unix Archives - Page 14 of 19

Equivalent of *Nix ‘which’ command in PowerShell?

How do I ask PowerShell where something is? For instance, “which notepad” and it returns the directory where the notepad.exe is run from ...

May 3, 2022
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Linux: copy and create destination dir if it does not exist

I want a command (or probably an option to cp) that creates the destination directory if it does not exist. Example: cp -? ...

May 3, 2022
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How can I assign a name for a screen? [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question ...

May 3, 2022
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What are .a and .so files?

I’m currently trying to port a C application to AIX and am getting confused. What are .a and .so files and how are ...

May 3, 2022
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What’s a concise way to check that environment variables are set in a Unix shell script?

I’ve got a few Unix shell scripts where I need to check that certain environment variables are set before I start doing stuff, ...

May 3, 2022
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What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?

In the header of a Bash script, what’s the difference between those two statements: #!/usr/bin/env bash #!/usr/bin/bash When I consulted the env man ...

May 2, 2022
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Restarting cron after changing crontab file? [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question ...

May 2, 2022
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Aborting a shell script if any command returns a non-zero value

I have a Bash shell script that invokes a number of commands. I would like to have the shell script automatically exit with ...

May 2, 2022
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What are file descriptors, explained in simple terms?

What would be a more simplified description of file descriptors compared to Wikipedia’s? Why are they required? Say, take shell processes as an ...

May 2, 2022
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How to run a shell script on a Unix console or Mac terminal?

I know it, forget it and relearn it again. Time to write it down. 7 s 7 To run a non-executable sh script, ...

May 1, 2022
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