[nycbug-talk] useless use of awk? how to fix?

Jan Schaumann jschauma at netmeister.org
Thu May 3 21:44:04 EDT 2012

Jesse Callaway <bonsaime at gmail.com> wrote:
> This is OBVIOUSLY an rhel/vmware related example, but check it out...
> rpm -qa | awk 'BEGIN {x=0} /^vmware-tools/ {x++; pkgs[x] = $1} END{
> print "yum -y remove \\"; for (y = 1; y < x; y++) print pkgs[y] " \\";
> print ";"}' | awk -F '-[[:digit:]]' '{print $1}'

Whenever somebody asks about how to improve or fix something, my first
question is "what is it you want to do".  (I can read your code, but the
code only does what you told it to do, not what you _want_ it to do,
which may be different. ;-)

Either way, in this case, I'd ask why you want to store things in an
array first anyway if all you're doing is iterate over it lateron.  Just
print out the lines as you encounter them, which makes it a bit more

Not sure if this helps you at all. :-)

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