I don't believe that. It does not make sense. sed -i also creates a temp file, behind the scenes.
If you do a test that shows sed -i is faster, could you post?
Using cat here is totally not needed.
Code:
cat $Full_file |sed "/$StaticIP/d" > tmpfile
Instead:
Code:
sed "/$StaticIP/d" $Full_file > tmpfile
^^^ doesn't work, i tried that first
Quote:
Originally Posted by hanson44
More fundamentally, instead of testing with grep, then running sed, try just running grep -v:
Code:
while read StaticIP; do
grep -v -w $StaticIP $Full_file > tmpfile
mv tmpfile $Full_file
done
^^^ thanks, using this ( bad thing is i've done this before )
Quote:
Originally Posted by hanson44
---------- Post updated at 02:01 PM ---------- Previous update was at 02:00 PM ----------
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Discussion started by: Harish4032
2 Replies
LEARN ABOUT PHP
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 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)
05-01-2013
)
^^^ This is correct in the actual script.