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Full Discussion: Noob trying to improve
Operating Systems OS X (Apple) Noob trying to improve Post 302989616 by RudiC on Monday 16th of January 2017 08:14:36 AM
Old 01-16-2017
I don't think so, generally. grep is not intended nor designed to replace or remove patterns or partial strings. Be aware that sed has similar powerful matching algorithms as grep has.
In your special case, a (deprecated) pipe of three greps could do the job:
Code:
echo "<a href=\"/listing/bone-densitometer/osteosys/dexxum-t/2299556\"> view more </a>" | grep '.*href="[^"]*"> view more.*$' | grep -o '"[^"]*"' | grep -o '[^"]*'
/listing/bone-densitometer/osteosys/dexxum-t/2299556

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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 invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, 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 the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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