sed help required

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting sed help required
# 1  
Old 06-09-2011
sed help required

Hi All,

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

$ cat test.txt

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,


# 4  
Old 06-09-2011
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

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

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

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

Last edited by michaelrozar17; 06-09-2011 at 12:33 PM.. Reason: added sed
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

REGEX help required and some sed/awk help as well

Hi guys, I am coding a bash script that makes use of php scripts to pull URL's from a website. These url links will have numbers in them like 0.2.3 I want to make a regex that will yield me such numbers if I use a command like preg_grep. Question1: I need a regex that will tell my preg_grep... (2 Replies)
Discussion started by: mojoman
2 Replies

2. Shell Programming and Scripting

sed pattern matching help required

Hi I am trying to pattern match with sed, if it finds a match I need it to insert characters at the 28th position, its working but its also adding an extra space and I don't know why, below is the code. sed 's/715023044/\n&/g' $asn | sed '/^71502304413-000/s/./B4/28' | sed -e :a -e... (4 Replies)
Discussion started by: firefox2k2
4 Replies

3. Shell Programming and Scripting

Tricky sed required

Hi All I need to put some sed together for a task and its a bit advanced for me, so I thought I'd ask if anyone here could help. I have a csv file with content like this - "","abcde","","" "'","abcde","","" "","","","1234" "'e'","","","" I need to remove any single quotes that fall... (17 Replies)
Discussion started by: steadyonabix
17 Replies

4. Shell Programming and Scripting

sed replacing required newlines

hi i have a requirement to replace a string with another using sed and to get the result newline separated but after sed replacement the newline vanishes below is sample code #!/bin/ksh set -x string="name sam\nage 45 \nsport soccer" echo $string string=`echo $string | sed... (2 Replies)
Discussion started by: midhun19
2 Replies

5. UNIX for Dummies Questions & Answers

Clarification required on sed

Hi Can some one tell what does this sed command do sed 's/*$//g I am more curious on the highlighted part , can some one explain what does that mean. Thanks Sri (1 Reply)
Discussion started by: Sri3001
1 Replies

6. Shell Programming and Scripting

Help required with awk/sed

Hi I have a file, with format like: column1|coulumn2|column3|column4 A|X|K|18 L|O|R|31,42,25 G|H|I|55,66 L|E|Q|25,31,94 output required: column1|coulumn2|column3|column4 A|X|K|18 L|O|R|31,25 L|E|Q|25,31 Input File Format: All columns are seperated using |, last column... (8 Replies)
Discussion started by: New to awk
8 Replies

7. Shell Programming and Scripting

Help required in sed or awk.

Hi All, I need to pick up data on both sides of "=" sign. For eg, following is the context that I have. Can I have the ip address in one variable and machine name in another variable using sed or awk. ... (1 Reply)
Discussion started by: nua7
1 Replies

8. Shell Programming and Scripting

Help in sed required.

Hi All, I am facing a small problem in sed. I want to insert a line in the existing file. Existing code: access to attr=userPassword by self write by * auth access to * by self write by users read by anonymous auth Desired code: access to attr=userPassword by self... (14 Replies)
Discussion started by: nua7
14 Replies

9. UNIX for Dummies Questions & Answers

Sed-- command help required

Hi Gurus, I have a small requirement. Let suppose i have a file test.txt test.txt contains Dispatched date = '2008-04-08' Name = 'Logers' Now i want to add one more line to it as Number of Responses = "$a" $a will be chnaging dynamically which i had grepped it in the script. Now i... (6 Replies)
Discussion started by: pssandeep
6 Replies

10. Shell Programming and Scripting

sed script required

Collegues I have a flat file with data in following structure. (S1 (S (NP (NP (DT The) (JJ beautiful) (NN view)) (PP (IN of) (NP (JJ outside) (NNP greenery)))) (VP (VBZ adds) (NP (DT a) (NN tranquil) (NN touch)) (PP (TO to) (NP (DT this) (NN place)))) (. .))) I have to extract the contents in... (2 Replies)
Discussion started by: jaganadh
2 Replies
Login or Register to Ask a Question