creates a tar.gz with a name like:

backup20090410_173053.tar.gz

of a given directory.

this file was made 10 April 2009 at 5:30:53pm

see date's man page to customize the timestamp format

A bash function might also be useful:

Or if you want less verbose output:

Usage:

Declare this function in your Shell, then use it like this:

The script will search for the 'foo' pattern in your current xmms2 playlist (artist or songname), and play the first occurence of it !

I have often file like this

01 - file.file

02 - file.file

03 - file.file

I rename all with this command

for f in * ; do mv -- "$f" "${f/[0-9][0-9] \- /}" ; done

then it looks like this

file.file

file.file

file.file

etc

The report mode of mtr produces a text formated result of the mtr run using the number of ping cycles stated by the command. This text file could then be attached to an email with ease.

I use this also without the ">" portion when writing email from within mutt using VI from the command mode with ":r !mtr --report --report-cycles 10

Get the svn info, grep for the "URL" of the repository, pull out the tag/branch/trunk, and then just show the helpful/meaningful bit.

On Ubuntu, the default editor for visudo is nano. To change the editor to something else (e.g., vi) use this command.

Linux : these script enable you to edit multiple files and remove exact phrase from multiple files

Nicely display permissions in octal format and filename for a given directory

Execute a command on shell logout,and run it until is finished,then shell is closed.

Very handy to bring the word currently under the cursor into a :s command in Vim.

Example:

If the cursor was on the word "eggs":

:s/ ==> :s/eggs

Running this code will execute dd in the background, and you'll grab the process ID with '$!' and assign it to the 'pid' variable. Now, you can watch the progress with the following:

The important thing to grasp here isn't the filename or location of your input or output, or even the block size for that matter, but the fact that you can keep an eye on 'dd' as it's running to see where you are at during its execution.

Note that this will not work with files with spaces or characters that need to be escaped. Feel free to leave any comments to improve upon this command, and I'll add it in.

Thanks!

Suppose that you had change in a directory like /home/user/mycode/code, and now you need to list it, instead of type entire path again, use ls !$ to recall path and list. Useful with many commands, this is only an example. (In this case, same result can be achivied with ls .)

Remove blank lines from files, even if some of the lines have whitespace (spaces, tabs, etc.). Also creates a .bak copy of the original file. Works on Mac also.

Thanks to those all those who left comments.

I needed this for wine.

That will open vi with the four README files in different viewports.

Specially handy when you find there is only one file matching your pattern and you don't want to specify the full path.