https://atrc.net.pk/dokuwiki/ 2026-04-14T16:58:11+00:00 https://atrc.net.pk/dokuwiki/ https://atrc.net.pk/dokuwiki/lib/tpl/dokuwiki/images/favicon.ico text/html 2023-05-04T12:13:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://atrc.net.pk/dokuwiki/doku.php?id=products:ict:linux:shell_scripting:arithmetic&rev=1683202380&do=diff Shell Scripting Arithmetic let is a builtin function of Bash that allows us to do simple arithmetic. It follows the basic format: let <arithmetic expression> The arithmetic expression can take a variety of formats which we'll outline below. The first part is generally always a variable which the result is saved into however. text/html 2024-04-25T05:43:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://atrc.net.pk/dokuwiki/doku.php?id=products:ict:linux:shell_scripting:shell_programming&rev=1714023780&do=diff ShellProgramming Shell Scripting So far, you have entered commands one at a time. Computer programming is merely the idea of getting a number of commands to be executed, that in combination do some unique powerful function. Introduction To execute a number of commands in sequence, create a file with a .sh extension, into which you will enter your commands. The .sh extension is not strictly necessary but serves as a reminder that the file contains special text called a shell script. From now … text/html 2023-05-06T06:23:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://atrc.net.pk/dokuwiki/doku.php?id=products:ict:linux:shell_scripting:shell_scripting_course&rev=1683354180&do=diff Topics Shell Scripting Arithmetic Case statements if statements for loops while loops infinite loops Cut Awk sed Difference between sh and bash. $RANDOM read echo redirection < > >> 2> &> pipe | command pipelining netcat to pipeline over computers text/html 2023-05-06T06:19:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://atrc.net.pk/dokuwiki/doku.php?id=products:ict:linux:shell_scripting:shell_scripting_outline&rev=1683353940&do=diff Course Outline Introduction Objectives Course Schedule Course Introductions Pre-requisites Bibliography Delegate Responsibilities Course Summary Review of Basics - optional Files Directories and Processes Displaying Directories - ls Getting Help - man Displaying Files - cat, more Simple Commands Piping - using | symbol Redirection - using > symbol Redirection - using >> symbol Redirecting Input - using < symbol Redirecting Errors Using /dev/null Foreground…