Commands by mcint (1)

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show framebuffer console modes to use in grub vga option
look at /boot/grub/menu.lst for somethig like: ## additional options to use with the default boot option, but not with the ## alternatives ## e.g. defoptions=vga=791 resume=/dev/hda5 ## defoptions=vga=795 # defoptions=vga=873 ## altoption boot targets option ## multiple altoptions lines are allowed ## e.g. altoptions=(extra menu suffix) extra boot options ## altoptions=(recovery) single # altoptions=(verbose mode) vga=775 debug # altoptions=(console mode) vga=ask # altoptions=(graphic mode) quiet splash # altoptions=(recovery mode) single vga=(decimal value) is framebuffer mode

Find files and calculate size of result in shell
Use find's internal stat to get the file size then let the shell add up the numbers.

Encrypted archive with openssl and tar
Create an AES256 encrypted and compressed tar archive. User is prompted to enter the password. Decrypt with: $ openssl enc -d -aes256 -in | tar --extract --file - --gzip

quick integer CPU benchmark
This is a quick and dirty way to generate a (non-floating-point) CPU-bound task to benchmark. Adjust "20" to higher or lower values, as needed. As a benchmark this is probably a little less bogus than bogomips, and it will run anywhere 'bc' does.

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

Don't save commands in bash history (only for current session)
Unsetting HISTFILE avoid getting current session history list saved.

Find the package that installed a command

List only the directories
to include hidden dirs use: $ tree -adL 1 (with ls, requires 'ls -ad */ .*/')

check open ports without netstat or lsof

list block devices
Shows all block devices in a tree with descruptions of what they are.


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