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Issues in grep command in Linux

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# 1  
Old 01-16-2012
Issues in grep command in Linux
Hi All

I have a file containing following records:
Code:
$HEW_TGT_DB2_USER=hbme_bi2
$prmAttunityUser=ais
$DS_USER=hbme_bi2
$prmStgUser=hbme_bi2
$prmuser=hbme_bi2
$prmStgPass=hbme_bi2
$prmpwd=hbme_bi2
$prmAttunityUser=ais

Say suppose the name of the file is test4.txt

When i fire this command on linux
Code:
ret=`grep \^$prmAttunityUser\= test4.txt`
echo $ret

The value in "ret" is blank could you all please help me in troubleshooting this where as i want that "ret" variable should contain output like this

Code:
$prmAttunityUser=ais




Thanks
# 2  
Old 01-16-2012
Code:
#ret=$(grep '$prmAttunityUser\=' test4.txt )
#echo $ret
#$prmAttunityUser=ais $prmAttunityUser=ais

# 3  
Old 01-16-2012
Code:
ret=$(grep \$prmpwd <file name>)

You need to escape $
This User Gave Thanks to dirtyd0ggy For This Post:
vee_789
# 4  
Old 01-17-2012
I want the output as
Code:
prmAttunityUser=ais

The output should be excluding the $ sign.
# 5  
Old 01-17-2012
if you want something like

$DS_USER should be hbme_bi2
$prmAttunityUser should be ais


then you need to read about the command source or ( . )

Code:
 
$ cat test.txt
a=one
b=two
c=three
 
$ . test.txt
 
$ echo $a
one
 
$ echo $b
two
 
$ echo $c
three

# 6  
Old 01-17-2012
Similar post : https://www.unix.com/shell-programmin...rep-issue.html

Please continue with the link ..
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