Category: centos

BASH Shell Test If a File Is Writable or Not – nixCraft: undefined

How to set rsync speed limit from eating all bandwidth with -bwlimit option – nixCraft:

In this tutorial you will learn how to set up bandwidth I/O limit using rsync command on Linux, MacOS, FreeBSD and Unix-like systems.

It is a must-read for all Unix/*BSD/Linux fans. This is the fascinating story of how Unix began & how it took over the world by Brian Kernighan. The author was a member of the original group of Unix developers & many Unix programmes including AWK. You can grab it from Amazon <=

Add / Create a Sudo User on CentOS Linux 8 – nixCraft: undefined

Vi / Vim Save And Quit The Editor Command – nixCraft:

Understanding /etc/passwd File Format – nixCraft: undefined

Configure Nginx to use TLS 1.2 and 1.3 only – nixCraft: undefined

How to check and list installed packages in CentOS Linux – nixCraft:

List & backup all installed packages on a CentOS/RHEL/Fedora/SUSE Linux:

rpm -qa –qf “%{NAME}\n” |sort > pkg.txt

Restore it later if the system failed or build another system from the list (replace yum with zypper or dnf as per Linux distro):

yum -y install $(cat pkg.txt)

So learn AWS if you are into devops, programming and sysadmin stuff.

Linux Change or Rename User Name and UID – nixCraft: undefined