find all open files by named process

lsof -c $processname | egrep 'w.+REG' | awk '{print $9}' | sort | uniq
lists all files that are opened by processess named $processname egrep 'w.+REG' is to filter out non file listings in lsof, awk to get the filenames, and sort | uniq to remove duplciation
Sample Output
# lsof  -c httpd | egrep 'w.+REG' | awk '{ print $9 }' | sort | uniq
/var/log/httpd/access_log.1
/var/log/httpd/deflate_log.1
/var/log/httpd/error_log.1
/var/log/httpd/ssl_access_log
/var/log/httpd/ssl_error_log.1
/var/log/httpd/ssl_request_log

1
2010-02-24 16:47:49

What Others Think

The egrep will filter out too much - probably just grepping for REG should do it.
zabuch · 451 weeks and 4 days ago
just grepping for REG picks up all the files pulled in via the linker and mmap'd in. was looking for all open fd's that are being updated when it was whipped up. guess i should have named it 'find all open files for writing by a named process' might be able to massage it a bit better via grep -v path\ dev, but thats nitpicky.
alustenberg · 451 weeks and 4 days ago
imo should have gotten a higher score. good job OP.
linuxrawkstar · 451 weeks and 2 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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