CODEWITHSUNDEEP
bashshell
hushwings
hushwings

Reputation: 151

How to list all exported bash functions?

In bash, we can export a function in the following way:

fname(){
  echo "Foo"
}

export -f fname

In this case, function fname is exported. But how to list this or other exported functions? AFAIK, command export or export -p can be used for displaying all the exported/included variables but this does not including functions.

Upvotes: 4

Views: 3141

Answers (3)

BBerastegui
BBerastegui

Reputation: 313

The output of the chosen solution is:

declare -fx exported_function_one declare -fx exported_function_two

In my case, as I just wanted the name of the functions, I did this:

exported_functions=$(declare -x -F | sed 's/declare -fx//')

Which outputs:

exported_function_one exported_function_two

Hope it helped someone :D

Upvotes: 0

Raad
Raad

Reputation: 4658

declare is the command to use.

Here's an example of setting and exporting some functions and listing them all, or just a specific one:

$ foo() { echo "Foo"; }
$ export -f foo
$ bar() { echo "Bar"; }
$ export -f bar
$
$ declare -f
bar ()
{
    echo "Bar"
}
declare -fx bar
foo ()
{
    echo "Foo"
}
declare -fx foo
$
$ declare -f foo
foo ()
{
    echo "Foo"
}
$

Upvotes: 0

H.-Dirk Schmitt
H.-Dirk Schmitt

Reputation: 1169

The following will list all exported functions by name:

declare -x -F

If you want also see the function code use:

declare -x -f

See help declare for details.

Upvotes: 8

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