Latest questions in Linux Administration

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Difference between ctrl-z and "&" in linux

My understanding is that when you are ...READ MORE

Apr 13, 2022 in Linux Administration by Soham
• 9,700 points
272 views
0 votes
0 answers

How do i select correct active serial port in linux?

I am trying to communicate with a ...READ MORE

Apr 13, 2022 in Linux Administration by Soham
• 9,700 points
259 views
0 votes
1 answer

Amazon Linux: apt-get: command not found

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

Feb 11, 2022 in Linux Administration by Soham
• 9,700 points
1,956 views
0 votes
1 answer

Chmod 777 to a folder and all contents

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

Feb 9, 2022 in Linux Administration by Rahul
• 9,670 points
6,867 views
0 votes
0 answers

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
215 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
• 95,440 points
398 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
• 95,440 points
885 views
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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
• 95,440 points
1,114 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
• 95,440 points
568 views
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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
• 95,440 points
17,206 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
1,584 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
• 95,440 points
1,086 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
• 95,440 points
382 views
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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
• 95,440 points
22,897 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
• 95,440 points
801 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
• 95,440 points
673 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
• 19,610 points
1,863 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
• 95,440 points
2,494 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
2,034 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
• 95,440 points
1,279 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
• 95,440 points
406 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
• 95,440 points
570 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
• 95,440 points
1,549 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
• 95,440 points
443 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
• 95,440 points
1,250 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
• 95,440 points
375 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
• 95,440 points
951 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
• 95,440 points
390 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
• 95,440 points
2,080 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
• 95,440 points
501 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
• 95,440 points
4,931 views
0 votes
1 answer

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
• 95,440 points
24,788 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
• 95,440 points
623 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
• 95,440 points
1,327 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
• 95,440 points
793 views
0 votes
1 answer

How to change the current time in Linux system?

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

Sep 25, 2020 in Linux Administration by MD
• 95,440 points
454 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
• 95,440 points
2,117 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
• 95,440 points
922 views
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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
• 95,440 points
2,423 views
0 votes
1 answer

Error while installing Let's Encrypt SSL on My Website

Hi@Hitesh, There may be a firewall issue. Check ...READ MORE

Aug 24, 2020 in Linux Administration by MD
• 95,440 points
521 views
0 votes
1 answer

How to change the group of a folder in Linux system?

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

Aug 14, 2020 in Linux Administration by MD
• 95,440 points
1,087 views
0 votes
1 answer

How to add user to a group in Linux system?

Hi@akhtar, In Linux, different users have different roles ...READ MORE

Aug 14, 2020 in Linux Administration by MD
• 95,440 points
489 views
0 votes
1 answer

How to create a group in Linux system?

Hi@MD, On Linux, group information is held in the /etc/group file. ...READ MORE

Aug 14, 2020 in Linux Administration by akhtar
• 38,230 points
562 views
0 votes
1 answer

How to change the owner of any folder in Linux system?

Hi@akhtar, Linux system has one command named chown. This ...READ MORE

Aug 14, 2020 in Linux Administration by MD
• 95,440 points
978 views
0 votes
1 answer

chmod: changing permissions of '/root/': Operation not permitted

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

Aug 14, 2020 in Linux Administration by MD
• 95,440 points
133,572 views
0 votes
1 answer

How to remove write permission from a folder in Linux system?

Hi@akhtar, You can use chmod command to remove ...READ MORE

Aug 13, 2020 in Linux Administration by MD
• 95,440 points
2,914 views
0 votes
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
• 95,440 points
24,281 views
0 votes
1 answer

How to give the read power of a folder in Linux system?

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

Aug 13, 2020 in Linux Administration by MD
• 95,440 points
636 views
0 votes
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
• 95,440 points
42,852 views