On 07/30/2009 11:42 PM, Pavel Roskin wrote:
On Thu, 2009-07-30 at 23:25 +0200, Joerg Albert wrote:
This removes the two errors of [ with target "install"
make[1]: Leaving directory `/home/joerg/src/linux-2.6.30'
[: 9: missing ]
[: 9: missing ]
depmod will prefer updates/ over kernel/ -- OK!
I believe "-a" in test is not very portable. I remember getting
complaints about it. I believe the built-in test command in bash 1.x
doesn't have it. I'd rather stick with && and || written properly.
"-a" and -o" are currently only used in the clean target and in the
maintenance scripts, so they probably don't get enough testing on
systems with old bash.
Bash 3.2.39 seems to have a problem with &&, while [[ ... ]] accept it:
joerg@thinkpad:~$ echo $BASH_VERSION
3.2.39(1)-release
joerg@thinkpad:~$ if [ -z "" && -z "" ]; then echo "both empty"; fi
bash: [: missing `]'
joerg@thinkpad:~$ if [ -z "" -a -z "" ]; then echo "both empty"; fi
both empty
joerg@thinkpad:~$ if [[ -z "" && -z "" ]]; then echo "both empty"; fi
both empty
joerg@thinkpad:~$
If the link for the man page of bash v1 on http://wwwbs.informatik.htw-dresden.de/fbs/bash/old.bash.html is correct,
that version supported -a in test.
Unfortunately [[ ... ]] was introduced after bash v1 (2.02 AFAIR).
Regards,
Joerg.
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