Commands for the wicked (110)

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Tracklist reaplace backspace to '-'
Requires perl 5.14 or greater

Live filter a log file using grep and show x# of lines above and below

Recompress all text files in a subdirectory with lzma
This will deal nicely with filenames containing newlines and will run one lzma process per CPU core. It requires GNU Parallel http://www.youtube.com/watch?v=OpaiGYxkSuQ

My PS1
My PS1

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Restart command if it dies.
works well in crontab.

shush MOTD
I'm annoyed by the boilerplate "don't login unless you are supposed messages in our environment" - this shuts them up.

Test file system type before further commands execution
Exclude 400 client hosts with NFS auto-mounted home directories. Easily modified for inclusion in your scripts.

backup all your commandlinefu.com favourites to a plaintext file
Usage: clfavs username password num_favourite_commands file_in_which_to_backup

Recompress all .gz files in current directory using bzip2 running 1 job per CPU core in parallel


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