Messages in this thread | | | Subject | Re: [PATCH 1/3]: Replace kernel/timeconst.pl with kernel/timeconst.sh | From | Valdis.Kletnieks@vt ... | Date | Sun, 04 Jan 2009 00:07:55 -0500 |
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On Sat, 03 Jan 2009 19:36:04 CST, Rob Landley said: > On Saturday 03 January 2009 06:28:22 Ingo Oeser wrote: > > > +for i in "MSEC 1000" "USEC 1000000" > > > +do > > > + NAME=$(echo $i | awk '{print $1}') > > > > cut -d' ' -f1 does the same > > > > > + PERIOD=$(echo $i | awk '{print $2}') > > > > cut -d' ' -f2 does the same
Close, but no cee-gar. cut does something counter-intuitive with multiple blanks:
% echo 'a b' | awk '{print $2}' b % echo 'a b' | cut -d' ' -f2
% echo 'a b' | sed -r 's/[ ]+/ /g' | cut -d' ' -f2 b
Unfortunately, 'sed -r' isn't in the opengroup.org list of required options, and sed 's/ / /g' doesn't DTRT for 3 or more blanks (as it won't recursively apply the change to a *new* double blank formed by the previous change).
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