Shell script execution error $ ' \ R ': Command not Found

This problem occurs because of a line-wrapping problem

Under Windows, edit the script with a newline character of "\n\r", but under Linux, the line break is "\ n". After editing in Windows and then running under Linux, the line break only uses "\ n" and the remaining "\ r" is executed as a standalone command, but "\ r" is not a shell command error.

Workaround:

sudo apt-get install Dos2unix

Dos2unix < script name >

Then the problem is solved. In addition, there are unix2dos reverse conversion tools.

Shell script execution error $ ' \ R ': Command not Found