Trending questions in Linux Administration

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How do I copy folder with files to another folder in Unix/Linux?

I am having some issues copying a ...READ MORE

Apr 13 in Linux Administration by Soham
• 8,730 points
17 views
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0 answers

What is the difference between a symbolic link and a hard link?

Recently I was asked this during a ...READ MORE

Apr 13 in Linux Administration by Rahul
• 8,980 points
16 views
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1 answer

Chmod 777 to a folder and all contents

To help you with your doubt, if ...READ MORE

Feb 9 in Linux Administration by Rahul
• 8,980 points
310 views
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1 answer

Amazon Linux: apt-get: command not found

Amazon Linux is CentOs-based which means that ...READ MORE

Feb 11 in Linux Administration by Soham
• 8,730 points
162 views
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1 answer

-bash: cd: /root/: Permission denied

Hi@akhtar, You got this error because your user ...READ MORE

Aug 13, 2020 in Linux Administration by MD
• 95,360 points
23,740 views
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2 answers

Job for httpd.service failed because the control process exited with error code.

Hi guys I was facing same problem as ...READ MORE

Nov 21, 2020 in Linux Administration by anonymous
• 140 points
21,309 views
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why can't i go to dev directory

root@localhost:/dev# ls ls: cannot open directory '.': Permission ...READ MORE

Nov 12, 2021 in Linux Administration by anonymous
• 120 points
50 views
0 votes
1 answer

Linux tar: gzip: stdin: unexpected end of file

The error you're getting may be because ...READ MORE

Aug 9, 2019 in Linux Administration by Kunal
32,270 views
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1 answer

What is the difference between ctrl z and ctrl c in command line?

Hi@akhtar, Generally, these two commands are used to ...READ MORE

Feb 24, 2020 in Linux Administration by MD
• 95,360 points
20,402 views
0 votes
2 answers

activation of network connection failed in Linux.

नेटवर्क कनेक्शन चाहिए READ MORE

Aug 18, 2020 in Linux Administration by anonymous
• 140 points
13,023 views
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1 answer

ls: cannot open directory '.': Permission denied

Hi@akhtar, You got this error because your user ...READ MORE

Aug 13, 2020 in Linux Administration by MD
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10,071 views
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2 answers

How do I use a shell script to SSH in to a remote machine to execute commands?

Sorry in advance for any formatting. Check out ...READ MORE

Feb 7, 2021 in Linux Administration by anonymous
13,791 views
0 votes
1 answer

E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/g/git/git-man_2.17.1-1ubuntu0.4_all.deb 404 Not Found [IP: 43.255.166.254 80]

Hi@akhtar, There may be many reasons behind this error. ...READ MORE

Nov 19, 2020 in Linux Administration by MD
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3,176 views
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How to display captured packets in HEX and ASCII in Linux?

Hi@akhtar, To display the packet value you can ...READ MORE

Oct 4, 2020 in Linux Administration by MD
• 95,360 points
4,984 views
+1 vote
1 answer

Failed to start Crash recovery kernel arming.

Hi@akhtar, To avoid this error you can follow ...READ MORE

May 11, 2020 in Linux Administration by MD
• 95,360 points
10,946 views
0 votes
1 answer

I want to swap from AWS to linux.

Hi@Abdullah, Are you talking about swap partition in ...READ MORE

Dec 9, 2020 in Linux Administration by MD
• 95,360 points
173 views
0 votes
1 answer

What is Htpasswd in Linux?

Hi@akhtar, htpasswd is used to create and update ...READ MORE

Dec 2, 2020 in Linux Administration by MD
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350 views
0 votes
1 answer

How to create HTTP user using htpasswd command?

Hi@akhtar, Htpasswd command is available in the Linux ...READ MORE

Dec 2, 2020 in Linux Administration by MD
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310 views
0 votes
1 answer

Could not find a version that satisfies the requirement ipykernel (from jupyter==1.0.0) (from versions: )

Hi@akhtar, You may get this error because of ...READ MORE

Apr 23, 2020 in Linux Administration by MD
• 95,360 points
9,865 views
0 votes
1 answer

How to sort text alphabetically in Linux system?

Hi@akhtar, In the Linux system, you will find ...READ MORE

Oct 20, 2020 in Linux Administration by MD
• 95,360 points
1,982 views
0 votes
1 answer

How to create directory of current username in ruby on Linux server

Hi, The command whoami is used to know ...READ MORE

Nov 25, 2020 in Linux Administration by MD
• 95,360 points
189 views
0 votes
1 answer

How to check permissions of a folder in the Linux system?

Hi@akhtar, You can use ls command to check ...READ MORE

Aug 13, 2020 in Linux Administration by MD
• 95,360 points
4,346 views
0 votes
1 answer

Error saying "Failed to start httpd.service: Unit httpd.service not found."

Execute the following steps or make sure ...READ MORE

May 14, 2019 in Linux Administration by Kiara
23,971 views
0 votes
1 answer

Can we patch azure linux vm using ansible?

Hi@avinash, You can connect your Azure VM from ...READ MORE

Oct 29, 2020 in Linux Administration by akhtar
• 38,230 points
638 views
0 votes
1 answer

How to create nested directories with a single command in linux?

Try this command. mkdir -p /parent_dir/son_dir READ MORE

Oct 19, 2020 in Linux Administration by anonymous
• 19,600 points
967 views
0 votes
1 answer

Copy files from one Linux system to another Linux system.

Hi@akhtar, You can copy your files from one ...READ MORE

Oct 21, 2020 in Linux Administration by MD
• 95,360 points
758 views
0 votes
1 answer

How to run one command inside another command in Linux?

Hi@akhtar, You can run multiple commands in your ...READ MORE

Oct 15, 2020 in Linux Administration by MD
• 95,360 points
773 views
0 votes
1 answer

How to find Resident Set Size of a process in Linux?

Hi@akhtar, RSS is a memory currently used by ...READ MORE

Oct 12, 2020 in Linux Administration by MD
• 95,360 points
650 views
0 votes
1 answer

What is the linux command to find Memory and CPU usage in percent for last 30 days?

Try the following: Cat proc/meminfo top top -i less /proc/memin ...READ MORE

Oct 14, 2020 in Linux Administration by Kim
555 views
0 votes
1 answer

How to find the first field from a file in Bash Shell?

Hi@akhtar, You can extract text from a file. ...READ MORE

Oct 20, 2020 in Linux Administration by MD
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280 views
0 votes
1 answer

Error lscpu: command not found.

Hi@akhtar, By default, this command should present in ...READ MORE

Oct 12, 2020 in Linux Administration by MD
• 95,360 points
593 views
0 votes
1 answer

Dynamic real-time view of the running system in Linux.

Hi@akhtar, The top command is used to show the ...READ MORE

Oct 12, 2020 in Linux Administration by MD
• 95,360 points
585 views
0 votes
1 answer

Select sections of text from each line of files in a Bash shell.

Hi@akhtar, There is no inbuild command available for ...READ MORE

Oct 20, 2020 in Linux Administration by MD
• 95,360 points
173 views
0 votes
1 answer

Select unique lines along with their count in Linux.

Hi@akhtar, You can find the unique entries from ...READ MORE

Oct 20, 2020 in Linux Administration by MD
• 95,360 points
144 views
0 votes
1 answer

How to capture Packet from specific port?

Hi@akhtar, Let’s say you want to capture packets ...READ MORE

Oct 4, 2020 in Linux Administration by MD
• 95,360 points
574 views
0 votes
1 answer

How to find the process ID of a program?

Hi@akhtar, You can find one program named pgrep ...READ MORE

Oct 12, 2020 in Linux Administration by MD
• 95,360 points
237 views
0 votes
1 answer

How to measure the time required to run a program?

Hi@akhtar, You can use the time command in ...READ MORE

Oct 12, 2020 in Linux Administration by MD
• 95,360 points
180 views
0 votes
1 answer

How to gather CPU architecture information of a Linux system?

Hi@akhtar, You can use lscpu command to check ...READ MORE

Oct 12, 2020 in Linux Administration by MD
• 95,360 points
159 views
0 votes
1 answer

How to delete an exported environment variable?

Hi@akhtar, To set an environment we used export ...READ MORE

Sep 22, 2020 in Linux Administration by MD
• 95,360 points
965 views
0 votes
1 answer

Kali linux installation

Hi@Kojokojo, You can check your partitions using the ...READ MORE

Oct 12, 2020 in Linux Administration by MD
• 95,360 points
126 views
0 votes
1 answer

How to configure Gmail in centos7 to send notifications to specific email id's ?

Hi@Shashl, You can use python script in your ...READ MORE

Oct 5, 2020 in Linux Administration by MD
• 95,360 points
365 views
0 votes
1 answer

How to capture Packets from Specific Interface in Linux?

Hi@akhtar, You can use tcpdump command in your ...READ MORE

Oct 3, 2020 in Linux Administration by MD
• 95,360 points
323 views
0 votes
1 answer

How to Install tcpdump in Linux?

Hi@akhtar, Many Linux distributions already shipped with tcpdump tool, if ...READ MORE

Oct 3, 2020 in Linux Administration by MD
• 95,360 points
238 views
0 votes
1 answer

How to display available interfaces in Linux system?

Hi@akhtar, You can use tcpdump command in your ...READ MORE

Oct 4, 2020 in Linux Administration by MD
• 95,360 points
192 views
0 votes
1 answer

Capture and Save Packets in a File in Linux.

Hi@akhtar, You can use tcpdump command to save ...READ MORE

Oct 4, 2020 in Linux Administration by MD
• 95,360 points
179 views
0 votes
1 answer

How to capture only TCP packets in Linux?

Hi@akhtar, You can use tcpdump command for this ...READ MORE

Oct 4, 2020 in Linux Administration by MD
• 95,360 points
152 views
0 votes
1 answer

Capture packets from destination IP in Linux.

Hi@akhtar, To capture packets from destination IP, say you ...READ MORE

Oct 4, 2020 in Linux Administration by MD
• 95,360 points
148 views
0 votes
1 answer

How to find all files containing specific text on Linux?

Hi@akhtar, Linux systems have one interesting command name grep. ...READ MORE

Sep 22, 2020 in Linux Administration by MD
• 95,360 points
270 views
0 votes
1 answer

How to stop automatic time update in Linux?

Hi@akhtar, You can find one command in the ...READ MORE

Sep 24, 2020 in Linux Administration by MD
• 95,360 points
212 views