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Linux Shells by Example by Ellie Quigley

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10.12. Built-In Commands

Rather than residing on disk like Linux executable commands, built-in commands are part of the TC shell's internal code and are executed from within the shell. If a built-in command occurs as any component of a pipeline except the last, it is executed in a subshell. The tcsh command aptly called, builtins, lists all the built-in commands:

Example 10.86.
					1  > builtins
					:          @          alias      alloc     bg         bindkey    break
					breaksw    builtins   case       cd        chdir      complete   continue
					default    dirs       echo       echotc    else       end        endif
					endsw      eval       exec       exit      fg         filetest   foreach
					glob       goto       hashstat   history   hup        if         jobs
					kill       limit      log        login     logout     ls-F       nice
					nohup      notify     onintr     popd      printenv   pushd      rehash
					repeat     sched      set        setenv    settc      setty      shift
					source stop suspend switch ...

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