bash };:
I'm asking in this topic 'cause I think most bash experts can be found here;-)
Here we go: can somebody please explain how the 2'nd and 3'rd : are interpreted by bash in following command.
:() {;:};:
I assume bash uses them as modifiers.
NOTE, this command is dangerous, take care when using.
Anyway, my question is not just a joke, 'cause I'm using scripts like this:
# ..
debug=echo # set to : to switch debug off
# ..
$debug some command and args
some command and args
# ..
Here we go: can somebody please explain how the 2'nd and 3'rd : are interpreted by bash in following command.
:() {;:};:
I assume bash uses them as modifiers.
NOTE, this command is dangerous, take care when using.
Anyway, my question is not just a joke, 'cause I'm using scripts like this:
# ..
debug=echo # set to : to switch debug off
# ..
$debug some command and args
some command and args
# ..
kyrmit
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
> In your case however, you overwrite the default ':' command by appending (). Which is the way to create a function.
Hmm, does this mena that bash's parser does not require the function keyword to define a new function, **and** that a function name may contain punctation characters.
Or is this a result of a lazy grammer definition for the parser?
Anyway, if so, I know know why I avoided using bash since the beginning of ages ...
Hmm, does this mena that bash's parser does not require the function keyword to define a new function, **and** that a function name may contain punctation characters.
Or is this a result of a lazy grammer definition for the parser?
Anyway, if so, I know know why I avoided using bash since the beginning of ages ...
Hi
in bash, the function command is optional. You can define functions with or without it. I don't think that it was intended that you can replace the : command. Obviously, you can in the version I tried.
The function name _should_ be only alphanumerical characters and '_'.
K.
in bash, the function command is optional. You can define functions with or without it. I don't think that it was intended that you can replace the : command. Obviously, you can in the version I tried.
The function name _should_ be only alphanumerical characters and '_'.
K.
ASKER
kyrmit, this was a perfect answer, even the solution (bash) does not satisfy my requirements.
Enjoy the increased points ;-)
Enjoy the increased points ;-)