Commands by aysadk (101)

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Binary clock
Fun idea! This one adds seconds and keeps running on the same line. Perl's probably cheating though. :)

For a $FILE, extracts the path, filename, filename without extension and extension.
Useful for use in other scripts for renaming, testing for extensions, etc.

Generate 2000 images with its number written on it

execute your commands and avoid history records
$ secret_command;export HISTCONTROL= This will make "secret_command" not appear in "history" list.

Display which distro is installed

Sort the size usage of a directory tree by gigabytes, kilobytes, megabytes, then bytes.
Probably only works with GNU du and modern perls.

Retry the previous command until it exits successfully
Executes the previously-run command constantly until it returns 0 (success). Put a

Performance tip: compress /usr/
Periodically run the one-liner above if/when there are significant changes to the files in /usr/ = Before rebooting, add following to /etc/fstab : = $ /squashed/usr/usr.sfs /squashed/usr/ro squashfs loop,ro 0 0 $ usr /usr aufs udba=reval,br:/squashed/usr/rw:/squashed/usr/ro 0 0 No need to delete original /usr/ ! (unless you don't care about recovery). Also AuFS does not work with XFS

Read the output of a command into the buffer in vim
This will append the output of "command" to whatever file you're currently editing in vim. Who else has good vim tricks? :)

Burn an ISO on the command line.


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