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Recursive replacement of search string using sed

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# 1  
Old 09-01-2014
Recursive replacement of search string using sed
Dear Unix Forum Group Members,

Please do let me know how I can replace the double pipe with single pipe recursively on single record.

Sample Input Data:
Code:
 DN set|Call prefix||| Called number address nature
 0||| *789|||||||ALL number types
 0||| 00||||||||ALL number types
10|| 001||||||||International Destination

Expected Output:
Code:
 DN set|Call prefix| Called number address nature
 0| *789|ALL number types
 0| 00|ALL number types
10| 001|International Destination

Below is the script which I'm using now. There may be chances that consecutive pipe count can be increased.

Code:
cat test.txt |sed -e 's/  /|/g' -e 's/||/|/g' -e 's/||/|/g' -e 's/||/|/g' -e 's/||/|/g' -e 's/||/|/g' -e 's/||/|/g'

Thanks in advance!

Thanks,
Reddy
Last edited by Scrutinizer; 09-01-2014 at 06:08 AM.. Reason: CODE tags
# 2  
Old 09-01-2014
Why so many? One should suffice?
Code:
sed 's/||/|/g' file

# 3  
Old 09-01-2014
I want all consecutive pipelines (two or more than two pipe's) should be replaced with single pipe only.
# 4  
Old 09-01-2014
Hello Srinu,

Welcome to forum, please use code tags while posting any commands or code as per forum rules. Here is an awk solution which can help.


Code:
awk '{gsub(/\|+/,"|",$0);print}' filename

Output will be as follows.

Code:
DN set|Call prefix| Called number address nature
0| *789|ALL number types
0| 00|ALL number types
10| 001|International Destination


Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
srinu.kadem
# 5  
Old 09-01-2014
Quote:
Originally Posted by srinu.kadem
I want all consecutive pipelines (two or more than two pipe's) should be replaced with single pipe only.
Ow yes, I meant:
Code:
sed 's/||*/|/g' file

This User Gave Thanks to Scrutinizer For This Post:
srinu.kadem
# 6  
Old 09-01-2014
If your tr has the -s (squeeze) option:
Code:
tr -s '|' '|' <file3
 DN set|Call prefix| Called number address nature
 0| *789|ALL number types
 0| 00|ALL number types
10| 001|International Destination

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