List files accessed by a command

strace -ff -e trace=file my_command 2>&1 | perl -ne 's/^[^"]+"(([^\\"]|\\[\\"nt])*)".*/$1/ && print'
Can be run as a script `ftrace` if my_command is substrituted with "$@" It is useful when running a command that fails and you have the feeling it is accessing a file you are not aware of.
Sample Output
$ strace -ff -e trace=file chmod 755 ~/bin/ftrace 2>&1 | perl -ne 's/^[^"]+"(([^\\"]|\\[\\"nt])*)".*/$1/ && print'
/bin/chmod
/etc/ld.so.nohwcap
/etc/ld.so.preload
/etc/ld.so.cache
/etc/ld.so.nohwcap
/lib/x86_64-linux-gnu/libc.so.6
/usr/lib/locale/locale-archive
/home/tange/bin/ftrace
/home/tange/bin/ftrace

17
2011-08-16 15:00:18

What Others Think

What about using | sed -n 's/^[^"]*"\([^"]*\)".*/\1/p' instead, to reduce the overhead of loading up the entire perl interpreter?
Mozai · 370 weeks and 5 days ago
Also add | sort | uniq
capncanuck · 369 weeks and 6 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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