On Friday, 23 December 2016 3:07:09 PM AEDT Craig Sanders via luv-main wrote:
On Fri, Dec 23, 2016 at 02:35:06PM +1100, Russell Coker wrote:
Putting the -e in the first line of the shell script is considered bad practice anyway.
that's debatable. some think it's bad practice. some think it's using bash as it's documented to work.
While it is documented to work that way doesn't mean it's a good idea to do it. cd $DIR rm -rf * For example if a script has the above 2 lines then a failure to change directory will be catastrohic (and it's something I've seen in production more than once). If you are writing your own scripts then you can avoid such things, but in a typical sysadmin team it's best to have "set -e" near the top of scripts.
As mentioned, the problem is even worse if used with other languages. e.g the following perl script works and produces useful (and expected) output:
Agreed. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/