Linux HowTo - Linux / Unix Q & A from nixCraft

How to find ulimit for user on Linux

last updated May 24, 2020 in BASH Shell, CentOS, Debian / Ubuntu, Linux, RedHat and Friends, Suse

How can I find the correct ulimit values for a user account or process on Linux systems?

How to extract tar.xz files in Linux and unzip all files

last updated May 24, 2020 in BASH Shell, CentOS, Debian / Ubuntu, Linux, RedHat and Friends, Suse

How do I extract tar.xz files in Linux? Can you tell me command to unzip linux-5.6.13.tar.xz file? How can I uncompressing (or decompressing) all files in the current directory?

How to add and delete users on Alpine Linux

last updated May 2, 2020 in Alpine Linux, User Management

How do I add and delete users on Alpine Linux?

How to save terminal output to a file under Linux/Unix

last updated April 19, 2020 in BASH Shell, KSH Shell, Linux, UNIX

How do I save the terminal output to a file when using BASH/KSH/CSH/TCSH under Linux, macOS, *BSD or Unix-like operating systems?

Linux find Windows 10 OEM product key command

last updated January 17, 2020 in CentOS, Debian / Ubuntu, Linux, RedHat and Friends, Suse, Ubuntu Linux, Windows

I removed and installed Ubuntu Linux 16.04 LTS on my development Lenovo laptop. However, I need to use my Windows 10 pro in KVM VM for running the accounting app. How do I find and print my embedded Windows 10 pro key from a Linux command line option? How can I retrieve Microsoft Windows 8 and 10 OEM product key from BIOS?

How to check and list installed packages in CentOS Linux

last updated November 29, 2019 in CentOS, Linux, Package Management

How do I check installed packages in CentOS Linux version 6.x/7.x/8.x? How can I List installed packages on CentOS Enterprise Linux server?

How to use/run bash aliases over ssh based session

last updated January 15, 2020 in BASH Shell, Linux, OpenBSD, Troubleshooting, UNIX

I have set up a bash alias named file_repl. It works entirely when I log in using ssh command. However, my bash aliases are not running over ssh, for example:
$ ssh vivek@server1.cyberciti.biz file_repl bash: file_repl: command not found
How do I run bash shell aliases when I use ssh command?