
Let's see how we can make the Zsh shell as the default interactive shell for Ubuntu Linux Operating System,
Ignore point 1 and 2 if you already have zsh installed,
- Open Terminal and first to apt update (need to add sudo if not root user)
# apt update Get:1 http://ports.ubuntu.com/ubuntu-ports focal InRelease [265 kB] Get:2 http://ports.ubuntu.com/ubuntu-ports focal-updates InRelease [114 kB] Get:3 http://ports.ubuntu.com/ubuntu-ports focal-backports InRelease [108 kB] Get:4 http://ports.ubuntu.com/ubuntu-ports focal-security InRelease [114 kB] Get:5 http://ports.ubuntu.com/ubuntu-ports focal/main arm64 Packages [1234 kB] Get:6 http://ports.ubuntu.com/ubuntu-ports focal/multiverse arm64 Packages [139 kB] Get:7 http://ports.ubuntu.com/ubuntu-ports focal/universe arm64 Packages [11.1 MB] Get:8 http://ports.ubuntu.com/ubuntu-ports focal/restricted arm64 Packages [1317 B] Get:9 http://ports.ubuntu.com/ubuntu-ports focal-updates/restricted arm64 Packages [3529 B] Get:10 http://ports.ubuntu.com/ubuntu-ports focal-updates/main arm64 Packages [1253 kB] Get:11 http://ports.ubuntu.com/ubuntu-ports focal-updates/multiverse arm64 Packages [9055 B] Get:12 http://ports.ubuntu.com/ubuntu-ports focal-updates/universe arm64 Packages [1045 kB] Get:13 http://ports.ubuntu.com/ubuntu-ports focal-backports/main arm64 Packages [50.8 kB] Get:14 http://ports.ubuntu.com/ubuntu-ports focal-backports/universe arm64 Packages [21.6 kB] Get:15 http://ports.ubuntu.com/ubuntu-ports focal-security/universe arm64 Packages [766 kB] Get:16 http://ports.ubuntu.com/ubuntu-ports focal-security/restricted arm64 Packages [3291 B] Get:17 http://ports.ubuntu.com/ubuntu-ports focal-security/main arm64 Packages [879 kB] Get:18 http://ports.ubuntu.com/ubuntu-ports focal-security/multiverse arm64 Packages [3242 B] Fetched 17.1 MB in 11s (1593 kB/s) Reading package lists... Done Building dependency tree Reading state information... Done 1 package can be upgraded. Run 'apt list --upgradable' to see it.
- Now lets install zsh using command - apt install zsh
# apt install zsh Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: libcap2 libgdbm6 zsh-common Suggested packages: gdbm-l10n zsh-doc The following NEW packages will be installed: libcap2 libgdbm6 zsh zsh-common 0 upgraded, 4 newly installed, 0 to remove and 1 not upgraded. Need to get 4438 kB of archives. After this operation, 17.9 MB of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 http://ports.ubuntu.com/ubuntu-ports focal/main arm64 libcap2 arm64 1:2.32-1 [15.5 kB] Get:2 http://ports.ubuntu.com/ubuntu-ports focal/main arm64 libgdbm6 arm64 1.18.1-5 [26.4 kB] Get:3 http://ports.ubuntu.com/ubuntu-ports focal/main arm64 zsh-common all 5.8-3ubuntu1 [3744 kB] Get:4 http://ports.ubuntu.com/ubuntu-ports focal/main arm64 zsh arm64 5.8-3ubuntu1 [653 kB] Fetched 4438 kB in 4s (1266 kB/s) debconf: delaying package configuration, since apt-utils is not installed Selecting previously unselected package libcap2:arm64. (Reading database ... 4120 files and directories currently installed.) Preparing to unpack .../libcap2_1%3a2.32-1_arm64.deb ... Unpacking libcap2:arm64 (1:2.32-1) ... Selecting previously unselected package libgdbm6:arm64. Preparing to unpack .../libgdbm6_1.18.1-5_arm64.deb ... Unpacking libgdbm6:arm64 (1.18.1-5) ... Selecting previously unselected package zsh-common. Preparing to unpack .../zsh-common_5.8-3ubuntu1_all.deb ... Unpacking zsh-common (5.8-3ubuntu1) ... Selecting previously unselected package zsh. Preparing to unpack .../zsh_5.8-3ubuntu1_arm64.deb ... Unpacking zsh (5.8-3ubuntu1) ... Setting up zsh-common (5.8-3ubuntu1) ... Setting up libcap2:arm64 (1:2.32-1) ... Setting up zsh (5.8-3ubuntu1) ... Setting up libgdbm6:arm64 (1.18.1-5) ... Processing triggers for libc-bin (2.31-0ubuntu9.2) ...
- Now use command and you will be prompted to add the path of the shell you want to use as your Login Shell, type the path of Zsh.
# chsh Changing the login shell for root Enter the new value, or press ENTER for the default Login Shell [/bin/bash]: /usr/bin/zsh
- Close the terminal and launch again to take in effect.
- You would see now the default shell is zsh.
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