How to change the default login shell by command line in linux server?

By using chsh command we can change the default login shell to other shell.

By using -l option we can list the available login shell on linux server.

[root@testserver ~]# chsh -l
/bin/sh
/bin/bash
/sbin/nologin
/bin/dash
/bin/tcsh
/bin/csh
/bin/ksh

Then which user login shell need to change, we can change by below command. (If a shell is not given on the command line, chsh prompts for one)

[root@testserver ~]# chsh hygmtng7
Changing shell for hygmtng7.
New shell [/bin/ksh]: /bin/bash
Shell changed.

Before
[root@testserver ~]# cat /etc/passwd | grep -i hygmtng7
hygmtng7:x:20009:20009::/gmtng7/hyperion:/bin/ksh

After
[root@testserver ~]# cat /etc/passwd | grep -i hygmtng7
hygmtng7:x:20009:20009::/gmtng7/hyperion:/bin/bash