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/Fish 3.1

string-collect - join strings into one

Synopsis

string collect [(-N | --no-trim-newlines)] [STRING...]

Description

string collect collects its input into a single output argument, without splitting the output when used in a command substitution. This is useful when trying to collect multiline output from another command into a variable. Exit status: 0 if any output argument is non-empty, or 1 otherwise.

If invoked with multiple arguments instead of input, string collect preserves each argument separately, where the number of output arguments is equal to the number of arguments given to string collect.

Any trailing newlines on the input are trimmed, just as with "$(cmd)" substitution in sh. --no-trim-newlines can be used to disable this behavior, which may be useful when running a command such as set contents (cat filename | string collect -N).

Examples

>_ echo \"(echo one\ntwo\nthree | string collect)\"
"one
two
three
"

>_ echo \"(echo one\ntwo\nthree | string collect -N)\"
"one
two
three"

© 2019 fish-shell developers
Licensed under the GNU General Public License, version 2.
https://fishshell.com/docs/3.1/cmds/string-collect.html