Add -n to last command to restrict to last num logins, otherwise it will pull all available history. Show Sample Output

quick in directory backup of all files in this directory. Adds the .bak extension to all copies.

This command will delete all branches in your git repository other than next and master. I use this to cleanup my git repos after making multiple branches and merging them back into next. It's much faster than individually deleting each expired branch using: git branch -D <branch_name>

show physical disk using, except tmpfs, gvfs, and so on.

Batch Convert MP3 Bitrate to xxxkbps, all the new files will be placed in a folder called "save". Please replace xxx with the desired bitrate. WARNING!!! This will erase any tag information; this is where Picard or EasyTAG will come in handy. Show Sample Output

This begins recursively looking at dot files starting from "./path_to_dir". Then it prints out the names of those files. If you are satisfied with the list of files discovered then you can delete them like so `find ./path_to_dir -type f -name '.*' -exec rm '{}' \;` which executes the removal program against each of those names previously printed. This is useful when you want to remove thumbnail files on Mac OSX/Windows or simply want to reset an app's configuration on Linux.

finds all forms instanciated into a symfony project, pruning svn files.

I found Flash eating one of my CPUs after resume, the command above will help with that. For optional kicks you can put it into a script in /etc/pm/sleep.d/ (aspect in #swhack wrote this for me)

This command works at least in 9.04+

Deletes capistrano-style release directories (except that there are dashes between the YYYY-MM-DD) Show Sample Output

After installing Termbeamer (see termbeamer.com) you can use it to share a terminal session with one or more others even from behind a firewall or NAT.

Undo accidental file add to mercurial. This command undo file adds to all recent adds

Handles the color codes intended for 256-color terminals (such as xterm-(256)color and urxvt-unicode-256color), in addition to the standard 16-color ANSI forms. Overkill for strict ANSI output, see other options for something simpler.

Find all files larger than 500M in home directory and print them ordered by size with full info about each file. Show Sample Output

Output contains also garbage (text parts from netstat's output) but it's good enough for quick check who's overloading your server.

Needs to be run in a battery sysfs dir, eg. /sys/class/power_supply/BAT0 on my system. Displays the battery's current charge and the rate per-second at which energy is {dis,}charging. All values are displayed as percentages of "full" charge. The first column is the current charge. The second is the rate of change averaged over the entire lifetime of the command (or since the AC cable was {un,}plugged), and the third column is the rate of change averaged over the last minute (controlled by the C=60 variable passed to awk). The sample output captures a scenario where I ran 'yes' in another terminal to max out a CPU. My battery was at 76% charge and you can see the energy drain starts to rise above 0.01% per-second as the cpu starts working and the fan kicks in etc. While idle it was more like 0.005% per-second. I tried to use this to estimate the remaining battery life/time until fully charged, but found it to be pretty useless... As my battery gets more charged it starts to charge slower, which meant the estimate was always wrong. Not sure if that's common for batteries or not. Show Sample Output

U have to make key exchange in order to avoid continuous password prompt. Show Sample Output

lists the files found by find, waits for user input then uses xdg-open to open the selected file with the appropriate program. usage: findopen path expression [command] With the third optional input you can specify a command to use other than xdg-open, for example you could echo the filename to stdout then pipe it to another command. To get it to work for files with spaces it gets a bit messier... findopen() { files=( $(find "$1" -iname "$2" | tr ' ' '@') ); select file in "${files[@]//@/ }"; do ${3:-xdg-open} "$file"; break; done } You can replace the @ with any character that probably wont be in a file name.

Monitoring TCP connections number showing each state. It uses ss instead of netstat because it's much faster with high trafic. You can fgrep specific ports by piping right before awk: watch "ss -nat | fgrep :80 | awk '"'{print $1}'"' | sort | uniq -c" Show Sample Output

Same thing just a different way to get there. You will need lynx

% lsof -v lsof version information: revision: 4.78