emanuele6 1683546768 learn "When not performing substring expansion, using the forms documented below (e.g., :-), bash tests for a parameter that is unset or null. Omitting the colon results in a test only for a parameter that is unset."
emanuele6 1683546992 forget
emanuele6 1683547009 learn "When not performing substring expansion, using the forms documented below ( e.g., :- ), bash tests for a parameter that is unset or null. Omitting the colon results in a test only for a parameter that is unset."