit the key twice to get it to pass through the communication program. Once you have typed __^K H__, the first help window appears at the top of the screen. You can continue to enter and edit text while the help window is on. To page through other topics, hit ^[[, and ^[[. (that is, ESC , and ESC .). Use __^K H__ to dismiss the help window. You can customize the keyboard layout, the help screens and a number of behavior defaults by copying JOE's initialization file (on Debian systems __/etc/joe/joerc__) to __.joerc__ in your home directory and then by modifying it. See the section __joerc__ below. To have JOE used as your default editor for e-mail and News, you need to set the __EDITOR__ and __VISUAL__ environment variables in your shell initialization file (__.cshrc__ or __.profile__) to refer to JOE (joe resides as __/usr/bin/joe__ on Debian systems). There are a number of other obscure invocation parameters which may have to be set, particularly if your terminal screen is not updating as you think it should. See the section __Environment variables__ below. !!Command Line Options The following global options may be specified on the command line: -asis Characters with codes above 127 will be sent to the terminal as-is, instead of as inverse of the corresponding character below 128. If this does not work, check your terminal server. -backpath path If this option is given, backup files will be stored in the specified directory instead of in each file's original directory. -baud nnn Set the baud rate for the purposes of terminal screen optimization. Joe inserts delays for baud rates below 19200, which bypasses tty buffering so that typeahead will interrupt the screen output. Scrolling commands will not be used for 38400 baud. This is useful for X-terms and other console ttys which really aren't going over a serial line. -beep Joe will beep on command errors and when the cursor goes past extremes. -columns nnn Sets the number of screen columns. -csmode Continued search mode: a search immediatly following a search will repeat the previous search instead of prompting for new string. This is useful for the the ^[[S and ^[[R commands and for when joe is trying to be emacs. -dopadding Joe usually assumes that there is some kind of flow control between it and the tty. If there isn't, this option will make joe output extra ^@s to the tty as specified by the termcap entry. The extra ^@s allow the terminal to catch up after long terminal commands. -exask This option makes ^KX verify the file name that it's about to write. -force This option makes sure that the last line of the file has a line-feed which it's saved. -help The editor will start with the help screen on if this option is given. -keepup Normally the column number and control-key prefix fields of the status lines are on a one second delay to reduce CPU consumption, but with this option they are updated after each key-stroke. -lightoff The block highlighting will go away after any block command if this option is given. -lines nnn Sets the number of screen lines. -marking Text between ^KB and the cursor is highlighted (use with -lightoff and a modified joerc file to have drop-anchor style block selection). -mid If this option is set and the cursor moves off the window, the window will be scrolled so that the cursor is in the center. This option is forced on slow terminals which don't have scrolling commands. -nobackups This option prevents backup files. -nonotice This option prevent the copyright notice from being displayed when the editor starts. -nosta This option eliminates the top-most status line. It's nice for when you only want to see your text on the screen or if you're using a vt52. -noxon Attempt to turn off ^S/^Q processing. This is useful for when joe is trying to be !WordStar or EMACS. -orphan When this option is active, extra files on the command line will be placed in orphaned buffers instead of in extra windows. This is useful for when joe is trying to be emacs. -pg nnn This specifies the number of lines to keep after !PgUp/!PgDn (^U/^V). If -1 is given, half the window is kept. -skiptop nnn Don't use the top nnn lines of the screen. Useful for when joe is used as a BBS editor. Each of these options may be specified in the joerc file as well. In addition, the NOXON, BAUD, LINES, COLUMNS and DOPADDING options may be specified with environment variables. The JOETERM environment variable may be set to override the regular TERM environment variable for specifying your terminal type. The following options may be specified before each filename on the command line: +nnn The cursor starts on the specified line. -crlf Joe uses CR-LF as the end of line sequence instead of just LF. This is for editing MS-DOS or VMS files. -wordwrap Joe wraps the previous word when you type past the right margin. -autoindent When you hit Return on an indented line, the indentation is duplicated onto the new line. -overwrite Typing overwrites existing characters instead of inserting before them. -lmargin nnn Sets the left margin. -rmargin nnn Sets the right margin. -tab nnn Sets the tab width. -indentc nnn Sets the indentation character for ^K, and ^K. (32 for SPACE, 9 for TAB). -istep nnn Sets the indentation step for ^K, and ^K.. -linums Line numbers are displayed before each line. -rdonly The file is read only. -keymap name Use an alternate section of the joerc file for the key sequence bindings. These options can also be specified in the joerc file. They can be set depending on the file-name extension. Programs (.c, .h or .p extension) usually have autoindent enabled. Wordwrap is enabled on other files, but rc files have it disabled. !!Editing Tasks __Basic Editing__ When you type characters into the editor, they are normally inserted into the file being edited (or appended to the file if the cursor is at the end of the file). This is the normal operating mode of the editor. If you want to replace some existing text, you have to delete the old text before or after you type in the replacement text. The __Backspace__ key can be used for deleting text: move the cursor to right after the text you want to delete and hit __Backspace__ a number of times. Hit the __Enter__ or __Return__ key to insert a line-break. For example, if the cursor was in the middle of a line and you hit __Return__, the line would be split into two lines with the cursor appearing at the beginning of the second line. Hit __Backspace__ at the beginning of a line to eliminate a line-break. Use the arrow keys to move around the file. If your keyboard doesn't have arrow keys (or if they don't work for some reason), use __^F__ to move forwards (right), __^B__ to move backwards (left), __^P__ to move to the previous line (up), and __^N__ to move to the next line (down). The right and left arrow keys simply move forwards or backwards one character at a time through the text: if you're at the beginning of a line and you press left-arrow, you will end up at the end of the previous line. The up and down arrow keys move forwards and backwards by enough characters so that the cursor appears in the same column that it was in on the original line. If you want to indent the text you enter, you can use the __TAB__ key. This inserts a special control character which makes the characters which follow it begin at the next TAB STOP. TAB STOPS normally occur every 8 columns, but this can be changed with the __^T D__ command. PASCAL and C programmers often set TAB STOPS on every 4 columns. If for some reason your terminal screen gets messed up (for example, if you receive a mail notice from biff), you can have the editor refresh the screen by hitting __^R__. There are many other keys for deleting text and moving around the file. For example, hit __^D__ to delete the character the cursor is on instead of deleting backwards like __Backspace__. __^D__ will also delete a line-break if the cursor is at the end of a line. Type __^Y__ to delete the entire line the cursor is on or __^J__ to delete just from the cursor to the end of the line. Hit __^A__ to move the cursor to the beginning of the line it's on. Hit __^E__ to move the cursor to the end of the line. Hit __^U__ or __^V__ for scrolling the cursor up or down 1/2 a screen's worth. __^K U__ or __^K V__ to move the cursor to the beginning or the end of the file. Look at the help screens in the editor to find even more delete and movement commands. If you make a mistake, you can hit __^___ to __^-__ to get __^___, but on some you might have to hold both the __Shift__ and __Control__ keys down at the same time to get it. If you __^^__ (type this with just __^6__ on most keyboards). If you were editing in one place within the file, and you then temporarily had to look or edit some other place within the file, you can get back to the original place by hitting __^K -__. This command actually returns you to the last place you made a change in the file. You can step through a history of places with __^K -__ and __^K =__, in the same way you can step through the history of changes with the __ When you are done editing the file, hit __^K X__ to exit the editor. You will be prompted for a file name if you hadn't already named the file you were editing. When you edit a file, you actually edit only a copy of the file. So if you decide that you don't want the changes you made to a file during a particular edit session, you can hit __^C__ to exit the editor without saving them. If you edit a file and save the changes, a __Word wrap and formatting__ If you type past the right edge of the screen in a C language or PASCAL file, the screen will scroll to the right to follow the cursor. If you type past the right edge of the screen in a normal file (one whose name doesn't end in .c, .h or .p), JOE will automatically wrap the last word onto the next line so that you don't have to hit __Return__. This is called word-wrap mode. Word-wrap can be turned on or off with the __^T W__ command. JOE's initialization file is usually set up so that this mode is automatically turned on for all non-program files. See the section below on the __joerc__ file to change this and other defaults. Aside for Word-wrap mode, JOE does not automatically keep paragraphs formatted like some word-processors. Instead, if you need a paragraph to be reformatted, hit __^K J__. This command __ The margins which JOE uses for paragraph formatting and word-wrap can be set with the __^T L__ and __^T R__ commands. If the left margin is set to a value other than 1, then when you start typing at the beginning of a line, the cursor will immediately jump to the left margin. If you want to center a line within the margins, use the __^K A__ command. __Over-type mode__ Sometimes it's tiresome to have to delete old text before or after you insert new text. This happens, for example, when you are changing a table and you want to maintain the column position of the right side of the table. When this occurs, you can put the editor in over-type mode with __^T T__. When the editor is in this mode, the characters you type in replace existing characters, in the way an idealized typewriter would. Also, __Backspace__ simply moves left instead of deleting the character to the left, when it's not at the end or beginning of a line. Over-type mode is not the natural way of dealing with text electronically, so you should go back to insert-mode as soon as possible by typing __^T T__ again. If you need to insert while you're in over-type mode, hit __^@__. This inserts a single SPACE into the text. __Control and Meta characters__ Each character is represented by a number. For example, the number for 'A' is 65 and the number for '1' is 49. All of the characters which you normally see have numbers in the range of 32 - 126 (this particular arbitrary assignment between characters and numbers is called the ASCII character set). The numbers outside of this range, from 0 to 255, aren't usually displayed, but sometimes have other special meanings. The number 10, for example, is used for the line-breaks. You can enter these special, non-displayed __control characters__ by first hitting __`__ and then hitting a character in the range __@ A B C ... X Y Z [[ ^ ] \ ___ to get the number 0 - 31, and ? to get 127. For example, if you hit __` J__, you'll insert a line-break character, or if you hit __` I__, you'll insert a TAB character (which does the same thing the TAB key does). A useful control character to enter is 12 (__` L__), which causes most printers to advance to the top of the page. You'll notice that JOE displays this character as an underlined L. You can enter the characters above 127, the __meta characters__, by first hitting __^\__. This adds 128 to the next (possibly control) character entered. JOE displays characters above 128 in inverse-video. Some foreign languages, which have more letters than English, use the meta characters for the rest of their alphabet. You have to put the editor in __ASIS__ mode (described later) to have these passed untranslated to the terminal. __Prompts__ If you hit __TAB__ at any file name prompt, joe will attempt to complete the name you entered as much as possible. If it couldn't complete the entire name, because there are more than one possible completions, joe beeps. If you hit __TAB__ again, joe list the completions. You can use the arrow keys to move around this directory menu and press RETURN or SPACE to select an item. If you press the first letter of one of the directory entries, it will be selected, or if more than one entry has the same first letter, the cursor will jump between those entries. If you select a subdirectory or .., the directory name is appended to the prompt and the new directory is loaded into the menu. You can hit Backspace to go back to the previous directory. Most prompts record a history of the responses you give them. You can hit up and down arrow to step through these histories. Prompts are actually single line windows with no status line, so you can use any editing command that you normally use on text within the prompts. The prompt history is actually just other lines of the same ^K F__ command if you want. Since prompts are windows, you can also switch out of them with __^K P__ and __^K N__. __Where am I?__ Hit __^K SPACE__ to have JOE report the line number, column number, and byte number on the last line of the screen. The number associated with the character the cursor is on (its ASCII code) is also shown. You can have the line number and/or column number always displayed on the status line by setting placing the appropriate escape sequences in the status line setup strings. Edit the joerc file for details. __File operations__ You can hit __^K D__ to save the current file (possibly under a different name from what the file was called originally). After the file is saved, you can hit __^K E__ to edit a different file. If you want to save only a selected section of the file, see the section on __Blocks__ below. If you want to include another file in the file you're editing, use __^K R__ to insert it. __Temporarily suspending the editor__ If you need to temporarily stop the editor and go back to the shell, hit __^K Z__. You might want to do this to stop whatever you're editing and answer an e-mail message or read this man page, for example. You have to type __fg__ or __exit__ (you'll be told which when you hit __^K Z__) to return to the editor. __Searching for text__ Hit __^K F__ to have the editor search forwards or backwards for a text fragment (__string__) for you. You will be prompted for the text to search for. After you hit __Return__, you are prompted to enter options. You can just hit __Return__ again to have the editor immediately search forwards for the text, or you can enter one or more of these options: __b__ Search backwards instead of forwards. __i__ Treat uppercase and lower case letters as the same when searching. Normally uppercase and lowercase letters are considered to be different. __nnn__ (where __nnn__ is a number) If you enter a number, JOE searches for the Nth occurrence of the text. This is useful for going to specific places in files structured in some regular manner. __r__ Replace text. If you enter the __r__ option, then you will be further prompted for replacement text. Each time the editor finds the search text, you will be prompted as to whether you want to replace the found search text with the replacement text. You hit: __y__ to replace the text and then find the next occurrence, __n__ to not replace this text, but to then find the next occurrence, __r__ to replace all of the remaining occurrences of the search text in the remainder of the file without asking for confirmation (subject to the __nnn__ option above), or __^C__ to stop searching and replacing. You can hit __^L__ to repeat the previous search. __Regular Expressions__ A number of special character sequences may be entered as search text: __*__ This finds zero or more characters. For example, if you give __A*B__ as the search text, JOE will try to find an A followed by any number of characters and then a B. __?__ This finds exactly one character. For example, if you give __A?B__ as the search text, JOE will find AXB, but not AB or AXXB. __^ $__ These match the beginning and end of a line. For example, if you give __^test$__, then JOE with find __test__ on a line by itself. ____ These match the beginning and end of a word. For example, if you give ____, then joe will find whole words which have the sub-string __is__ within them. __[[...]__ This matches any single character which appears within the brackets. For example, if __[[Tt]his__ is entered as the search string, then JOE finds both __This__ and __this__. Ranges of characters can be entered within the brackets. For example, __[[A-Z]__ finds any uppercase letter. If the first character given in the brackets is __^__, then JOE tries to find any character not given in the the brackets. __c__ This works like __*__, but matches a balanced C-language expression. For example, if you search for __malloc(c)__, then JOE will find all function calls to __malloc__, even if there was a __)__ within the parenthesis. __+__ This finds zero or more of the character which immediately follows the __+__. For example, if you give __[[ ]+[[ ]__, where the characters within the brackets are both SPACE and TAB, then JOE will find whitespace. __\__ Matches a single . __n__ This finds the special end-of-line or line-break character. A number of special character sequences may also be given in the replacement string: ____ This gets replaced by the text which matched the search string. For example, if the search string was ____, which matches words, and you give ____, then joe will put quote marks around words. __0 - 9__ These get replaced with the text which matched the Nth __*__, __?__, __+__, __c__, __+__, or __[[...]__ in the search string. __\__ Use this if you need to put a __\__ in the replacement string. __n__ Use this if you need to put a line-break in the replacement string. Some examples: Suppose you have a list of addresses, each on a separate line, which starts with Address: S. Holmes, 221b Baker St., London, England If you wanted to rearrange the list, to get the country first, then the city, then the person's name, and then the address, you could do this: Type __^K F__ to start the search, and type: __Address:*,*,*,*$__ to match r__ to replace the string, and then type: __Address:3,2,0,1__ To shuffle the information the way you want it. After hitting return, the search would begin, and the sample line would be changed to: Address: England, London, S. Holmes, 221b Baker St. __Blocks__ If you want to move, copy, save or delete a specific section of text, you can do it with highlighted blocks. First, move the cursor to the start of the section of text you want to work on, and press __^K B__. Then move the cursor to the character just after the end of the text you want to affect and press __^K K__. The text between the __^K B__ and __^K K__ should become highlighted. Now you can move your cursor to someplace else in your document and press __^K M__ to move the highlighted text there. You can press __^K C__ to make a copy of the highlighted text and insert it to where the cursor is positioned. __^K Y__ to deletes the highlighted text. __^K W__, writes the highlighted text to a file. A very useful command is __^K /__, which filters a block of text through a unix command. For example, if you select a list of words with __^K B__ and __^K K__, and then type __^K / sort__, the list of words will be sorted. Another useful unix command for __^K /__, is __tr__. If you type __^K / tr a-z A-Z__, then all of the letters in the highlighted block will be converted to uppercase. After you are finished with some block operations, you can just leave the highlighting on if you don't mind it (of course, if you accidently hit __^K Y__ without noticing...). If it really bothers you, however, just hit __^K B ^K K__, to turn the highlighting off. __Indenting program blocks__ Auto-indent mode toggled with the __^T I__ command. The __joerc__ is normally set up so that files with names ending with .p, .c or .h have auto-indent mode enabled. When auto-indent mode is enabled and you hit __Return__, the cursor will be placed in the same column that the first non-SPACE/TAB character was in on the original line. You can use the __^K ,__ and __^K .__ commands to shift a block of text to the left or right. If no highlighting is set when you give these commands, the program block the cursor is located in will be selected, and will be moved by subsequent __^K ,__ and __^K .__ commands. The number of columns these commands shift by can be set through a __^T__ option. __Windows__ You can edit more than one file at the same time or edit two or more different places of the same file. To do this, hit __^K O__, to split the screen into two windows. Use __^K P__ or __^K N__ to move the cursor into the top window or the lower window. Use __^K E__ to edit a new file in one of the windows. A window will go away when you save the file with __^K X__ or abort the file with __^C__. If you abort a file which exists in two windows, one of the window goes away, not the file. You can hit __^K O__ within a window to create even more windows. If you have too many windows on the screen, but you don't want to eliminate them, you can hit __^K I__. This will show only the window the cursor is in, or if there was only one window on the screen to begin with, try to fit all hidden windows on the screen. If there are more windows than can fit on the screen, you can hit __^K N__ on the bottom-most window or __^K P__ on the top-most window to get to them. If you gave more than one file name to JOE on the command line, each file will be placed in a different window. You can change the height of the windows with the __^K G__ and __^K T__ commands. __Keyboard macros__ Macros allow you to record a series of keystrokes and replay them with the press of two keys. This is useful to automate repetitive tasks. To start a macro recording, hit __^K [[__ followed by a number from 0 to 9. The status line will display (Macro n recording...). Now, type in the series of keystrokes that you want to be able to repeat. The commands you type will have their usual effect. Hit __^K ]__ to stop recording the macro. Hit __^K__ followed by the number you recorded the macro in to execute one iteration of the key-strokes. For example, if you want to put __^K [[ ^A **__ __^K ]__ Which starts the macro recording, moves the cursor to the beginning of the line, inserts If you find that the macro you are recording itself has a repeated set of key-strokes in it, you can record a macro within the macro, as long as you use a different macro number. Also you can execute previously recorded macros from within new macros. __Repeat__ You can use the repeat command, __^K \__, to repeat a macro, or any other edit command or even a normal character, a specified number of times. Hit __^K \__, type in the number of times you want the command repeated and press __Return__. The next edit command you now give will be repeated that many times. For example, to delete the next 20 lines of text, type: __^K 20____^Y__ __Rectangle mode__ Type __^T X__ to have __^K B__ and __^K K__ select rectangular blocks instead of stream-of-text blocks. This mode is useful for moving, copying, deleting or saving columns of text. You can also filter columns of text with the __^K /__ command- if you want to sort a column, for example. The insert file command, __^K R__ is also effected. When rectangle mode is selected, over-type mode is also useful (__^T T__). When over-type mode is selected, rectangles will replace existing text instead of getting inserted before it. Also the delete block command (__^K Y__) will clear the selected rectangle with SPACEs and TABs instead of deleting it. Over-type mode is especially useful for the filter block command (__^K /__), since it will maintain the original width of the selected column. __Tag search__ If you are editing a large C program with many source files, you can use the __ctags__ program to generate a __tags__ file. This file contains a list of program symbols and the files and positions where the symbols are defined. The __^K ;__ command can be used to lookup a symbol (functions, defined constants, etc.), load the file where the symbol is defined into the current window and position the cursor to where the symbol is defined. __^K ;__ prompts you for the symbol you want, but uses the symbol the cursor was on as a default. Since __^K ;__ loads the definition file into the current window, you probably want to split the window first with __^K O__, to have both the original file and the definition file loaded. __Shell windows__ Hit __^K '__ to run a command shell in one of JOE's windows. When the cursor is at the end of a shell window (use __^K V__ if it's not), whatever you type is passed to the shell instead of the window. Any output from the shell or from commands executed in the shell is appended to the shell window (the cursor will follow this output if it's at the end of the shell window). This command is useful for recording the results of shell commands- for example the output of __make__, the result of __grep__ping a set of files for a string, or directory listings from __FTP__ sessions. Besides typeable characters, the keys ^C, Backspace, DEL, Return and ^D are passed to the shell. Type the shell __exit__ command to stop recording shell output. If you press __^C__ in a shell window, when the cursor is not at the end of the window, the shell is __kill__ed. !!Environment variables For JOE to operate correctly, a number of other environment settings must be correct. The throughput (baud rate) of the connection between the computer and your terminal must be set correctly for JOE to update the screen smoothly and allow typeahead to defer the screen update. Use the __stty nnn__ command to set this. You want to set it as close as possible to actual throughput of the connection. For example, if you are connected via a 1200 baud modem, you want to use this value for __stty__. If you are connected via 14.4k modem, but the terminal server you are connected to connects to the computer a 9600 baud, you want to set your speed as 9600 baud. The special baud rate of 38400 or __extb__ is used to indicate that you have a very-high speed connection, such as a memory mapped console or an X-window terminal emulator. If you can't use __stty__ to set the actual throughput (perhaps because of a modem communicating with the computer at a different rate than it's communicating over the phone line), you can put a numeric value in the __BAUD__ environment variable instead (use __setenv BAUD 9600__ for csh or __BAUD=9600; export BAUD__ for sh). The __TERM__ environment variable must be set to the type of terminal you're using. If the size (number of lines/columns) of your terminal is different from what is reported in the TERMCAP or TERMINFO entry, you can set this with the __stty rows nn cols nn__ command, or by setting the __LINES__ and __COLUMNS__ environment variables. JOE normally expects that flow control between the computer and your terminal to use ^S/^Q handshaking (I.E., if the computer is sending characters too fast for your terminal, your terminal sends ^S to stop the output and ^Q to restart it). If the flow control uses out-of-band or hardware handshaking or if your terminal is fast enough to always keep up with the computer output and you wish to map ^S/^Q to edit commands, you can set the environment variable __NOXON__ to have JOE attempt to turn off ^S/^Q handshaking. If the connection between the computer and your terminal uses no handshaking and your terminal is not fast enough to keep up with the output of the computer, you can set the environment variable __DOPADDING__ to have __JOE__ slow down the output by interspersing PAD characters between the terminal screen update sequences. !!Filenames Wherever JOE expects you to enter a file name, whether on the command line or in prompts within the editor, you may also type: __!command__ Read or write data to or from a shell command. For example, use __joe '!ls'__ to get a copy of your directory listing to edit or from within the editor use __^K D !mail jhallen@world.std.com__ to send the file being edited to me. ____ Use this to have JOE append the edited text to the end of the file __filename,START,SIZE__ Use this to access a fixed section of a file or device. __START__ and __SIZE__ may be entered in decimal (ex.: 123) octal (ex.: 0777) or hexadecimal (ex.: 0xFF). For example, use __joe /dev/fd0,508,2__ to edit bytes 508 and 509 of the first floppy drive in Linux. __-__ Use this to get input from the standard input or to write output to the standard output. For example, you can put joe in a pipe of commands: __quota -v | joe - | mail root__, if you want to complain about your low quota. !!The joerc file __^T__ options, the help screens and the key-sequence to editor command bindings are all defined in JOE's initialization file. If you make a copy of this file (which resides in __/etc/joe/joerc__) to __$HOME/.joerc__, you can customize these setting to your liking. The syntax of the initialization file should be fairly obvious and there are further instruction in it. !!Acknowledgements JOE was writen by Joseph H. Allen. If you have bug reports or questions, e-mail them to jhallen@world.std.com. Larry Foard (entropy@world.std.com) and Gary Gray (ggray@world.std.com) also helped with the creation of JOE. ----
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