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# 1  
Old 06-09-2011
sed help required

Hi All,

I have one file with below type of data in it,

Code:
$ cat test.txt
###123
###xyxytuerwb
###2
###tyupe

Here I would like to replace all the characters with "x" after the 3 "###" with the same number of characters.

Can you please help me to achieve this.
# 2  
Old 06-09-2011
can you post the output you are expecting?
# 3  
Old 06-09-2011
After masking output will look like below,

Code:
###xxx
###xxxxxxxxxx
###x
###xxxxx

# 4  
Old 06-09-2011
Code:
awk -F# '{gsub(".","x",$NF)}1' OFS=# file

This User Gave Thanks to Franklin52 For This Post:
# 5  
Old 06-09-2011
Hi Franklin,

Thanks a lot it worked perfectly.

One more thing can these "###" retained ?
# 6  
Old 06-09-2011
A sed version

Code:
 
sed '/^###/ s/./x/g' -e 's/^xxx/###/g' input_file

# 7  
Old 06-09-2011
Through tr
Code:
tr '[a-z0-9]' 'X' < inputfile

If you have GNU sed
Code:
sed 's/./X/4g' inputfile


Last edited by michaelrozar17; 06-09-2011 at 12:33 PM.. Reason: added sed

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