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Shell Programming and Scripting
AWK - Pattern Matching & Replacing - Performance
Post 302450612 by srivijay81 on Friday 3rd of September 2010 08:00:20 AM
09-03-2010
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1. Shell Programming and Scripting
Hi everyone.
Could u be so kind and help me with on "simple" shell script?
1. i need to search a file line by line for a pattern.
example of a lines in that file
2947 domain = feD,id = 00 0A 02 48 17 1E 1D 39 DE 00 0E 00,Name
Values:snNo = f10
Add AttFlag = 0
2. i need to find... (0 Replies)
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2. Shell Programming and Scripting
Hi all
I need to replace all characters in a file except for the matching pattern
eg.
I need to replace all character with '*' except for the pattern "abc"
Input
"sdfhgsdf abc ##%$#abcsdfh sdfjkfff"
Output
"******abc******abc*************"
Request for single liner solution (1 Reply)
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3. 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)
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4. Shell Programming and Scripting
Hi,
In my shell script i have to match a patten in a file , if found i have to prefix the entair line by a "word"
eg. pattern = "aaa" prefix= #123
file: bbbb xxx
zzzz aaaa
qqqq kkkk
outPut file: bbbb xxx
... (5 Replies)
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Hi!
i'm trying to parse textfiles against a pattern and storing the result in a variable.
The strings i want to get are embraced by and can occur several times in one line, so e.g.
some text anything else endwhat i have so far:
#!/bin/bash
for f in $*
do
exec 3<&0
exec 0<$f
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I have file 1 & file 2 with content mentioned below. I want to get the output as shown in file3.
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check the content of column 1 & column 2, if value of column 1 in file1 matches with first column of file2 then remaining columns(2&3) of file2 should get replaced, also if value of... (4 Replies)
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7. Shell Programming and Scripting
Dear Unix Forums,
I am hoping you can help me with a pattern matching problem.
What am I trying to do?
I want to replace multiple lines of a text file (that match a multi-line pattern) with a single line of text. These patterns can span several lines and do not always have the same number of... (10 Replies)
Discussion started by: thefang
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8. Shell Programming and Scripting
I have an awk related question that I was hoping you all could help with.
I am given 2 input files named OLDFILE and NEWFILE, and a Master file named MASTERFILE. They can be seen below.
OLDFILE:
a
a
a
a
a
f
g
4
5
7
8
1
2
3 (1 Reply)
Discussion started by: tiktak292
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9. 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
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10. Shell Programming and Scripting
Hi,
I want to know which pattern matching technique will be giving better performance and quick result.
I will be having the patterns in a file and want to read that patterns and search through a whole file of say 70 MB size. whether if i initially create a pattern matching string while... (7 Replies)
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LEARN ABOUT DEBIAN
seqdiag
SEQDIAG(1) General Commands Manual SEQDIAG(1) NAME
seqdiag - generate sequence-diagram image file from spec-text file. SYNOPSIS
seqdiag [options] file DESCRIPTION
This manual page documents briefly the seqdiag commands. seqdiag is generate sequence-diagram image file from spec-text file. OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. For a complete description, see the Info files. --version show program's version number and exit -h, --help show this help message and exit -a, --antialias Pass diagram image to anti-alias filter -c FILE, --config=FILE read configurations from FILE -o FILE write diagram to FILE -f FONT, --font=FONT use FONT to draw diagram -T TYPE Output diagram as TYPE format SEE ALSO
The programs are documented fully by http://tk0miya.bitbucket.org/seqdiag/build/html/index.html AUTHOR
seqdiag was written by Takeshi Komiya <i.tkomiya@gmail.com> This manual page was written by Kouhei Maeda <mkouhei@palmtb.net>, for the Debian project (and may be used by others). May 21, 2011 SEQDIAG(1)