List all files modified by a command

touch .tardis; the command ; find . -newer .tardis; rm .tardis;
This lists all files modified after calling some command using a temporal anchor.

1
By: BeniBela
2015-10-15 19:18:54

1 Alternatives + Submit Alt

  • Often you run a command, but afterwards you're not quite sure what it did. By adding this prefix/suffix around [COMMAND], you can list any files that were modified. . Take a nanosecond timestamp: YYYY-MM-DD HH:MM:SS.NNNNNNNNN date "+%F %T.%N" . Find any files that have been modified since that timestamp: find . -newermt "$D" . This command currently only searches below the current directory. If you want to look elsewhere change the find parameter, e.g. find /var/log . -newermt "$D" Show Sample Output


    2
    D="$(date "+%F %T.%N")"; [COMMAND]; find . -newermt "$D"
    flatcap · 2015-10-15 21:09:54 2

What Others Think

It's a great idea, but creating and deleting files is a bit messy.
flatcap · 153 weeks ago
Actually, it turns out the best way is to swap the order of the calls to the command ; find . -newer .tardis; touch .tardis; That way, if any of the commands fails, you can rerun everything, and in the end you get the files changed by any rerun
BeniBela · 151 weeks and 3 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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