| Denys Vlasenko | 5d6b872 | 2016-10-02 17:39:31 +0200 | [diff] [blame] | 1 | # tests of return value inversion |
| 2 | # placeholder for future expansion | ||||
| 3 | |||||
| 4 | # user subshells (...) did this wrong in bash versions before 2.04 | ||||
| 5 | |||||
| 6 | ! ( echo hello | grep h >/dev/null 2>&1 ); echo $? | ||||
| 7 | ! echo hello | grep h >/dev/null 2>&1 ; echo $? | ||||
| 8 | |||||
| 9 | ! true ; echo $? | ||||
| 10 | ! false; echo $? | ||||
| 11 | |||||
| 12 | ! (false) ; echo $? | ||||
| 13 | ! (true); echo $? | ||||
| 14 | |||||
| 15 | ! true | false ; echo $? | ||||
| 16 | ! false | true ; echo $? | ||||
| 17 | |||||
| 18 | ! (true | false) ; echo $? | ||||
| 19 | ! (false | true) ; echo $? | ||||