PROBLEM:

Question

2

There was an error creating the child process for this terminal

rated 0 times [ 2] [ 0] / answers: 1 / hits: 10587 / 3 Years ago, thu, august 12, 2021, 7:32:40

I am using Ubuntu since the version 10.04 and found it more friendly as compared to Windows. Right now I am using ' Precise 12.04`. I have created many custom launchers for bash scripts, and never had any problem until yesterday.

I have installed a software suite which has multiple executables. The main executable abaqus is located in optsoftwaresname and is a symbolic link to the executable abq610i in /opt/softwaresname/executables/.

The main exe abaqus requires some command-line arguments. I use the argument cae, (i.e. abaqus cae) but with another command to render the graphics in a better mode, hence the final call is:
XLIB_SKIP_ARGB_VISUALS=1 abaqus cae

I made an alias for this long command in .bash_rc file as:

alias abaquscae="XLIB_SKIP_ARGB_VISUALS=1 abaqus cae"

Everything worked perfectly fine, as the alias runs the software. Being a lazy champ, I thought of creating a Cairo-dock launcher for this. So I entered abaquscae in the box "command to launch on click" and checked "Run in a terminal". However to my dismay, upon click the launcher it gave an error::

There was an error creating the child process for this terminal

Failed to execute child process "abaquscae" (No such file or directory)

Consequently I wrote a small bash script file "abaquscae.sh":

#!/bin/sh

"XLIB_SKIP_ARGB_VISUALS=1 abaqus cae"

and saved in, made it executable and upon running it in bash shell I again got the similar error, i.e. :

./abaquscae.sh: 2: ./abaquscae.sh: XLIB_SKIP_ARGB_VISUALS=1 abaqus cae: not found

Now I am totally lost, I have tried many tricks e.g.

1- removing commas in the bash script,

2- making it dos2unix,

3- using full path to the executable

but this script is not running through bash terminal.

PROBLEM:

The command (as well as its alias) are work fine in the bash terminal, however when they are run through some other channel (e.g. scripts/launchers) the terminal miserably fails to recognize them :( ..

If any expert has advice/information about how to solve this problem, please share. I will be very thankful.

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kilusy

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answered 3 Years ago fertion · Accepted Answer

I think the script should be like this:

#!/bin/bash

XLIB_SKIP_ARGB_VISUALS=1 /opt/softwaresname/abaqus cae

You can also create the launcher using the following command:

bash -c 'XLIB_SKIP_ARGB_VISUALS=1 /opt/softwaresname/abaqus cae'

Setting environment variables before the executable file name in a command line is a feature of CLI (Command Line Interface) shells. If you put VARIABLE=value /path/to/executable in a launcher, the program that reads the launcher (and effectively launch the executable) will try to find a file named "VARIABLE=value" and, of course, will fail.

That command launches bash, the default user shell in Ubuntu, and tell it to execute (the -c option) the string "XLIB_SKIP_ARGB_VISUALS=1 /opt/softwaresname/abaqus cae", so it will be interpreted like it is when you type that in the CLI.