/Courses/Linux/Users and Groups/Users and Groups9 May 2026· loading · loading · LikeLinuxAuthorRussell ChubbWorking at the intersection of Technology and Art. Learn Linux - This article is part of a series.Part 1: man commandPart 2: ls commandPart 3: cdPart 4: pwdPart 5: mkdirPart 6: rmPart 6: rmdirPart 6: sshPart 6: unamePart 6: This ArticlePart 7: mv commandPart 8: cpPart 9: touchPart 10: findPart 11: gzipPart 12: tarPart 13: aliasPart 14: Cat CommandPart 15: lessPart 16: tailPart 17: wcPart 18: grepPart 19: sortPart 20: diffPart 21: echoPart 22: chownPart 23: chmodPart 24: duPart 25: dfPart 26: psPart 27: topPart 28: killPart 29: jobsPart 30: bgPart 31: fgPart 32: whichPart 33: vimPart 34: whoamiPart 35: suPart 36: sudoPart 37: pingPart 38: clearPart 39: historyPart 40: cronPart 41: Environment VariablesPart 42: File PermissionsPart 43: Package ManagersPart 44: Pipes and RedirectionPart 45: ProcessesPart 46: Shell ScriptingLearn Linux - This article is part of a series.Part 1: man commandPart 2: ls commandPart 3: cdPart 4: pwdPart 5: mkdirPart 6: rmPart 6: rmdirPart 6: sshPart 6: unamePart 6: This ArticlePart 7: mv commandPart 8: cpPart 9: touchPart 10: findPart 11: gzipPart 12: tarPart 13: aliasPart 14: Cat CommandPart 15: lessPart 16: tailPart 17: wcPart 18: grepPart 19: sortPart 20: diffPart 21: echoPart 22: chownPart 23: chmodPart 24: duPart 25: dfPart 26: psPart 27: topPart 28: killPart 29: jobsPart 30: bgPart 31: fgPart 32: whichPart 33: vimPart 34: whoamiPart 35: suPart 36: sudoPart 37: pingPart 38: clearPart 39: historyPart 40: cronPart 41: Environment VariablesPart 42: File PermissionsPart 43: Package ManagersPart 44: Pipes and RedirectionPart 45: ProcessesPart 46: Shell Scripting RelatedCat Command374 words·2 mins· loading · loading LinuxIntroduction to the Cat Command in LinuxEnvironment Variablesloading · loading LinuxIntroduction to Environment Variables in LinuxFile Permissions397 words·2 mins· loading · loading LinuxIntroduction to File Permissions in Linux