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commandlinefu.com is the place to record those command-line gems that you return to again and again.

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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.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Commands by TeacherTiger from sorted by
Terminal - Commands by TeacherTiger - 5 results
pushd .
2010-11-27 23:21:37
User: TeacherTiger

Save the current directory without having to leave it. When you do decide to leave the current directory, use popd to return to it.

watch -n1 -d !!
2009-11-24 21:01:14
User: TeacherTiger
Functions: watch

If you just executed some long command, like "ps -aefww | grep -i [m]yProcess", and if you don't want to retype it or cycle backwards in history and waste time quoting it, then you can use history substitution.

\ls -1 | xargs -l readlink
2009-11-23 19:28:03
User: TeacherTiger
Functions: xargs
Tags: readlink

For those who don't have the symlinks command, you can use readlink. This command is not straightforward because readlink is very picky. The backslash in front of 'ls' means not to use an alias (e.g. color escape codes from an aliased 'ls' could mess up readlink), and the -1 (one) means to print the entries separated by newlines. xargs -l (the letter L) means to process each input separated by newlines as separate commands.

find -amin +[n] -delete
2009-11-20 17:15:28
User: TeacherTiger
Functions: find

Deletes files older than "n" minutes ago. Note the plus sign before the n is important and means "greater than n". This is more precise than atime, since atime is specified in units of days. NOTE that you can use amin/atime, mmin/mtime, and cmin/ctime for access, modification, and change times, respectively. Also, using -delete is faster than piping to xargs, since no piping is needed.

alias gdbbt="gdb -q -n -ex bt -batch"
2009-11-10 22:56:59
User: TeacherTiger
Functions: alias
Tags: gdb

The pstack command prints a stack trace of running processes without needing to attach a debugger, but what about core files? The answer, of course, is to use this command. Usage: gdbbt program corefile