Unix shells

Command-line shells that originate from, or are closely associated with, Unix.

• POSIX
  The POSIX shell specification and related resources.
• Bash
  Reference material and guides for Bash.
• Z shell (Zsh)
  The Z shell (Zsh) and its popular configuration frameworks.
• C shell (csh and tsch)
  Resources on the C shell (csh) and its enhanced successor, tcsh.
• Fish
  The friendly interactive shell (fish).
• KornShell
  The KornShell (ksh).
• Qshell (qsh)
  IBM i’s Qshell (qsh).
• Others…​
  Other Unix shells that don’t fit neatly into the more common categories.