CODEWITHSUNDEEP
bashshellio-redirectionxargs
Patryk
Patryk

Reputation: 24130

Xargs stdout to file redirection appending file indefinitely

I have a problem with redirecting output from xargs namely I do something like: 

find . -mmin -10 | xargs grep  mypattern > greping

This will keep writing to file indefinitely (I have waited until file reached around 25GB ) but when I change it to add pipe to grep at the end I will get proper results ( around 25 kB file ): 

find . -mmin -10 | xargs grep  mypattern | grep 2013-07-11 > greping

What am I missing here and why does xargs in first code snippet keep writing to file ?

Bash version GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu)

Upvotes: 0

Views: 1436

Answers (1)

anishsane
anishsane

Reputation: 20980

Change redirected file from >greping to >../greping or >/tmp/greping.

Basically, output file should not be in current directory or any of its subdirectory.

Or try:

find . -mmin -10 | grep -Fx -v './greping' | xargs grep  mypattern > greping

Upvotes: 3

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