help

Display information about Bash builtin commands. More information: https://www.gnu.org/software/bash/manual/bash.html#index-help.

• Display the full list of builtin commands:

help

• Print instructions on how to use the while loop construct:

help while

• Print instructions on how to use the for loop construct:

help for

• Print instructions on how to use [[ ]] for conditional commands:

help [[ ]]

• Print instruction on how to use (( )) to evaluate arithmetic expressions:

help \( \)

• Print instructions on how to use the cd command:

help cd