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bash: ./<script>.sh: /bin/bash^M: bad interpreter: No such file or directory

Not confirmed yet · posted Oct 28

Cause

the script has Windows CRLF line endings, so its shebang names /bin/bash plus a carriage return; no such file exists, and bash shows the CR as ^M.

Fix

risk: low

sed -i 's/\r$//' <script>.sh                    # strip the CRs (GNU sed; on macOS use dos2unix)printf '*.sh text eol=lf\n' >> .gitattributes   # stop git re-adding CRLF on Windows checkoutsgit add --renormalize . && git commit -m "Normalize shell scripts to LF"

Don’t try

bash <script>.sh — skips the shebang, but every line still ends in a CR, so bash fails with $'\r': command not found.

make the script executable — the file mode is not the problem; the interpreter path itself contains a carriage return.