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Full Discussion: Redirect string from bash stderr to user stdin
Top Forums Shell Programming and Scripting Redirect string from bash stderr to user stdin Post 302998244 by Don Cragun on Saturday 27th of May 2017 10:18:00 PM
Old 05-27-2017
As has been said before, your request is not at all clear. If you would show us the output produced by command to its standard output and to its standard error and show us the output you are trying to produce, we would have a much better chance of helping you.

If you're saying that you want a bash script that you have named command is to read its own standard error output as part of its input, it might be impossible or it might be trivial depending on what your script is trying to do. If this is the case, we need to see the code in your script; not the way you are currently trying to invoke it. (And, the comments in your script had better be extremely clear about where the feedback loop is and what it is trying to do.)

Note that there is also a standard utility named command. Are you sure that you are invoking your script instead of the standard command utility??? The command utility is a shell built-in in bash, ksh, and many other shells based on Bourne shell syntax.
 

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LEARN ABOUT REDHAT

open

OPEN(1) 							     Linux 1.x								   OPEN(1)

NAME

       open - start a program on a new virtual terminal (VT).

SYNOPSIS

       open [-c vtnumber] [-s] [-u] [-l] [-v] [--] command command_options

DESCRIPTION

       open will find the first available VT, and run on it the given command with the given command options, standard input, output and error are
       directed to that terminal. The current search path ($PATH) is used to find the requested command. If no command is specified then the envi-
       ronment variable $SHELL is used.

   OPTIONS
       -c vtnumber
	      Use the given VT number and not the first available. Note you must have write access to the supplied VT for this to work.

       -s     Switch to the new VT when starting the command. The VT of the new command will be made the new current VT.

       -u     Figure out the owner of the current VT, and run login as that user.  Suitable to be called by init. Shouldn't be used with -c or -l.

       -l     Make the command a login shell. A - is prepended to the name of the command to be executed.

       -v     Be a bit more verbose.

       -w     wait for command to complete. If -w and -s are used together then open will switch back to the controlling terminal when the command
	      completes.

       --     end of options to open.

NOTE

       If open is compiled with a POSIX (Gnu) getopt() and you wish to set options to the command to be run, then  you	must  supply  the  end	of
       options -- flag before the command.

EXAMPLES

       open can be used to start a shell on the next free VT, by using the command:

       open bash

       To start the shell as a login shell, use:

       open -l bash

       To get a long listing you must supply the -- separator:

       open -- ls -l

SEE ALSO

       login(1), doshell(8), switchto(1).

AUTHOR

       Jon Tombs <jon@gtex02.us.es or jon@robots.ox.ac.uk>
       -w idea from "sam".

19 Jul 1996							       V1.4								   OPEN(1)
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