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Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
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On Windows 2000 or newer, you can use the command line to save the current network interface info.
You can then edit the text file and re-apply it using the netsh -f command (or netsh exec). Keep a bunch of text files around to quickly switch connection info without using extra software.
Perl variant of echo several blank lines command
created and tested on:
ProductName: Mac OS X
Not always does Xorg run on :0. For times like those, this script allows you to find out which it is.
It is not easy to make perl give a segfault, but this does it. This is a known issue but apparently not easy to fix. This is completely useless except for showing people that perl is not bullet-proof.
From live CD mount(open) the Ubuntu installed drive.
Copy the location (press Ctrl+l, Ctrl+c ) eg: /media/ubuntuuuu
Open terminal (Apllication->accessories->terminal)
sudo grub-install --root-directory=/media/ubuntuuuu /dev/sda
(replace /media/ubuntuuuu with what u got (ie paste))
Will show success message. Now reboot
This is a useful command that gives the hostname and the IP Address of your machine, on many OS. Tested on Linux and Solaris.
host command here is followed by `hostname`. Note the ` in the command is a back quote (or grave accent or back tic that usually shares the space with the ~ key). No other options are specified. See sample output.
another replacement for cat.
Uses curl, xmlstarlet and festival to speak your horoscope. Modify the m (month) and d (day) parameters to the astrology web service to hear your personal horoscope.
Read and execute commands from FILENAME in the current shell. The entries in $PATH are used to find the directory containing FILENAME. If any ARGUMENTS are supplied, they become the positional parameters when FILENAME is executed.
For instance, to add mongodb 10gen package
echo "deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen" | sudo tee -a /etc/apt/sources.list
In the Windows cmd.exe window, you can change the directory using cd, but if you need to go to a directory on another drive, you need to type in the drive letter and colon first (e.g. d:). With the /d on cd, you don't need this intermediate step.
Tested on Windows XP
I've seen some versions of hostname that don't have the -i option, so this may not work everywhere. When available, it's a better alternative than using ifconfig and wasting eyeball muscle to search for the address, and it's definitely simpler than using awk/sed.
Easy way to grab the IP address of a machine for easy script use. If needed a "| grep -v 127.0.0.1" at the end will suppress localhost.