SSH Tricks: extract the public key from the private key
Recently i learned something really cool! since the public ssh key is part of the private ssh key we can extract the public key from the……
$ grep -rn "#Linux" ./posts
Linux: Awesome tricks with the CONT and STOP signals and the renice command
The kill command can send a variety of signals to a process and not just terminate a process like its name suggest, but that’s is default……
Linux: Troubleshoot programs with strace like a pro
What you can do when a program crass without any error or log indicating that something goes wrong? and you don't have the source code? use……
Linux: The pee command, redirect stdin to multiple command pipelines
The Linux pee command will split your stdout to two or more streams which can be super handy in situations where stdin data processing in……
Linux: The diff and patch commands.
As a Linux sysadmin / developer you will need more than once to update files and pass those changes to other users, most likely you will do……
Linux: how to replace text between strings
One of the most common operations i have to do is to replace text between strings with another string or just delete the string, to do this……
Linux: Set a users password to “never” expire.
In this article i will show you how to set a users password to never expire, to do this we will use the chage command, this command can be……
Awesome awk oneliners
I use awk very often, here are some of the one-liners i use often.…
Linux: Navigate directories the easiest way possible
What problem solves?…
Linux: stdin, stdout and stderr, how to work with them
bash utilize file descriptors to read and write data, The numerals 0 through 9 are file descriptors .…