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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 HPUX

time

time(1) 						      General Commands Manual							   time(1)

NAME

       time - time a command

SYNOPSIS

       command

       utility [argument ...]

DESCRIPTION

       When  a specified command or utility completes execution, prints the elapsed time during the command or utility, the time spent in the sys-
       tem, and the time spent executing the command or utility.  Times are reported in seconds.

       Execution time can depend on the performance of the memory in which the program is running.

       The times are printed to standard error.

       Note that the shell also has a keyword that times an entire pipeline if used anywhere in the pipeline.  This action is different  than  the
       command which times a particular command if used in a pipeline.

   Options
       recognizes the following options:

	      command  The command to be executed and timed.

	      Writes the timing statistics to standard error.

	      utility  The  name  of a utility to be invoked and timed.  If the utility operand names any of the shell special built-in utilities,
		       the time results are undefined.	See csh(1) and ksh(1) for information about special built-in utilities.

	      argument Any string that is an argument to the utility.

SEE ALSO

       csh(1), ksh(1), sh(1), timex(1), times(2).

STANDARDS CONFORMANCE

																	   time(1)
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