Differences between version 8 and predecessor to the previous major change of HereStrings.
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| Newer page: | version 8 | Last edited on Monday, December 11, 2006 1:57:45 am | by BenStaz | Revert |
| Older page: | version 6 | Last edited on Sunday, December 10, 2006 8:24:21 am | by GreigMcGill | Revert |
@@ -1,6 +1,6 @@
!Here Strings
-A variant of here documents,
the format is:
+A variant of [Here Documents|HereDocuments]
the format is:
*command <<< "string"
A here string uses a form of I/O redirection to feed a command to an *interactive* program or a command, such as ftp, cat, ex or read. This can be extremely handy. So basically those apps you run that allow user input can be automatically fed strings rather than you typing them!
@@ -14,4 +14,10 @@
*echo $foo $bar $moo
and hopefully the value of the three variables will be displayed for you.
+
+!Read from a variable
+Make sure the variable is surrounded by double quotes!
+
+*string="this:is:a:string"; IFS=: ; read foo bar moo cow <<< "$string"
+*echo $foo $bar $moo $cow
