I thought the following script would just print 'hello' and then exit with a '1'
#!/bin/bash -e
! echo hello
echo world
However, it prints
hello
world
and exits with a 0
the following script exits with a 1:
#!/bin/bash -e
! echo hello
and so does the following
#!/bin/bash -e
echo hello | grep world
! echo hello
echo world
but for some reason the -e option doesn't manage to fail the script when a command returns a failing exit code due to a ! half way through. Can anybody offer an explanation that will make me feel better about this?