Le 02/10/2021 à 15:09, Greg Wooledge écrivait :
On Sat, Oct 02, 2021 at 01:41:35PM +0200, Léa Gris wrote:
$ declare -f hello
hello ()
{
echo 'hello';
echo 'world'
}
The issue is that in some circumstances, newline characters may be handled
as space, making the function declaration invalid.
Can you show an example where the output of declare -f is invalid?
hello (){ echo 'hello';echo 'world';}
LC_MESSAGES=C sudo bash -c "$(declare -f hello);hello"
hello
world
LC_MESSAGES=C sudo -i bash -c "$(declare -f hello);hello"
bash: -c: line 2: syntax error: unexpected end of file
Better illustrated how newlines are discarded:
$ sudo bash -c 'echo hello
echo world'
hello
world
$ sudo -i bash -c 'echo hello
echo world'
helloecho world
Or:
$ sudo bash -c "printf %q\\\n \"$(declare -f hello)\""
$'hello () \n{ \n echo \'hello you the\';\n echo \'world\'\n}'
sudo -i bash -c "printf %q\\\n \"$(declare -f hello)\""
hello\ \(\)\ \{\ \ \ \ \ echo\ \'hello\ you\ \ the\'\;\ \ \ \ echo\ \'world\'\}
--
Léa Gris
