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Tag: Bash

How to test whether a user already exist on Linux?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to test whether a user already exist on Linux?

How to move cursor to a specific byte in Vim?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to move cursor to a specific byte in Vim?

How to get a user’s home directory from the username in a variables in Bash?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to get a user’s home directory from the username in a variables in Bash?

Linux boots failed with “sulogin: can not open password database” while the /etc/passwd and /etc/shadow files look fine

By Eric Ma | In QA | Updated on Mar 24, 2018
> Linux boots failed with “sulogin: can not open password database” while the /etc/passwd and /etc/shadow files look fine

How to sort lines by length in Linux?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to sort lines by length in Linux?

How to do “contains string” test in Bash?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to do “contains string” test in Bash?

How to remove trailing / in path in Bash?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to remove trailing / in path in Bash?

How to get a script’s directory reliably in Bash on Linux?

By Eric Ma | In QA | Updated on Oct 7, 2019
> How to get a script’s directory reliably in Bash on Linux?

Why does ; after & lead to unexpected token error in bash on Linux?

By Eric Ma | In QA | Updated on Mar 24, 2018
> Why does ; after & lead to unexpected token error in bash on Linux?

How to use the xargs argument twice in the command on Linux?

By Eric Ma | In QA | Updated on Oct 27, 2019
> How to use the xargs argument twice in the command on Linux?

How to manually kill HDFS DataNodes?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to manually kill HDFS DataNodes?

How to watch a directory size in Linux Shell

By Weiwei Jia | In QA | Updated on Jan 7, 2020
> How to watch a directory size in Linux Shell

How to keep master thesis safety and availability on Windows

By Weiwei Jia | In QA | Updated on Jan 7, 2020
> How to keep master thesis safety and availability on Windows

How to merge sam files on Linux?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to merge sam files on Linux?

How to cut by multiple spaces in Linux?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to cut by multiple spaces in Linux?

How to detect whether Linux runs in UEFI or BIOS mode inside the Linux?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to detect whether Linux runs in UEFI or BIOS mode inside the Linux?

How to test whether the git repository is dirty?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to test whether the git repository is dirty?

How to force umount a NFS directory on Linux?

By Eric Ma | In QA | Updated on Oct 7, 2019
> How to force umount a NFS directory on Linux?

How to enable SSH service on Fedora Linux?

By Eric Ma | In QA | Updated on Oct 7, 2019
> How to enable SSH service on Fedora Linux?

How to merge 2 .a libraries to one .a library on Linux?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to merge 2 .a libraries to one .a library on Linux?
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