The Linux Command Line & Shell Scripting

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The Linux Command line & Shell Scripting1Updated for 2016-04-13[web] [email] Resources : A Free Book2* Some of the materials covered in today s training is from this book500+ pagesStudy Resources : Tutorial Website3Study Resources : Cheat Sheets4On the portalTraining -> Slides & HandoutsStudy Resources: Man pages5Get a Command s help page:man < Command >Press q or Ctrl-C to exit the man pageYou can follow along using: Nucleus Web terminal on the BioHPC portal: or SSH from your from your Resources : Follow Shell and Command line Interfaces7The interaction between user and the operating system is provide by a shellGraphic User Interfaces & Command line Interfaces By far the most common Shell on Linux is bash(Bourne Again Shell )It has a lot of built-in commandsuser namemachine namecurrent directoryname of the commandoptions/switchesargumentsLinux Basics: The File System8Files on a Linux system are arranged in a hierarchical directory {uid}{department}{department}{uid}{PI_la b}{uidor project_name} Command line : Files and Directories9Relative path Absolute path (full path) Relative path path related to the present working directory (pwd)If my current directory is /home2/ydu, relative path is: Trainingpwdwill return : /home2/yduIf change directory to home2, relative path becomes Trainingpwdwill

The Linux Command Line & Shell Scripting 1 Updated for 2016-04-13 [web] portal.biohpc.swmed.edu [email] biohpc-help@utsouthwestern.edu

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