User muru - Unix & Linux Stack Exchange

61 votes

3 answers

16k views

How can I expand a quoted variable to nothing if it's empty?

asked Jan 10, 2018 at 6:44

33 votes

3 answers

20k views

How does the /proc/<pid>/exe symlink differ from ordinary symlinks?

asked Apr 22, 2015 at 11:08

26 votes

3 answers

3k views

When can I use a temporary IFS for field splitting?

asked Feb 20, 2016 at 20:27

21 votes

2 answers

8k views

Bash -c with positional parameters

asked Aug 27, 2014 at 10:11

20 votes

4 answers

8k views

Get PID of any command in backgrounded piped sequence of commands

asked Sep 18, 2014 at 0:07

18 votes

3 answers

9k views

How can I un-export a variable, without losing its value?

asked Jan 1, 2016 at 20:45

17 votes

3 answers

13k views

Can I get SSH to use an askpass program even if it was run from a terminal?

asked Mar 27, 2016 at 20:34

16 votes

3 answers

6k views

How do I do an N-way diff?

asked Dec 24, 2014 at 13:56

14 votes

3 answers

14k views

Is cmp faster than diff -q?

asked Sep 2, 2014 at 9:14

11 votes

1 answer

672 views

Why does nullglob affect tab completion?

asked Apr 16, 2016 at 18:55

11 votes

3 answers

10k views

How do I disable I2C Designware support when it's not built as a module?

asked Feb 13, 2018 at 10:43

9 votes

1 answer

2k views

How do I generate manpages using escape codes for bold, etc.?

asked Nov 18, 2015 at 20:45

8 votes

3 answers

16k views

How do I set up bind mounts on startup correctly in the systemd world?

asked Jul 15, 2015 at 20:58

8 votes

3 answers

4k views

Delaying kernel upgrades on Arch Linux

asked Oct 27, 2014 at 15:17

8 votes

2 answers

7k views

How do I background a systemd-nspawn container?

asked Jun 21, 2015 at 23:41

6 votes

2 answers

2k views

How do I convert inputrc settings to bashrc ones?

asked Sep 24, 2015 at 4:49

6 votes

1 answer

2k views

Why and when does `lsblk` require `sudo`?

asked Jun 19, 2015 at 18:54

6 votes

1 answer

3k views

What's the intended use case for COMPLETE_ALIASES in zsh?

asked Dec 18, 2015 at 22:04

6 votes

2 answers

404 views

How do I avoid the leaning toothpick syndrome in awk?

asked Apr 19, 2017 at 2:45

5 votes

0 answers

987 views

How can I mass-set the permissions of existing files in the new ntfs3 driver?

asked Nov 24, 2021 at 12:40

5 votes

2 answers

739 views

Is the output of `declare -p <variable>` in bash guaranteed to be reusable as shell input?

asked Feb 15, 2024 at 4:22

5 votes

2 answers

6k views

What's the zsh way to read n characters from stdin?

asked Jan 23, 2017 at 12:59

5 votes

1 answer

2k views

How can I detect if a system is running inside a systemd-nspawn container?

asked Apr 5, 2015 at 7:33

5 votes

1 answer

6k views

What are the default Polkit privileges on Arch Linux for shutdown, halt, etc., and why are they so?

asked Jun 15, 2015 at 10:45

5 votes

1 answer

2k views

How do I safely get multiple filenames from Zenity?

asked Feb 7, 2015 at 17:56

4 votes

1 answer

2k views

How do I make Terminator gain focus on un-hiding?

asked Mar 14, 2015 at 3:51

4 votes

0 answers

107 views

How do I exit coasting when a key is pressed?

asked Jul 5, 2015 at 14:33

4 votes

2 answers

1k views

Is it possible to "protect" an IFS character from field splitting?

asked Oct 24, 2016 at 5:50

3 votes

1 answer

1k views

How do I detect which device was recently created by pppd?

asked Apr 26, 2015 at 6:06

3 votes

3 answers

8k views

How do I detect running processes using a library package?

asked Jan 28, 2015 at 23:19

Stack Exchange Network

42 Questions

How can I expand a quoted variable to nothing if it's empty?

How does the /proc/<pid>/exe symlink differ from ordinary symlinks?

When can I use a temporary IFS for field splitting?

Bash -c with positional parameters

Get PID of any command in backgrounded piped sequence of commands

How can I un-export a variable, without losing its value?

Can I get SSH to use an askpass program even if it was run from a terminal?

How do I do an N-way diff?

Is cmp faster than diff -q?

Why does nullglob affect tab completion?

How do I disable I2C Designware support when it's not built as a module?

How do I generate manpages using escape codes for bold, etc.?

How do I set up bind mounts on startup correctly in the systemd world?

Delaying kernel upgrades on Arch Linux

How do I background a systemd-nspawn container?

How do I convert inputrc settings to bashrc ones?

Why and when does `lsblk` require `sudo`?

What's the intended use case for COMPLETE_ALIASES in zsh?

How do I avoid the leaning toothpick syndrome in awk?

How can I mass-set the permissions of existing files in the new ntfs3 driver?

Is the output of `declare -p <variable>` in bash guaranteed to be reusable as shell input?

What's the zsh way to read n characters from stdin?

How can I detect if a system is running inside a systemd-nspawn container?

What are the default Polkit privileges on Arch Linux for shutdown, halt, etc., and why are they so?

How do I safely get multiple filenames from Zenity?

How do I make Terminator gain focus on un-hiding?

How do I exit coasting when a key is pressed?

Is it possible to "protect" an IFS character from field splitting?

How do I detect which device was recently created by pppd?

How do I detect running processes using a library package?