bash-hackers-wiki/docs/commands/builtin/export.md
Hanson Char b75c3a588b Fix hyperlinks of markdown pages at depth 3
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Related to https://github.com/flokoe/bash-hackers-wiki/issues/10
2024-01-28 17:26:57 -08:00

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Markdown

# The export builtin command
## Synopsis
export [-fn] [NAME[=VALUE] ...]
export -p
## Description
The `export` builtin command is used to mark variables or functions
referenced by `NAME` for automatic export to the environment. If `NAME`
is a shell variable, a value `VALUE` can be assigned before exporting
it.
### Options
Option Description
-------- ------------------------------------------------------------------------------------------------------------
`-f` refer to shell functions
`-n` remove the export property from any referenced `NAME`
`-p` print all exported variables, with `-f`, print all exported functions - all in a format re-usable as input
An argument of `--` disables further option processing.
### Return status
Status Reason
-------- ---------------------------
0 no error
!=0 invalid option
!=0 a given `NAME` is invalid
## Examples
Set the display to use when launching a GUI application (useful during
SSH sessions):
export DISPLAY=":0"
Set your default text editor (e.g. SublimeText):
export EDITOR=subl
## Portability considerations
- in POSIX(r), only the `-p` option is specified
- in POSIX(r), only variables (with value assignment) are to be
exported, not shell functions
## See also
- [declare](../../commands/builtin/declare.md)