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commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Create a mirror of a local folder, on a remote server
Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

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

grep (or anything else) many files with multiprocessor power
xargs -P N spawns up to N worker processes. -n 40 means each grep command gets up to 40 file names each on the command line.

Google text-to-speech in mp3 format

Recursively remove all empty directories

Find the package that installed a command

find established tcp connections without using netstat!!
Fast and easy way to find all established tcp connections without using the netstat command.

Quickly find a count of how many times invalid users have attempted to access your system


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