Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. It's 100% free, no registration required.

Sign up

Here's how it works:

Anybody can ask a question
Anybody can answer
The best answers are voted up and rise to the top

Top Questions

active 3featured hot week month

2

votes

1

answer

23

views

Explanation for 'sed'

sed regular-expression

modified 9 mins ago Rui F Ribeiro 2,026

4

votes

3

answers

40

views

Why are programs not distributed in compiled format?

linux ubuntu make elf

answered 32 mins ago Facundo Victor 381

0

votes

0

answers

11

views

Nawk script help needed

scripting

asked 1 hour ago NOOB 11

-2

votes

0

answers

22

views

Find occurances of words containing @in each line

shell-script

asked 2 hours ago sasidharan 1

1

vote

2

answers

19

views

Why running command as sudo returns command not found?

command-line permissions

modified 3 hours ago Thomas Dickey 4,392

0

votes

1

answer

16

views

Automate textual input to a command from a bash script

bash shell-script

modified 2 hours ago cas 14.6k

0

votes

2

answers

22

views

(standard_in) illegal character when looping through a for loop

bash proc

modified 7 mins ago cas 14.6k

2

votes

4

answers

196

views

Interactively add arguments line-by-line in bash

bash shell command-line clipboard

modified 4 hours ago Gilles 304k

-1

votes

0

answers

14

views

How can i Fix my media players?

ubuntu linux-mint qt mplayer

modified 3 hours ago Mohamed Slama 1

1

vote

2

answers

54

views

How to display each day of a month on a separate line using tr, sed and cal

sed tr cal

answered 8 hours ago Thomas Dickey 4,392

1

vote

0

answers

11

views

How does an OS detect an access to random memory address of a compiled program? [on hold]

linux process linux-kernel virtual-memory

asked 5 hours ago xealits 324

0

votes

0

answers

17

views

How to display the total number of fields in the file, excluding the first and last fields of each line.

scripting

asked 6 hours ago NOOB 11

1

vote

1

answer

17

views

Displaying a file in another file [on hold]

files sed

modified 5 hours ago NOOBCAKE 11

1

vote

1

answer

19

views

date: Getting next certain hour

date string timestamps time

answered 6 hours ago cas 14.6k

0

votes

1

answer

16

views

How to write a nawk script that prints out all except the blank lines and displays the total number of blank lines?

scripting

answered 7 hours ago muru 12.3k

1

vote

3

answers

101

views

Duplicate indexes value in array

text-processing awk array

answered 3 hours ago Wildcard 1,302

6

votes

1

answer

61

views

Why does a while loop stop after being suspended?

bash shell signals background-process

modified 4 hours ago Gilles 304k

-1

votes

1

answer

17

views

Cron does not execute my Python script

cron python

modified 6 hours ago dhag 4,660

2

votes

5

answers

108

views

List (or move) only files with a certain number of lines?

files grep find mv wc

modified 3 hours ago mikeserv 28.7k

1

vote

1

answer

18

views

How to find what processes run by the user right now?

linux fedora process users

answered 8 hours ago heemayl 6,754

0

votes

1

answer

18

views

how to set a variable to multiple values with awk?

awk

answered 7 hours ago glenn jackman 27.5k

0

votes

1

answer

20

views

Display only records if the value in the last column ends with a 4

sed

modified 9 hours ago heemayl 6,754

0

votes

0

answers

16

views

ffmpeg output.mp4 with size 0

php ffmpeg video-encoding video-editing

modified 6 hours ago Quetool 18

1

vote

2

answers

24

views

How can I find all the files whose name starts with “tty” in the /dev directory with all the file informations?

tty

modified 8 hours ago Xamsa Abdul 11

3

votes

1

answer

28

views

Why the kernel kills my process with disown when I logout?

bash shell background-process

modified 10 hours ago schily 2,938

0

votes

0

answers

14

views

Syntax error for a script that will enter two numbers and echo an output?

shell-script

asked 7 hours ago Jake26x 1

0

votes

2

answers

38

views

Find the number of all typed commands which include a string , using grep

bash shell-script grep

modified 11 hours ago Thomas Dickey 4,392

0

votes

1

answer

11

views

May I delete all the files created by HPLIP installer after successful installation?

hplip

answered 7 hours ago iambryan 111

0

votes

0

answers

20

views

Ghost user? A user doesn't show up on the login screen nor in “users” command

linux-mint users

asked 9 hours ago 0x60 1

2

votes

0

answers

20

views

Having a computer act as a virtual USB slave device rather than as a host

usb

modified 8 hours ago AJ Quad 11

2

votes

3

answers

57

views

How to list all linux processes that had any network activity during some period of time (past or future)?

linux networking monitoring processes

modified 4 hours ago Gilles 304k

0

votes

2

answers

36

views

Find and list a modified date and time of a file

linux

modified 11 hours ago gogoud 1,053

0

votes

1

answer

19

views

View current kernel parameters?

kernel sysctl kernel-parameters perf-event

answered 10 hours ago Petro 96

1

vote

2

answers

49

views

Grep from a line to a line [on hold]

grep

modified 10 hours ago muru 12.3k

3

votes

4

answers

49

views

How do I create a text file (1 gigabyte) containg random characters with UTF-8 character encoding?

files unicode text random

modified 12 hours ago Stéphane Chazelas 133k

1

vote

1

answer

23

views

HTTPS not working on CentOS Apache 2.4

centos ssl httpd

answered 12 hours ago ostendali 31

1

vote

1

answer

14

views

Openbsd: is safe to delete src?

openbsd

answered 9 hours ago J.F. 1,630

1

vote

2

answers

106

views

Not able to schedule tasks in crontab

linux cron vi

modified 19 hours ago cas 14.6k

2

votes

2

answers

33

views

Print common lines between two files along with their line numbers in those files

text-processing join

modified 8 hours ago don_crissti 19k

2

votes

3

answers

36

views

__git_ps1 (current branch) in bash prompt is always out of date somehow

bash prompt

modified 3 hours ago BinaryZebra 1,194

0

votes

1

answer

21

views

set a BASH variable equal to the output from 'top' command? [on hold]

bash

answered 12 hours ago Thomas Dickey 4,392

0

votes

0

answers

17

views

Whats diference between ${X} and $X [on hold]

shell-script

asked 12 hours ago Filipe 101

0

votes

3

answers

35

views

How to get `pwd` in the shell script that was started by another shell script [on hold]

shell-script pwd

modified 14 hours ago mikeserv 28.7k

2

votes

1

answer

13

views

Is it safe to interrupt an upgrade process from Fedora 22 to 23 using dnf?

fedora upgrade dnf

answered 12 hours ago ostendali 31

0

votes

1

answer

12

views

Cannot mount RAID 5 disks

mount raid5

answered 11 hours ago ostendali 31

1

vote

3

answers

60

views

Split multi paragraphed shell output to multiple variables

shell shell-script

modified 6 hours ago mikeserv 28.7k

0

votes

2

answers

21

views

apache basic authenticaion

apache authentication

modified 13 hours ago lese 987

Looking for more? Browse the complete list of questions, or popular tags. Help us answer unanswered questions.

hot questions feed

Technology			Life / Arts	Culture / Recreation	Science	Other
Stack Overflow Server Fault Super User Web Applications Ask Ubuntu Webmasters Game Development TeX - LaTeX	Programmers Unix & Linux Ask Different (Apple) WordPress Development Geographic Information Systems Electrical Engineering Android Enthusiasts Information Security	Database Administrators Drupal Answers SharePoint User Experience Mathematica Salesforce ExpressionEngine® Answers more (13)	Photography Science Fiction & Fantasy Graphic Design Movies & TV Seasoned Advice (cooking) Home Improvement Personal Finance & Money Academia more (9)	English Language & Usage Skeptics Mi Yodeya (Judaism) Travel Christianity Arqade (gaming) Bicycles Role-playing Games more (21)	Mathematics Cross Validated (stats) Theoretical Computer Science Physics MathOverflow Chemistry Biology more (5)	Stack Apps Meta Stack Exchange Area 51 Stack Overflow Careers

site design / logo © 2015 Stack Exchange Inc; user contributions licensed under cc by-sa 3.0 with attribution required

rev 2015.11.26.3034

Linux is a registered trademark of Linus Torvalds. UNIX is a registered trademark of The Open Group.
This site is not affiliated with Linus Torvalds or The Open Group in any way.

Unix & Linux Stack Exchange works best with JavaScript enabled