Hottest Questions This Month

22 votes

3 answers

6k views

I lost files by using the "mv" command and I don't know where they are!

Kaz

6,656

modified Apr 26 at 14:48

12 votes

8 answers

1k views

How can I replace a character within a specific context in each line of the whole file?

text-processing replace

jubilatious1

1,098

modified May 6 at 2:26

12 votes

4 answers

1k views

Delete a file called '.env'$'\r'

filenames rm delete

DefenestrationDay

237

modified 20 hours ago

18 votes

4 answers

2k views

What's the POSIX-compliant way to get the epoch timestamp in a shell?

shell-script date posix timestamps time

R.. GitHub STOP HELPING ICE

2,758

answered 2 days ago

27 votes

2 answers

2k views

When using cat to create file, I have to type ctrl+d twice to finish the input, is this expected? [duplicate]

cat newlines

ilkkachu

115k

modified May 5 at 8:44

16 votes

2 answers

2k views

Are there security consequences from not giving printf a format to use?

shell security printf

Kusalananda♦

267k

modified May 1 at 19:43

8 votes

6 answers

2k views

Completely lock user account on server, including ssh

ssh accounts usermod

Michael Angel P.

150

modified May 2 at 1:14

13 votes

1 answer

1k views

Why is echo -e behaving weird in a Makefile?

echo gnu-make

Stéphane Chazelas

466k

modified Apr 29 at 6:36

11 votes

2 answers

1k views

Is there a file besides /etc/passwd that contains/defines my UID?

uid

Stéphane Chazelas

466k

modified May 13 at 8:08

4 votes

3 answers

911 views

Why are the signal lists for kill, killall and pkill not the same?

linux kill signals options pkill

John Kugelman

2,009

modified May 17 at 13:29

5 votes

4 answers

702 views

Shellcheck approved way to pass 2 arguments in one variable, to a command in a bash script

bash shell-script shellcheck

ilkkachu

115k

modified May 19 at 16:16

2 votes

8 answers

306 views

awk filter rows that only consist a single letter

bash shell awk sed

guest_7

5,333

answered May 17 at 6:22

5 votes

3 answers

571 views

bash + how to compare arg to one of the disks in linux machine

bash grep lsblk

Kusalananda♦

267k

modified May 11 at 12:24

4 votes

1 answer

2k views

Why is zsh listening on port 22?

zsh sshd socket

Kusalananda♦

267k

modified Apr 24 at 6:15

2 votes

3 answers

552 views

How to set "[}" or "[)" as FS for gawk?

awk

Kusalananda♦

267k

modified May 8 at 13:33

5 votes

2 answers

649 views

How do I tell which partition I booted from?

linux fdisk lsblk

telcoM

66.8k

modified May 6 at 7:45

8 votes

2 answers

1k views

In bash, how do I get the index of the last element of an array without a loop

bash array

Kusalananda♦

267k

modified May 2 at 14:10

7 votes

4 answers

653 views

Save file changes if you forgot to use sudo [duplicate]

command-line sudo nano

Black

1,708

modified Apr 26 at 9:25

3 votes

6 answers

483 views

Convert the first letter of all "."-separated parts of a filename to uppercase except for the last one in Mac Bash

bash text-processing macos

AdminBee

18.4k

modified May 13 at 13:26

5 votes

5 answers

368 views

If column has multiple values, copy line with each value separately

text-processing awk sed text-formatting

guest_7

5,333

modified May 1 at 20:40

3 votes

6 answers

324 views

Swap lines in a file

linux text-processing

jubilatious1

1,098

modified May 16 at 18:02

7 votes

1 answer

521 views

How is awk doing comparison in this case?

awk

ilkkachu

115k

modified Apr 27 at 9:37

10 votes

1 answer

595 views

Different behaviour of subshells and && in bash vs zsh

bash zsh subshell

ilkkachu

115k

answered May 8 at 13:37

4 votes

2 answers

504 views

Bash script segmentation fault

bash segmentation-fault

ilkkachu

115k

modified May 16 at 21:13

5 votes

2 answers

460 views

Different behavior between SSH into VM and running SSH commands from script

bash debian ssh

LSerni

4,049

modified 2 days ago

5 votes

3 answers

419 views

POSIX shell comment vs line continuation

shell posix

quasar

51

answered 2 days ago

3 votes

5 answers

269 views

Bash: sed or awk rewrite of numerical sequence

bash awk sed

nezabudka

2,105

modified May 13 at 15:40

4 votes

1 answer

485 views

Using "useradd" command correctly

useradd

Jeff Schaller♦

63k

modified May 2 at 19:00

3 votes

2 answers

312 views

Filtering find results by length

linux find

Stéphane Chazelas

466k

modified May 18 at 5:59

6 votes

1 answer

475 views

What is correct or suggested approach to send the signal name through 'kill' command?

linux kill signals options

Stephen Kitt

354k

modified May 18 at 12:33

5 votes

4 answers

358 views

Convert to uppercase, except for escaped characters

bash escape-characters

G-Man Says 'Reinstate Monica'

20.6k

modified May 9 at 23:15

4 votes

2 answers

405 views

cut /etc/passwd but without colons (:) in the resulting set of fields

text-processing cut

AdminBee

18.4k

modified May 19 at 14:30

3 votes

2 answers

286 views

diff program gives false positive for files with non-ASCII characters in filename

macos diff

LSerni

4,049

modified Apr 30 at 12:52

6 votes

2 answers

459 views

Find all “real” filesystems mounted in a directory tree

mount fstab

ron

4,121

modified May 19 at 15:20

1 vote

3 answers

322 views

What is a command? [closed]

shell command terminology

ilkkachu

115k

modified May 12 at 10:31

4 votes

1 answer

274 views

How to unset an invalid environment variable in bash?

bash environment-variables docker

Stephen Harris

38.8k

modified Apr 23 at 20:08

6 votes

1 answer

258 views

Debian: "dpkg -l" name field sometimes includes arch/abi, sometimes not. Why?

debian dpkg

Stephen Kitt

354k

modified May 17 at 8:10

4 votes

1 answer

254 views

What does the "-d" option of the "read" shell command do when I use it with an empty string as argument?

bash read

ilkkachu

115k

modified May 7 at 19:55

2 votes

2 answers

171 views

tr command unable to process colour output piped from grep

grep macos tr

Stéphane Chazelas

466k

modified 12 hours ago

2 votes

2 answers

168 views

bash count files in path with wildcard and assign to a variable

bash shell-script

Kusalananda♦

267k

modified Apr 27 at 14:33

3 votes

1 answer

215 views

Is my zoneinfo backwards or am I confused

date timezone

telcoM

66.8k

modified Apr 28 at 5:19

-2 votes

4 answers

126 views

sed or awk: replace only the n-th occurence of a string

bash awk sed

Roel Van de Paar

204

modified May 16 at 23:07

2 votes

2 answers

254 views

find files matching pattern inside directory matching another pattern

find

steeldriver

72.1k

answered May 11 at 23:56

3 votes

1 answer

316 views

What is the link between g++ and gcc-c++ in Fedora's DNF repositories?

fedora dnf

larsks

24.1k

answered May 6 at 0:58

3 votes

1 answer

146 views

Handle names with spaces when iterating recursively over files [duplicate]

bash find filenames recursive

Kusalananda♦

267k

modified Apr 29 at 19:59

2 votes

1 answer

257 views

Prevent shell script from hanging on a line

shell-script centos disk-usage timeout

cas

66.6k

modified May 10 at 4:06

3 votes

1 answer

224 views

Portable Linux emulator on Windows?

cygwin windows-subsystem-for-linux portability

Stephen Kitt

354k

modified May 7 at 8:05

0 votes

1 answer

918 views

Enable Wayland in PopOS 22.04

gnome nvidia wayland pop-os

AdminBee

18.4k

modified May 3 at 14:12

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