I can do the following in bash: output=`command` retcode=$? Is there any way to do the same in Perl? Something like this: $output=`command` $retcode=???

I'd like to return an exit code from a BASH script that is called within another script, but could also be called directly. It roughly looks like this: #!/bin/bash dq2-get $1 if [ $? -ne 0 ]; then...

I am trying to return error code from constructor, since constructor does not return an error code, I tried to put an exception on the constructor. Then in the catch block I return my appropriate e...

I am trying to identify what in a .log file makes a specific task marked as "Successful" vs "Failure" in airflow. I am getting the sense that this is dependent upon the operator (PythonOperator vs ...

I was wondering whether set -e propagates through subshells (i.e. does a subshell inherit the -e setting of its parent), so I made some experiments. I found some strange results that I can't explai...

I use subprocess.check_output a number of times in a script of mine, but I just ran into an issue with an external application. OpenVPN in this case. When openvpn is called with the --help paramet...

I want to know if a given filter succeeds in pulling data from a JSON data structure. For example: ###### For the user steve... % Name=steve % jq -j --arg Name "$Name" '.[]|select(.user == $Name)...

Suppose I'm using a shell like bash or zsh, and also suppose that I have a command which writes to stdout. I want to capture the output of the command into a shell variable, and also to capture the...

I am running on *nix based OS's and have a script that initiates multiple processes concurrently. The main goal for me is to initiate these processes concurrently, and gather the returned exit stat...

I just came across a very strange line of code in Python: .... self.myReturnCode = externalProcessPopen.returncode .... .... return not self.myReturnCode .... What exactly return not stands for?...

I can't get ExitCode to work for a VCL forms application. Here is my test application. It was created from the File / New menu in the Delphi 2007 IDE. The only change is that I added the line ExitC...

I have a Perl script that will execute three applications. All of it have different exit code status. First application exit code status is 1. The application exited normally without any problem. ...

I am running a multiprogrammed workload (based on SPEC CPU2006 benchmarks) on a POWER7 system using SUSE SLES 11. Sometimes, each application in the workload consumes a significant amount of memory...

Sometimes I run a command in cmd such as: fc /b file1 file2 and would like to see the return code from fc. Is there a simple way to do this?

Possible Duplicate: How do I get the application exit code from a Windows command line? In Unix/bash, I can simply say: $ echo $? to find out the return/exit code of a program, b...

My question is pretty vague :o) - But here is an example : When I was writing C code, I was able to log counter's value when something failed : <...> for ( int i = 0 ; i < n ; i++ ) i...