Walt Pawley wrote: > wump$ time sed "s/ .*//" Desktop/klog > kadr1
Note that this is a job for cut(1): $ cut -d" " -f1 input Interestingly, the fastest way to do that job is to use a regular expression with Python. This is about twice as fast as the proposed perl solution: $ python -c 'import re; print re.sub(" .*\n", "\n", file("input").read())' (Of course, in a script you would write that command in a more readable way instead of trying to squeeze it all on a single line.) Best regards Oliver PS: Of course, if you really need the last percent of speed, then you should write your own specialized tool in C. -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "FreeBSD is Yoda, Linux is Luke Skywalker" -- Daniel C. Sobral _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"