Commands by xutale (4)

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tcmdump check ping
capture only ping echo requests with tcpdump

Write comments to your history.
A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

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

Create a DOS floppy image
mount with: mount -t msdos -o loop ./floppy.img /tmp/mnt

Mirror every lvol in vg00 in hp-ux 11.31

save command output to image

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"

Change Random Wallpaper on Gnome 3
Change Random Wallpaper on Gnome 3

Create a bunch of dummy files for testing
Sometimes I need to create a directory of files to operate on to test out some commandlinefu I am cooking up. The main thing is the range ({1..N}) expansion.

View All Processess Cmdlines and Environments
Grabs the cmdline used to execute the process, and the environment that the process is being run under. This is much different than the 'env' command, which only lists the environment for the shell. This is very useful (to me at least) to debug various processes on my server. For example, this lets me see the environment that my apache, mysqld, bind, and other server processes have. Here's a function I use: $ aa_ps_all () { ( cd /proc && command ps -A -opid= | xargs -I'{}' sh -c 'test $PPID -ne {}&&test -r {}/cmdline&&echo -e "\n[{}]"&&tr -s "\000" " "


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