Korn shell is a shell program on unix system, it is used to vairety of unix operating system, suchas: sun unix, IBM AIX.etc. Ksh was developed by David Korn at Bell Labs. ksh is not installed on centos or rhel system by default. so how Do I install Korn shell program(ksh) on my centos system. This article will guide you how to install korn shell program.
CentOS Install Korn Shell
Type the following yum command on centos system:
yum install ksh
outputs:
Loaded plugins: fastestmirror Determining fastest mirrors * base: ftp.nsysu.edu.tw * extras: ftp.cs.pu.edu.tw * updates: mirrors.stuhome.net base | 3.7 kB 00:00 extras | 3.4 kB 00:00 updates | 3.4 kB 00:00 updates/primary_db | 3.9 MB 00:05 Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package ksh.x86_64 0:20100621-19.el6_4.4 will be installed --> Finished Dependency Resolution Dependencies Resolved ============================================================================================ Package Arch Version Repository Size ============================================================================================ Installing: ksh x86_64 20100621-19.el6_4.4 updates 687 k Transaction Summary ============================================================================================ Install 1 Package(s) Total download size: 687 k Installed size: 1.5 M Is this ok [y/N]: Downloading Packages: ksh-20100621-19.el6_4.4.x86_64.rpm | 687 kB 00:00 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : ksh-20100621-19.el6_4.4.x86_64 1/1 Verifying : ksh-20100621-19.el6_4.4.x86_64 1/1 Installed: ksh.x86_64 0:20100621-19.el6_4.4 Complete!
Check if ksh is installed,type:
whereis ksh
or
rpm -qa | grep ksh
outputs:
[root@devops Desktop]# whereis ksh ksh: /usr/bin/ksh /usr/share/man/man1/ksh.1.gz [root@devops Desktop]# rpm -qa | grep ksh ksh-20120801-19.el7.x86_64
Check korn shell version,type:
ksh --version
outputs:
[root@devops Desktop]# ksh --version version sh (AT&T Research) 93u+ 2018-08-01
done …