Commands using echo

Nice reading in the morning on the way to work, but sadly the .tar.gz for the whole issue 66 is not on phrack's website yet. So use wget to download.

^Hexadecimal Ten minus Octal Ten is Eight(in Decimal).

^Hexadecimal AF and Octal 257 are both Decimal 175.

Here the pattern is '*.jar', you could pass in any pattern.

Another, maybe nicer way to do this is

http://www.commandlinefu.com/commands/view/1921/summarise-the-size-of-all-files-matching-a-simple-regex

You could replace sed with tr

use to execute a block of code only if $var is numeric

Print out list of all branches with last commit date to the branch, including relative time since commit and color coding.

fancy command line ncdu clone

ramdomize the execution of the command echo 'hello world!'

It happened to me that I got a season of a tv-show which had all files under the same folder like /home/blah/tv_show/season1/file{1,2,3,4,5,...}.avi

But I like to have them like this:

/home/blah/tv_show/season1/e{1,2,3,4,5,...}/file{1,2,3,4,5,...}.avi

So I can have both the srt and the avi on one folder without cluttering much. This command organizes everything assuming that the filename contains Exx where xx is the number of the episode.

You may need to set:

if your filenames have spaces.

Just find out the daemon with $ netstat -atulpe. Then type in his name and he gets the SIGTERM.

http://www.google.com

Works under bash on linux. just alter the '-e' option to its corresponding equivalence in your system to execute escape characters correctly.

Tuned for short command line - you can set the path to sessionstore.js more reliable instead of use asterixes etc.

Usable when you are not at home and really need to get your actual opened tabs on your home computer (via SSH). I am using it from my work if I forgot to bookmark some new interesting webpage, which I have visited at home. Also other way to list tabs when your firefox has crashed (restoring of tabs doesn't work always).

This script includes also tabs which has been closed short time before.

This is one way to find out.

Important to know: a valid date will return 0, otherwise 1!

Quick and easy way of validating a date format of yyyy-mm-dd and returning a boolean, the regex can easily be upgraded to handle "in betweens" for mm dd or to validate other types of strings, ex. ip address.

Boolean output could easily be piped into a condition for a more complete one-liner.

echox prints given argument on bottom line center screen in terminal

exhoxy prints given argument center screen

echos prints date and time on second from last line (used as status message)

you can easily use these functions by placing them in your .bashrc file, make sure to source your .bashrc once you do

You can use a site like http://www.jsonlint.com/ or use the command line to validate your long and complex json data. This is part of the simplejson package for python http://undefined.org/python/#simplejson.

Wrong json expression example:

Expecting property name: line 1 column 2 (char 2)

The variable ? contain the last exit status of a command, it can be printed for troubleshooting purpose.

Runs an instance of screen with name of "name_me" and command of "echo "hi""

To reconnect to screen instance later use:

screen -r name_me

Useful when you've produced a large file of numbers, and want to quickly see the distribution. The value of y halfway along the x axis is the median. Simple!

Just create the listOfNumbers.txt file with a number on each line to try it out.

Umask is obtained subtracting 7 from each cypher of octal format. I store octal perm format in an array,then for each element of array I subtract 7. The result is the umask.