Pattern: Missing use of var=$(command)
Issue: -
Putting var= in front of a command will not assign its output. Use var=$(command here) to execute the command and capture its output.
If you do want to assign a literal string, use quotes to make this clear to ShellCheck and humans alike.
Example of incorrect code:
user=whoami # Want to run whoami and assign output
PAGER=cat git log # Want to assign the string "cat"Example of correct code:
user=$(whoami)
PAGER="cat" git logNone.
Quoting a single command (as in PAGER="cat" above) doesn't change how the script works. It's purely to show shellcheck (and humans) that a literal assignment of a command name is intentional.
This warning triggers generally when a variable is assigned an unquoted command name (from a list of hard coded names).