User yael

103 votes

9 answers

268k views

What are the alternatives for checking open ports, besides telnet?

asked Nov 4, 2018 at 10:25

56 votes

4 answers

36k views

How do I find the line number in Bash when an error occured?

asked Aug 12, 2018 at 17:18

43 votes

7 answers

79k views

How to count the times a specific character appears in a file?

asked Aug 22, 2017 at 12:32

31 votes

2 answers

30k views

how to replace file extension

asked Dec 17, 2018 at 11:23

29 votes

4 answers

50k views

Create unique random numbers (UUIDs) in bash

asked Feb 14, 2019 at 9:34

26 votes

5 answers

30k views

how to shift array value in bash

asked Dec 31, 2017 at 13:28

23 votes

1 answer

30k views

How to perform chown and chgrp in one command

asked Aug 3, 2017 at 15:49

21 votes

5 answers

12k views

renaming a huge folder: is it risky?

asked Sep 24, 2017 at 16:56

18 votes

2 answers

18k views

Match with grep when pattern contains hyphen "-"

asked Aug 28, 2017 at 17:19

16 votes

3 answers

58k views

systemctl + what is the meaning of Restart=always

asked Mar 22, 2019 at 8:42

15 votes

1 answer

46k views

Is it possible to run fsck to only see errors on mounted disk

asked Apr 24, 2018 at 8:26

14 votes

2 answers

78k views

LVM + Couldn't create temporary archive name

asked Aug 31, 2017 at 15:16

14 votes

8 answers

18k views

How to test if array elements are all equal in bash?

asked Dec 25, 2017 at 10:28

14 votes

3 answers

11k views

sum all numbers from "du"

asked Feb 28, 2019 at 17:51

13 votes

3 answers

68k views

print line only if number in third field is greater than X [duplicate]

asked Oct 2, 2017 at 8:14

12 votes

7 answers

18k views

Opposite of the `source` command

asked Dec 30, 2017 at 19:31

11 votes

4 answers

82k views

bash + how to calculate percentage from number [duplicate]

asked Jan 31, 2018 at 20:56

10 votes

5 answers

4k views

awk/sed/perl one liner + how to print only the properties lines from json file

asked May 27, 2018 at 14:40

10 votes

3 answers

13k views

Why does this 'while' loop not recognize the last line?

asked Nov 18, 2018 at 11:46

10 votes

2 answers

23k views

What is the right approach to purge /var/spool/abrt/

asked Dec 9, 2019 at 12:19

9 votes

2 answers

20k views

redhat 7 + How to stop systemctl service permanent

asked Mar 13, 2019 at 22:08

9 votes

3 answers

6k views

How to capture the first IP address from a ifconfig command?

asked Feb 27, 2018 at 9:12

9 votes

1 answer

50k views

jq + how to print only the value of key under properties

asked Aug 2, 2018 at 11:51

9 votes

3 answers

6k views

How can I remove the last comma separator from the end of a file?

asked Jun 3, 2018 at 12:58

9 votes

4 answers

46k views

How to match words and ignore multiple spaces?

asked Aug 28, 2017 at 5:29

9 votes

3 answers

27k views

How to check if file is empty or it has only blank characters?

asked Aug 16, 2017 at 18:14

9 votes

3 answers

20k views

How to match a string containing the character "$" with grep?

asked Aug 21, 2017 at 12:13

8 votes

2 answers

34k views

bash - case-insensitive matching of variable

asked Oct 2, 2017 at 16:09

8 votes

2 answers

8k views

bash + how to exit from secondary script and from the main script on both time

asked Jan 16, 2018 at 12:57

8 votes

2 answers

7k views

how to convert text file to json string (replace newlines with "\n")

asked Aug 2, 2018 at 13:03

Stack Exchange Network

670 Questions

What are the alternatives for checking open ports, besides telnet?

How do I find the line number in Bash when an error occured?

How to count the times a specific character appears in a file?

how to replace file extension

Create unique random numbers (UUIDs) in bash

how to shift array value in bash

How to perform chown and chgrp in one command

renaming a huge folder: is it risky?

Match with grep when pattern contains hyphen "-"

systemctl + what is the meaning of Restart=always

Is it possible to run fsck to only see errors on mounted disk

LVM + Couldn't create temporary archive name

How to test if array elements are all equal in bash?

sum all numbers from "du"

print line only if number in third field is greater than X [duplicate]

Opposite of the `source` command

bash + how to calculate percentage from number [duplicate]

awk/sed/perl one liner + how to print only the properties lines from json file

Why does this 'while' loop not recognize the last line?

What is the right approach to purge /var/spool/abrt/

redhat 7 + How to stop systemctl service permanent

How to capture the first IP address from a ifconfig command?

jq + how to print only the value of key under properties

How can I remove the last comma separator from the end of a file?

How to match words and ignore multiple spaces?

How to check if file is empty or it has only blank characters?

How to match a string containing the character "$" with grep?

bash - case-insensitive matching of variable

bash + how to exit from secondary script and from the main script on both time

how to convert text file to json string (replace newlines with "\n")