Restore the default Shell in Linux

Restore the Linux system's default Shell-general Linux technology-Linux technology and application information. For more information, see. Ubuntu has replaced the default bash shell with dash. The result is that/bin/sh is linked to/bin/dash instead of the traditional/bin/bash.

Ubuntu Edgy is the first release to use dash as the default shell, which seems to be affected by Debian. On Ubuntu Wiki, you can learn the reasons for the change. dash is smaller and runs faster, and it is also compatible with POSIX.

However, the problem is that a large number of users on the Internet have errors due to shell replacement. After all, many existing scripts are not 100% POSIX compatible. To change the default shell back to bash, you can select no after executing sudo dpkg-reconfigure dash.

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