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UNIX for Dummies Questions & Answers

Substring

 
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# 1  
Old 04-15-2014
Substring
Hi,

My requirement is to get the substring and then remove special character.
Code:
Ex 
I have data like T_SYSTEM_XXXXX_YYYY_ZZZ
I want to get XXXXXYYYYZZZ

the part after T_SYSTEM is varying it might be XXX_YY or just XX

can you tell me which all commands i have to use.

i understand i have to use AWK here but m still confused.
Last edited by Mohammed_Tabish; 04-15-2014 at 11:35 AM..
# 2  
Old 04-15-2014
Code:
 echo 'T_SYSTEM_XXXXX_YYYY_ZZZ' | sed 's/T_SYSTEM_//'

# 3  
Old 04-15-2014
Hello,

Following may also help.

Code:
echo "T_SYSTEM_XXXXX_YYYY_ZZZ" | awk -F"\_" '{print $3 $4 $5}'

Output wil lbe as follows.

Code:
XXXXXYYYYZZZ


Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
Mohammed_Tabish
# 4  
Old 04-15-2014
thanks it worked.

just one more thing it shows a warning when we execute this statement, is there any way to not display the warning.
Last edited by Mohammed_Tabish; 04-15-2014 at 11:44 AM..
# 5  
Old 04-15-2014
... another option ...
Code:
| cut -c10- | tr -d _

# 6  
Old 04-15-2014
With a 1993 or later version of the Korn shell or with bash, you could use:
Code:
#!/bin/ksh
var="T_SYSTEM_XXXXX_YYYY_ZZZ"
new=${var#T_SYSTEM}
new=${new//_/}
printf "convert %s -> %s\n" "$var" "$new"

which produces:
Code:
convert T_SYSTEM_XXXXX_YYYY_ZZZ -> XXXXXYYYYZZZ

 
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