11-01-2014
No lesson on my part can be learned. Only a misunderstanding of language corrected. I incorrectly understood that, "lscpu was also outputting the following line, which the grep was (incorrectly) catching" meant that grep was returning the next line after "CPU(s):" (two different lines total) which would be "On-line CPU(s) list" on my system but some unknown line after "Numa node CPU(s):" on his computer which I don't have on my computer. Therefore I thought egrep had a bug of returning two lines on his machine and only one on mine.
But the difference between your clarification and chubler is that yours adds that the unforeseen result was due to the regular expression and omits the former statement of 'grep being incorrect'.
Last edited by charlieandlinux; 11-01-2014 at 03:22 AM..
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LEARN ABOUT OPENDARWIN
zgrep
ZGREP(1) General Commands Manual ZGREP(1)
NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci-
fied, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and
fed to grep.
If zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep uses
it as the grep program to be invoked. For example:
for sh: GREP=fgrep zgrep string files
for csh: (setenv GREP fgrep; zgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO
grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)
ZGREP(1)