blob: 8393d95a43fd534716e25cb6a0bba0232029a927 [file] [log] [blame]
# tests of return value inversion
# placeholder for future expansion
# user subshells (...) did this wrong in bash versions before 2.04
! ( echo hello | grep h >/dev/null 2>&1 ); echo $?
! echo hello | grep h >/dev/null 2>&1 ; echo $?
! true ; echo $?
! false; echo $?
! (false) ; echo $?
! (true); echo $?
! true | false ; echo $?
! false | true ; echo $?
! (true | false) ; echo $?
! (false | true) ; echo $?