All commands

Some people put spaces in filenames. Others have an $EDITOR environment variable set. This defaults to vim, but you can use whatever you wish: emacs, nano, ed, butterflies, etc.

Go to "https://twitter.com/search/realtime?q=%23TeamFollowBack&src=hash" and then copy al the text on the page. If you scroll down the page will be bigger. Then put al the text in a text file called twit.txt

If you follow the user there is a high probability the users give you follow back.

To follow all the users you can use an iMacros script.

Check if Fail2Ban is running on the system and alert it with a message in the terminal

Only works on single files, doesn't preserve permissions/timestamps/ownership.

grep - Search file for character string

Search for one or more strings in one or more files. Examples:-

grep that myfile.txt

Look for the string ``that'' in the file called ``myfile.txt'' and print out each line that matches.

egrep -in "this|that" *.dat

Extended grep search *.dat files for ``this'' or ``that'' case insensitive (-i) and where found print line number (-n) along with the line contents.

When it says "Invalid Directory Name"

This will turn off SE Linux

It lists files and folder under dirname adding at the beginning of each line the file allocated size in blocks (-s). It also sorts output by file size (-S) from bigger to smaller. Actually the -t option in that precise position does not give any effect... (challenge: can you tell me why?) but of course gives to the ls command some salty taste! :)

Works at lest with .gz .bz2 .tar.gz .tar.bz2

put down the joint and rtfm :)

I put this line in my ~/.bashrc file (which I source via ~/.bash_profile). Now, when I need to install a package, I typed *install* instead of the longer version.

Get colorful fortunes dictated by an ASCII cow. For full enjoyment you'll need to have color setup enabled for your terminal.

Prints the size of Directory in human readable format like KB MB or GB. If you want to see size each files and directories inside the directory use -a option as shown in second output and if you want a total sum then add -c option :)

This will handle the case that the filename has spaces or other characters that need to be escaped.

Read all contents from current directory and display to stdout.

Using our beloved wget

Sometimes I need to move several blank lines my terminal, I usually use this command, does anybody know a better one?

Thanks