What does code 123 mean?... (Shell command failed with code 123 and no output)

What does code 123 mean?... (Shell command failed with code 123 and no output)

[Don Saklad]

a.
What does code 123 mean?... in

     (Shell command failed with code 123 and no output)


b.
Where is there a list of codes and what the codes mean?...

Re: What does code 123 mean?... (Shell command failed with code 123 and no output)

[Xah]

Don Saklad wrote:
«What does code 123 mean?... in (Shell command failed with code 123
and no output)»

possibly the exit code of unix shell commands...

Here's a excerpt from “perldoc -f system”

 The return value is the exit status of the program as returned by the
 "wait" call. To get the actual exit value, shift right by eight (see
 below). See also "exec". This is *not* what you want to use to
 capture the output from a command, for that you should use merely
 backticks or "qx//", as described in "`STRING`" in perlop. Return
 value of -1 indicates a failure to start the program or an error of
 the wait(2) system call (inspect $! for the reason).

So you might also see:

man 2 wait
man 3 exit
http://en.wikipedia.org/wiki/Exit_status#Unix

  Xah
  xah@xahlee.org
∑ http://xahlee.org/

☄

Re: What does code 123 mean?... (Shell command failed with code 123 and no output)

[Eli Zaretskii]

Which command was that?  The interpretation of the code depends on the
command which returned that code.

Re: What does code 123 mean?... (Shell command failed with code 123 and no output)

[Tim X]

Don Saklad <dsaklad@gnu.org> writes:

> a.
> What does code 123 mean?... in
>
>      (Shell command failed with code 123 and no output)
>

This is usually the exit status from the shell command you are
running. Sometimes, programs that run commands will do a logical AND of
the return value from the command and some other value, which can be
used to indicate errors in executing the command rather than errors in
the comamnd itself and you will need to do a bit shift to get the actual
error code. 



>
> b.
> Where is there a list of codes and what the codes mean?...
>

There isn't any standard list. There are some conventions on the use of
error codes, but many programs don't follow them. The best place to
check is probably the man page or other documentation for the command
you are running. Also, check the definition of shell-command - you can
call it with a 3rd argument that specifies a buffer for errors to be
sent to (i.e. shell commands stderr). Calling it with this set may give
you some clue as to what is going on. 

HTH

Tim

-- 
tcross (at) rapttech dot com dot au

Re: What does code 123 mean?... (Shell command failed with code 123 and no output)

[Don Saklad]

          > Which command was that?  The interpretation of the code
          > depends on the command which returned that code.

Around the web where are there examples of commands that could return
code 123 ?...

In this particular case it happened to be...
find -type f -print0 | xargs -0 grep -i strategylab


_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
a.
What does code 123 mean?... in

     (Shell command failed with code 123 and no output)


b.
Where is there a list of codes and what the codes mean?...

Re: What does code 123 mean?... (Shell command failed with code 123 and no output)

[Johan Bockgård]

Don Saklad <dsaklad@gnu.org> writes:

> In this particular case it happened to be...
> find -type f -print0 | xargs -0 grep -i strategylab
>
>
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> a.
> What does code 123 mean?... in
>
>      (Shell command failed with code 123 and no output)

  EXIT STATUS
         xargs exits with the following status:
         0 if it succeeds
         123 if any invocation of the command exited with status 1-125
         124 if the command exited with status 255
         125 if the command is killed by a signal
         126 if the command cannot be run
         127 if the command is not found
         1 if some other error occurred.

         Exit  codes  greater  than 128 are used by the shell to indicate
         that a
         program died due to a fatal signal.

> b.
> Where is there a list of codes and what the codes mean?...

man xargs

-- 
Johan Bockgård

Re: What does code 123 mean?... (Shell command failed with code 123 and no output)

[Peter Dyballa]

Am 07.06.2008 um 11:04 schrieb Johan Bockgård:

>   EXIT STATUS
>          xargs exits with the following status:
>          0 if it succeeds
>          123 if any invocation of the command exited with status 1-125
>          124 if the command exited with status 255
>          125 if the command is killed by a signal
>          126 if the command cannot be run
>          127 if the command is not found
>          1 if some other error occurred.
>
>          Exit  codes  greater  than 128 are used by the shell to  
> indicate
>          that a
>          program died due to a fatal signal.


You have a complicated xargs! Look, mine from FreeBSD, only offers:

DIAGNOSTICS
      The xargs utility exits with a value of 0 if no error occurs.   
If utility
      cannot be found, xargs exits with a value of 127, otherwise if  
utility
      cannot be executed, xargs exits with a value of 126.  If any  
other error
      occurs, xargs exits with a value of 1.

--
Greetings

   Pete

Engineer: a mechanism for converting caffeine into designs