Getting an "ambiguous redirect" error
bash
Solution
Bash can be pretty obtuse sometimes.
The following commands all return different error messages for basically the same error:
$ echo hello >
bash: syntax error near unexpected token `newline`
$ echo hello > ${NONEXISTENT}
bash: ${NONEXISTENT}: ambiguous redirect
$ echo hello > "${NONEXISTENT}"
bash: : No such file or directory
Adding quotes around the variable seems to be a good way to deal with the "ambiguous redirect" message: You tend to get a better message when you've made a typing mistake -- and when the error is due to spaces in the filename, using quotes is the fix.
Problem
The following line in my Bash script ``` echo $AAAA" "$DDDD" "$MOL_TAG >> ${OUPUT_RESULTS} ``` gives me this error: ``` line 46: ${OUPUT_RESULTS}: ambiguous redirect ``` Why?