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Not a discovery but a useful one nontheless.
In the above example date format is 'yyyymmdd'. For other possible formats see 'man date'.
This command can be also very convenient when aliased to some meaningful name:
alias mkdd='mkdir $(date +%Y%m%d)'
Lndir create from source directory to destination directory a full symlink tree of all contents of source directory, really useful for propagate changes from a directory to another.
Look search for lines in a file that beginning with a given string.
Same as $ grep ^n /etc/passwd
You can also use sha1sum and variants for longer passwords
Yields entries in the form of "/dev/hda1" etc.
Use this if you are on a new system and don't know how the storage hardware (ide, sata, scsi, usb - with ever changing descriptors) is connected and which partitions are available.
Far better than using "fdisk -l" on guessed device descriptors.
compile and install openvm-tools module in debian lenny
Under Ubuntu smbclient is part of the samba package. With the version I use (3.0.28a) cd-ing into folders with spaces in the name is a drag. You have to put the folder name in quotes:
smb: \Shared\> cd "Marketing and PR"
Give the Speed and Link status of eth# 0-3. This is sort of what mii-tool does, but eth-tool is better, yet lacks device discovery.
Maybe you know shorter ?
If you edit your .profile you need to refresh it for changes to take place. Simple way to refresh is logout and login. This command is the quickest way to do it.
If you're deleting some variables, they would not get nulled with this command but just removed.
connects to all the screen instances running.
tell you how many Non free software is on your machine, which package it is and which restriction on freedom it has . require vrms package , vrms mean virtual Richard M. Stallman :)
Require boxes and / or cowsay packages.
After input boxes -d dog , type your text and then press ctrl + d . Same goes for cowsay .
need toilet package , same goes for figlet
showfigfonts | less : give the list of font available for options
sudo apt-get install moon-buggy
An ascii 2D game where you control a mooncar and try to avoid moonhole by jumping (press space )
sudo apt-get install bb
A demoscene intro in ascii art with tracker song