SOURCE command not found in SH shell solution

An error occurred while executing the script in Ubuntu system "Source command not found in sh shell"

This is actually a script that executes in Ubuntu by default with dash, not bash

by command

#LS -l 'whichsh/bin/sh --dash

We found that the SH used by default in the script actually corresponds to dash, not bash. In order to resolve this error, we need to modify the corresponding relationship so that sh corresponds to bash

Execute the following command, select No in the pop-up box to change the SH link to bash

#sudo dpkg-reconfigure Dash
If shown, select No can modify the corresponding relationship, after the completion of the modification ls-l 'sh'   can be seen, the corresponding relationship has been modified, can be normal execution of the script

SOURCE command not found in SH shell solution