unix - Use watch to copy new files in directory twice a second -

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i have folder (foo) want check twice second. if there new file in folder want copy second folder (foo2). want use watch , cp. using tcsh.

how this?

this trying:

touch lastchanged watch --interval=.5 'if [[ $(ls foo) ]] cp $; else echo "nothing new";fi

this seems work me. open better answers.

touch lastchecked watch --interval=.5 'if [[ $(find foo -newer lastchecked -ls -exec cp {} foo2 \; touch lastchecked; else echo "nothing new"; fi

watch checks twice second.

find looks files newer "lastchecked" file , copies files.

then touch lastchecked.

touching lastchecked allow cping when file has been updated.


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