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checkfor: have the shell check anything you're waiting for.
'while : ; do' is an infinite loop
'$*' executes the command passed in
'sleep 5' - change for your tastes, sleep for 5 seconds
bash, ksh, likely sh, maybe zsh
Ctrl-c to break the loop
There are 3 alternatives - vote for the best!
Every seconds do
If you can do better, submit your command here.
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