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101

votes

11

answers

22k

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Does cd . have use?

cd-command

modified Jan 29 at 14:18 Rolf 515

22

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6

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3k

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grep

modified Feb 1 at 14:09 Stéphane Chazelas 306k

38

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6

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2k

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linux memory swap

modified Feb 15 at 13:28 Philip Couling 1,101

23

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8

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2k

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modified Feb 4 at 4:02 agc 4,711

11

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8

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2k

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grep

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11

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3

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2k

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grep regular-expression

modified Feb 12 at 22:06 Kusalananda 131k

14

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8

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3k

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Linux shell script: Run a program only if it exists, ignore it if it does not exist

shell scripting executable

modified Feb 11 at 17:49 rrauenza 429

28

votes

1

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2k

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Inconsistent color output from `ls` command

linux command-line ls colors

modified Feb 11 at 11:49 Old Pro 587

22

votes

4

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2k

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bash shell quoting variable test

modified Feb 17 at 0:15 Jeff Schaller 41.7k

13

votes

6

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2k

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modified Jan 25 at 17:06 Stéphane Chazelas 306k

11

votes

3

answers

1k

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What does 's=.*/==' do in sed? [closed]

sed

modified Jan 23 at 12:31 msp9011 4,369

12

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3

answers

3k

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I see pids above 400,000 why is that? Does it indicate something is wrong?

process

modified Feb 14 at 10:46 user5352090 64

15

votes

5

answers

677

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Subtract time using date and bash

date gnu

modified Jan 31 at 17:28 mr.spuratic 6,981

12

votes

1

answer

1k

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bash shell-script path executable strace

modified Feb 6 at 1:35 ivan_pozdeev 366

10

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2

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2k

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Why pwd does not accept long options like --physical?

bash rhel pwd

modified Jan 21 at 15:13 wjandrea 498

14

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2

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2k

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Does a computer system (Linux) only have one host name?

linux hostname

modified Feb 12 at 19:51 ilkkachu 59.4k

18

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1

answer

1k

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Why does ${$#} return same result as $$ in the shell?

shell variable

modified Feb 13 at 13:41 Jeff Schaller 41.7k

7

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2

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1k

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gcc - unknown switches (absent also from the manpage)

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modified Feb 14 at 17:49 Jeff Schaller 41.7k

18

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2

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1k

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Why does POSIX require certain shell built-ins to have an external implementation?

shell posix shell-builtin

modified Feb 1 at 5:13 mosvy 7,642

9

votes

3

answers

1k

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How do `/etc/hosts` and DNS work together to resolve hostnames to IP addresses?

linux dns hosts host-name-resolution

modified Feb 11 at 21:39 Isaac 11.9k

14

votes

4

answers

744

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Precedence of Pipe (|) and logical and (&&) in bash

bash

modified Jan 29 at 23:47 Sergiy Kolodyazhnyy 10.3k

7

votes

3

answers

585

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bash shell-script configuration shopt

modified Feb 5 at 18:12 TheDudeAbides 170

6

votes

4

answers

775

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how to list all python test scripts that contain “def test” [closed]

grep find

modified Feb 13 at 15:56 Kam Mok 31

4

votes

6

answers

671

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bash shell-script text-processing numeric-data

answered 6 hours ago Jakub Jindra 126

6

votes

3

answers

519

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Is there a single program version of inetd?

services inetd

modified Feb 15 at 14:12 JdeBP 35.1k

8

votes

1

answer

1k

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How different is compiling source code in Debian GNU/Hurd from Debian GNU/Linux?

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modified Feb 7 at 5:30 Pavel Sayekat 245

3

votes

3

answers

448

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modified Feb 16 at 10:33 Kusalananda 131k

10

votes

3

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605

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modified Jan 22 at 0:45 Jeff Schaller 41.7k

6

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4

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755

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How to find only directories without subdirectories? [closed]

linux shell-script find ls directory-structure

modified Jan 29 at 7:49 Bodo 1,504

9

votes

2

answers

585

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Do typical system call interfaces allow reducing the size of a file (without replacing it with a different inode)?

files filesystems

modified Jan 24 at 15:04 David Foerster 1,019

3

votes

2

answers

740

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Linux command that spawns multiple processes

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answered Feb 1 at 16:23 TooTea 669

6

votes

2

answers

878

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Create unique random numbers (UUIDs) in bash

linux bash shell-script random uuid

modified Feb 14 at 13:30 Haxiel 2,750

13

votes

3

answers

484

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Slightly confused about whether printf in the yash shell is a built-in command or not

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modified Jan 25 at 2:05 Isaac 11.9k

6

votes

4

answers

356

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awk regular-expression gawk mawk

modified yesterday Jeff Schaller 41.7k

4

votes

4

answers

388

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How to show user's name based on uid

linux bash shell

answered Jan 27 at 6:54 Isaac 11.9k

10

votes

2

answers

487

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How to keep colored output using sed

sed osx pipe ls colors

modified Jan 29 at 13:43 terdon♦ 131k

7

votes

2

answers

436

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Multiline command : comment out one line

shell-script shell scripting

modified Feb 6 at 16:07 jimmij 31.7k

4

votes

5

answers

247

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group lines according to first word

text-processing awk sed grep

answered Jan 26 at 11:01 Rakesh Sharma 33

2

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3

answers

635

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shell quoting cat

modified Feb 12 at 20:10 Peter Mortensen 907

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3

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567

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bash brace-expansion

answered Feb 11 at 14:17 ilkkachu 59.4k

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3

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737

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cp works differently on a Mac

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416

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modified Jan 23 at 13:06 Kusalananda 131k

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487

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unexpected behaviour in shell command substitution

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modified Feb 4 at 15:01 msp9011 4,369

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votes

1

answer

578

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bash

modified Feb 12 at 21:05 Kusalananda 131k

8

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2

answers

346

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answered Feb 4 at 11:01 David Foerster 1,019

5

votes

2

answers

544

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What method does unzip use to find a single file in an archive?

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modified Jan 30 at 21:19 Thomas Dickey 53.3k

9

votes

1

answer

379

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What does the substitution ${!var_name+x} mean?

bash shell-script variable-substitution

modified yesterday Stéphane Chazelas 306k

6

votes

2

answers

240

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Restarting systemd service only as a specific user?

systemd sudo access-control polkit

modified Jan 27 at 16:09 Thomas 3,951

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