The hard disk is damaged and the system is reinstalled. An error is reported when executing the previous script

Syntax error: “(” unexpected (expecting “}”)

Troubleshooting:

ls -l /bin/sh

The default link is dash

Knowledge supplement

Bash: Unix shell written for GNU Project

SH: equivalent to /bin/bash –posix. It is bash that opens POSIX standard

Dash: it has faster execution speed than bash, but supports fewer statement leaves

Solution:

Here, I have no requirements for the speed of script execution, only that it can be used, so I can change it to bash

cd /bin/; ln -sf bash /bin/sh

l

Problem-solving.

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