09-07-2008
if you want to choose 1 between the 2 , then learn awk.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a question. Take the following statement
awk -F\| '{print $21}' testfile | sed 's/\//\\/g' > newfile
This will grab the 21st column of a | delimited text file, replace the forward slashes "/" , with back slashes "\", and redirect the output newfile. Now, how do I get the output... (4 Replies)
Discussion started by: shimb0
4 Replies
2. Shell Programming and Scripting
Hello,
I am new to shell scripting. I want to optimize my one of the script.
I have one file and i want to remove selected zones for domains from that file.In this file i have almost 3500 zones for domains.Sample data for the file....
named.backup... (0 Replies)
Discussion started by: nrbhole
0 Replies
3. Shell Programming and Scripting
How do I grab the first 10 characters of a line and append it to another empty file? (7 Replies)
Discussion started by: xgringo
7 Replies
4. UNIX for Dummies Questions & Answers
Hello,
Despite reading the Pattern Matching chapter in the O'Reilly Sed & Awk book several times and
looking at numerous examples, I cannot seem to get any kind of conditional script to work in my awk scripts!
I am able to do the basic awk and grep script to capture the data but when I do with... (0 Replies)
Discussion started by: pg55
0 Replies
5. Shell Programming and Scripting
Hi all,
can anyone have sed & awk programming doc..so that to learn it easier.. (1 Reply)
Discussion started by: gk2009
1 Replies
6. Shell Programming and Scripting
I have large number of data files, close to 300 files, lets say all files are same kind and have extension .dat , each file have mulitple lines in it.
There is a unique line in each file containing string 'SERVER'. Right after this line there is another line which contain a string 'DIGIT=0',... (4 Replies)
Discussion started by: sal_tx
4 Replies
7. UNIX for Dummies Questions & Answers
Hi,
Can anyone let me know the difference between awk and sed utilities in Unix?
Many thanks. (2 Replies)
Discussion started by: venkatesht
2 Replies
8. Shell Programming and Scripting
Hello,
I have a file. its content are like below.
mdn:87439842
imsi:23082038203
Ctime:12082010 01:20:10
mdn:9324783783
imsi:402349823322
Ctime: 12072010 01:20:10
mdn:87439842
imsi:23082038203
Ctime: 23072010 01:20:10
mdn:87439842
imsi:23082038203
Ctime:18072010 01:20:10
mdn:87439842... (3 Replies)
Discussion started by: Sanket11
3 Replies
9. Shell Programming and Scripting
Hi Experts,
I am studying SED and AWK text processing commands with an E-book. I am not satisfied with the way of explanation and examples given by them.
I would like you guys to suggest me the Best book for SED and AWK to become good in this utility.
Thanks in Advance (1 Reply)
Discussion started by: linuxrulez
1 Replies
10. Shell Programming and Scripting
string="din&esh\nisgood"
File.txt:
the name is
sed "s#\#${string}#g" File.txt
Output am getting:
the name is dinesh
is good
Expected output:
the name is din&esh\nisgood
The input string is dynamic it will be keep on changing
am able to handle & by placing \& in the string.. (5 Replies)
Discussion started by: dineshaila
5 Replies
LEARN ABOUT MOJAVE
english5.18
English(3pm) Perl Programmers Reference Guide English(3pm)
NAME
English - use nice English (or awk) names for ugly punctuation variables
SYNOPSIS
use English;
use English qw( -no_match_vars ) ; # Avoids regex performance penalty
# in perl 5.16 and earlier
...
if ($ERRNO =~ /denied/) { ... }
DESCRIPTION
This module provides aliases for the built-in variables whose names no one seems to like to read. Variables with side-effects which get
triggered just by accessing them (like $0) will still be affected.
For those variables that have an awk version, both long and short English alternatives are provided. For example, the $/ variable can be
referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module.
See perlvar for a complete list of these.
PERFORMANCE
NOTE: This was fixed in perl 5.20. Mentioning these three variables no longer makes a speed difference. This section still applies if
your code is to run on perl 5.18 or earlier.
This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details. If performance matters
in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing
use English qw( -no_match_vars ) ;
. It is especially important to do this in modules to avoid penalizing all applications which use them.
perl v5.18.2 2014-01-06 English(3pm)