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Top Forums Shell Programming and Scripting remove trailing newline characters Post 302120225 by shweta_d on Tuesday 5th of June 2007 06:37:16 AM
Old 06-05-2007
remove trailing newline characters

Hello ,

I have the folowing scenario :
I have a text file as follows : (say name.txt)
ABC
DEF
XYZ

And I have one more xml file as follows : (say somexml.xml)
<Name>ABC</Name>
<Age>12</Age>
<Class>D</Class>
<Name>XYZ</Name>
<Age>12</Age>
<Class>D</Class>
<Name>DEF</Name>
<Age>12</Age>
<Class>D</Class>

I use each name from text , grep accordingly and extract three tags name,age,class from xml ..

The extraction works fine and so does grep ...but i want to move that in a loop ... i.e. as follows :

for each name in text file
do something ....(grep in xml)

i use the following command :
cat name.txt | while read someLine
set ${someLine}
name=$someLine
grep "$name" somexml.xml

but the problem here occurs during readline coz it reads a newline alongwith the name due to which it cannot grep further in xml .....
So basically i want to remove the trailing newline character.....

(I would kindly acknowledge even better and innovative ways of reading the file)

Hope my problem is clear.... Smilie

Thanks and Regards,
SD
 

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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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