09-03-2009
Quote:
Originally Posted by
niceguyeddie
Hi
./myprogram <&4 &
Then later:
echo "inputstring" >&4
then later again
cat somefile >&4
This results is bash telling me "Bad file descriptor" when I start ./myprogram
The whole point of this is to exercise a library that I've written. Its wrapped in a C frontend that takes input from stdin (like a psuedo command line program). It's got to stay alive though so the data in my library under test can stay persistent.
Any idea if this is possible?
Um, you can't use a file descriptor that does not exist (hopefully you have prepared your C code better :-)
As mentioned earlier, you should create a FIFO (a special file). Have a look at mknod's manual page (parameter
p is what you are looking for).
pen
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LEARN ABOUT SUSE
command-not-found
COMMAND-NOT-FOUND(1) http://en.opensuse.org/Sco COMMAND-NOT-FOUND(1)
NAME
command-not-found - A command-not-found handler
SYNOPSIS
command-not-found {binary_name} {repository}
ARGUMENTS
The following arguments are required:
binary_name
The name of binary you are looking for.
repository
The name of repository for search. For most cases, use zypp
DESCRIPTION
command-not-found handler is designed to tell users which package contains a missing command.
The handler is integrated to bash(1) and zsh(1) shells and is not necessary to call it directly. Just type a name of the command in your
favourite shell and you'll get a result.
If you consider c-n-f handler useless, just add unset command_not_found_handle to your profile or remove the command-not-found package.
Handler doesn't call the command-not-found binary directly, it only prints info about it. If you want to invoke it automatically, just add
export COMMAND_NOT_FOUND_AUTO=1 to your bash profile.
EXAMPLE
: NORMAL USAGE
For example you want to try blender, because you have heard that is an amazing program. So just type blender in shell:
$ blender
You get the following output:
The program 'blender' can be found in the following package:
* blender [ path: /usr/bin/blender, repository: zypp (openSUSE 11.1-0) ]
Try installing with:
sudo zypper install blender
bash: blender: command not found
SEE ALSO
scout(1)
AUTHOR
Pavol Rusnak <stick@gk2.sk>
Developer
http://gitorious.org/opensus 08/07/2009 COMMAND-NOT-FOUND(1)