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WATCH !!!WATCH NAME SYNOPSIS DESCRIPTION NOTE EXAMPLES BUGS AUTHORS ---- !!NAME watch - execute a program periodically, showing output fullscreen !!SYNOPSIS __watch__ ''[[-dhv] [[-n '' !!DESCRIPTION __watch__ runs ''command'' repeatedly, displaying its output (the first screenfull). This allows you to watch the program output change over time. By default, the program is run every 2 seconds; use ''-n'' or ''--interval'' to specify a different interval. The ''-d'' or ''--differences'' flag will highlight the differences between successive updates. The ''--cumulative'' option makes highlighting '' __watch__ will run until interrupted. !!NOTE Note that ''command'' is given to '' Note that POSIX option processing is used (i.e., option processing stops at the first non-option argument). This means that flags after ''command'' don't get interpreted by __watch__ itself. !!EXAMPLES To watch for mail, you might do watch -n 60 from To watch the contents of a directory change, you could use watch -d ls -l If you're only interested in files owned by user joe, you might use watch -d 'ls -l | fgrep joe' To see the effects of quoting, try these out watch echo $$ watch echo '$$' watch echo You can watch for your administrator to install the latest kernel with watch uname -r (Just kidding.) !!BUGS Upon terminal resize, the screen will not be correctly repainted until the next scheduled update. All ''--differences'' highlighting is lost on that update as well. Non-printing characters are stripped from program output. Use !!AUTHORS The original __watch__ was written by Tony Rems __ ----
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