Tagged: linux

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Setting up tmux without root access

At times we want access to tmux and we are just stuck due to admin restrictions or root access. There are three important parts to setting up tmux, It is dependent on libevent Compiling and installing on non-system folders require customized...

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SSH Keep connection alive

Add below lines to file ~/.ssh/config Host * ServerAliveCountMax 3 ServerAliveInterval 10 TCPKeepAlive yes The first line specifies that this applies to all hosts The second and third specify that SSH2 keepalive messages should be sent every 10 seconds during...

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iTerm2 shell integration scripts offline usage

At times we are working in an internet less environment. So, here are a few things we can do, Make the scripts available over a local http server Change scripts for any http://internet-address/ to http://local-address Making scripts available on local $...

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Run a script as root

Source: http://www.cyberciti.biz/tips/shell-root-user-check-script.html Sometime it is necessary to find out if a shell script is being run as root user or not. When user account created a user ID is assigned to each user. BASH shell stores the user ID in $UID...

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Super charge bash with these bash_profile tips

Some tips and tricks to super charge bash Tip #01: Up down arrow auto complete ~/.inputrc #File: ~/.inputrc ## arrow up “\e[A”:history-search-backward ## arrow down “\e[B”:history-search-forward   Tip #2: Auto complete hostnames in ssh, scp. More details here. $ brew install...

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ldapsearch – ldap command to test connection

Well the post name is a misnomer. Lately I’ve been using ldapsearch command to test connection to ldap server, hence the name. Following is the shell command, $ ldapsearch -x -LLL -h ldapserver.example.com -D username -w password -b “DC=example,DC=com” -s...

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Setup bulk password-less ssh

Following script will help in setting up password-less ssh in one shot to multiple machines, Usage sample: $ remote-keyless.sh <file_of_hosts.txt> [password] #!/usr/bin/expect -f # remote-keyless.sh, v0.1, 2016-05-03, [email protected] # v0.2, 2016-09-28, [email protected] – added to make it compatible with pdsh ;)...

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Processing shell program arguments

Method 1: Without using getopts while [[ $# > 1 ]] do key=”$1″ case $key in -u|–user) _USER=”$2″ shift # past argument ;; -s|–server) _SERVER=”$2″ shift # past argument ;; *) # unknown option printf “Usage: %s: [-s <server> -u...

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A nice .vimrc

Using the settings below will add colors to vi editor, change the tabstops to 4 and adds more niceness. This is how my .vimrc looks like. filetype plugin indent on ” show existing tab with 4 spaces width set number...