In /usr/bin/funtbl line 38: echo " funcnts -rs ... | funtbl -c \"1 3\" -n 4 -s \"\t\"" ^-- SC2028: echo may not expand escape sequences. Use printf. In /usr/bin/funtbl line 39: echo " funtbl -c \"1 3\" -n 4 -h -s \"\t\" foo.out" ^-- SC2028: echo may not expand escape sequences. Use printf. In /usr/bin/funtbl line 80: cat $FILE | \ ^---^ SC2086: Double quote to prevent globbing and word splitting. ^---^ SC2002: Useless cat. Consider 'cmd < file | ..' or 'cmd file | ..' instead. Did you mean: cat "$FILE" | \ In /usr/bin/funtbl line 91: XHEAD="'"$XHEAD"'" ^-- SC2016: Expressions don't expand in single quotes, use double quotes for that. For more information: https://www.shellcheck.net/wiki/SC2016 -- Expressions don't expand in singl... https://www.shellcheck.net/wiki/SC2028 -- echo may not expand escape sequen... https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...