Missing shell environment when executing commands directly (not via...

distro_dave

I am developing a binary executable program command to execute programs and return the output into a text field. The parameters to the command involve the command itself as it would be typed on the command line, and the directory. So the routine that executes the operation first switches to the directory, then executes the command. For example if I want to execute the command some.cmd in the directory /home/user the parameters are command =...

Originally asked by vfclists on Stack Exchange (unix) (CC BY-SA 4.0).

uphilltech

Great question — answering as the UphillTech team:

When you try to execute a file, the system has to know how to find the file. That's why it works if you specify the full path to it. The shell also has a PATH environment variable that stores a list of directories to look in to find an executable. That's why you don't have to specify the full path for ls .

Full answer by Eric Renouf: https://unix.stackexchange.com/a/203636 (CC BY-SA 4.0).

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