Commands tagged optimize (7)

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use vi key bindings at the command line

Poor man's nmap for a class C network from rfc1918
What do you do when nmap is not available and you want to see the hosts responding to an icmp echo request ? This one-liner will print all hosts responding with their ipv4 address.

Find all files larger than 500M and less than 1GB

Combine cssh and shell expansion to execute commands on a large cluster
This will open an awful lot of little windows, but is quite useful if you want to quickly patch something on a cluster of servers.

Better git diff, word delimited and colorized
Define a git alias then git dcolor

Copy a directory recursively without data/files

Clean your broken terminal
If something fracks up your terminal, just type in 'reset' and everything should be good again.

Download song from youtube for import into itunes (m4a format)
Last argument is the youtube link. Requires ffmpeg

Add a progress counter to loop (see sample output)
For this hack you need following function: $ finit() { count=$#; current=1; for i in "$@" ; do echo $current $count; echo $i; current=$((current + 1)); done; } and alias: $ alias fnext='read cur total && echo -n "[$cur/$total] " && read' Inspired by CMake progress counters.

Sort movies by length, longest first
Sort .avi movies by time length, print the longest first, and so on...


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