mapfile

Read lines from the standard input into an indexed array variable.

Documentation

• mapfile [EN] @ GNU Bash Reference Manual

• bash -c 'help mapfile'
• man 1 'bash' [EN]

Syntax

mapfile [PARAMETER ...] [ARRAY]

Parameters

-d DELIMITER

Use DELIMITER to terminate lines, instead of newline.

-n NUMBER

Copy at most NUMBER lines. If NUMBER is 0, all lines are copied.

-t

Remove a trailing DELIMITER from each line read (default newline).

-s NUMBER

Discard the first NUMBER lines read.

Examples

Find all variables with the name pattern machine_ & store them to the array machines

mapfile -t 'machines' < <(compgen -v 'machine_')