Linux Shells by Example

11.11. 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 (see Example 11.48 below). For a description of each built-in, see Table 10.24 on page 591.

Example 11.48.

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 ...