4.6 Built-in Commands (Bourne and Korn Shell)

Examples to be entered as a command line are shown with the $ prompt. Otherwise, examples should be treated as code fragments that might be included in a shell script. For convenience, some of the reserved words used by multi-line commands are also included.

• #
• #!shell
• :
• .
• [[ ]]
• name
• alias
• autoload
• bg
• break
• case
• cd
• continue
• do
• done
• echo
• esac
• eval
• exec
• exit
• export
• false
• fc
• fg
• fi
• for
• function
• getopts
• hash
• hash
• history
• if
• integer
• jobs
• kill
• let
• newgrp
• nohup
• print
• pwd
• r
• read
• read
• readonly
• return
• select
• set
• shift
• stop
• suspend
• test
• time
• times
• trap
• type
• typeset
• ulimit
• umask
• unalias
• unset
• until
• wait
• whence
• while
• filename