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Top Forums UNIX for Dummies Questions & Answers Running two command at the same time Post 302147316 by Orbix on Monday 26th of November 2007 10:25:28 AM
Old 11-26-2007
Running two command at the same time

Is there any way I could run two commands at the same time? Say I have in my script a command that grep a keyword from a huge size file:

zgrep $KEYWORD $FILE

and because this is a large file it takes a while to finish, so I would want that while zgrep is doing its job, I have a function that serves a progress bar:

Grepping..

Grepping....

This means that the dot (.) increases simultaneously while zgrep is doing its job internally in my script. Is that possible?
 

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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 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)
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