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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
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Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

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Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

easily strace all your apache processes

Terminal - easily strace all your apache processes
ps -C apache o pid= | sed 's/^/-p /' | xargs strace
2011-03-15 08:46:33
User: depesz
Functions: ps sed xargs
-1
easily strace all your apache processes

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives
ps auxw | grep sbin/apache | awk '{print"-p " $2}' | xargs strace
2011-03-14 21:45:22
User: px
Functions: awk grep ps xargs
7

This one-liner will use strace to attach to all of the currently running apache processes output and piped from the initial "ps auxw" command into some awk.

ps h --ppid $(cat /var/run/apache2.pid) | awk '{print"-p " $1}' | xargs sudo strace
2012-03-21 01:59:41
Functions: awk cat ps sudo xargs
3

Like the original version except it does not include the parent apache process or the grep process and adds "sudo" so it can be run by user.

ps auxw | grep sbin/apache | awk '{print"-p " $2}' | xargs strace -f
2013-02-19 19:14:57
User: msealand
Functions: awk grep ps strace xargs
1

This version also attaches to new processes forked by the parent apache process. That way you can trace all current and *future* apache processes.

ps auxw | grep -E 'sbin/(apache|httpd)' | awk '{print"-p " $2}' | xargs strace -F
2016-08-04 10:59:58
User: gormux
Functions: awk grep ps strace xargs
Tags: awk grep ps strace
0

Will open strace on all apache process, on systems using sbin/apache (debian) or sbin/httpd (redhat), and will follow threads newly created.

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