Shell scripts written under Windows run the wrong solution under Linux

The cause of this error: CR/LF problem, press the return key under Dos/window to actually enter "enter (CR)" and "line break (LF)", and Linux/unix press the ENTER key only enter "line break (LF)", So the modified SH file will have a CR in each line, so the Linux runtime will be error-unable to find the command.

Two workarounds:

1, convert the format to UNIX, "edit-and-format conversion (CR/LF)->unix", so Linux can save files in UNIX format

2, in Vim, input: Set Ff=unix, and then: Wq, is also converted to UNIX format

CAT-E found:

Correct: cd/etc/stunnel$

Error: cd/etc/stunnel^m$

^m is a DOS format

\rn is Microsoft
\ n it's Linux.
\ r is an apple

Shell scripts written under Windows run the wrong solution under Linux