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Uses inotifywait from inotify-tools ( http://wiki.github.com/rvoicilas/inotify-tools/ ), that is compatible only with linux.
Usefull when you work with files that have to be compiled.. latex, haml, c..
There is 1 alternative - vote for the best!
This is useful if you'd like to see the output of a script while you edit it. Each time you save the file the command is executed. I thought for sure something like this already exists - and it probably does. I'm on an older system and tend to be missing some useful things.
ontouchdo yourscript 'clear; yourscript somefiletoparse'
Edit yourscript in a separate window and see new results each time you save.
ontouchdo crufty.html 'clear; xmllint --noout crufty.html 2>&1 | head'
Keep editing krufty.html until the xmllint window is empty.
Note: Mac/bsd users should use stat -f%m. If you don't have stat, you can use perl -e '$f=shift; @s=stat($f); print "$s\n";' $1
Listens for events in the directory. Each created file is displayed on stdout. Then each fileline is read by the loop and a command is run.
This can be used to force permissions in a directory, as an alternative for umask.
runonchange /etc/nginx nginx -t
Ignores vim temp files. Depends on 'inotify-tools' for monitoring of file changes. Alternative to tools like 'entr', 'watchr'.
If you can do better, submit your command here.
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