Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

sed script

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers sed script
# 1  
Old 12-07-2006
sed script
Smilie

I have a series of folders /temp/a /temp/b /temp/c

In folders a, b, and c, I have files
a1.txt..........a20.txt
b1.txt..........b40.txt &
c1.txt..........c60.txt

Each file has the same data format :-

Line 1 AAAAA aaaa
Line 2 BBB bbbbbb
Line 3 CCCC cccccc
Etc etc

I need to write a sed script which will go through all the files and reformat the data thus :-

Line 1 AAAAA aaaa
Line 2 BBB
Line 3 X bbbbbb
Line 4 CCCC cccccc
Etc etc

So I need to insert a CR/LF in line 2 position 4,
create a new Line 3 with a constant text (X) and the value of what was to the right of the previous Line 2 (bbbbbb)
and move the remaining lines one line down.

Can anyone help please ?
# 2  
Old 12-07-2006
Sorry i read only second part and you can do the second part with


awk '{if (NR == 2) { $1=$1"\n"; $2="WHATEVER "$2;} print }' FILE_NAME

The only problem i see with this is, it will add extra space before third line. If if doesnt matter for you then you can live with this.
# 3  
Old 12-07-2006
Please read our rules and refrain from cross-posting. I'll close this thread and leave this one open.

Thanks
ZB
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

sed script help

I am having a file as stated below : File 1: ########################## idnd a integer 2; list 1 ; list2 ; chip top alist( .a(1) , .b(2) , .c(3) , .d(1) , .e(7) , .n(80), .d(1) , .g(7) , .n(80), .f(1) , .e(7) , .m(80)); lis 7 nfj ; jdjd kn; jsjd l ; (4 Replies)
Discussion started by: kshitij
4 Replies

2. Shell Programming and Scripting

SED script

Hi , i am stuck in this simple script. #!/bin/ksh echo "enter the file name" read flname echo "enter version" read ver grep $flname /home/con/snsc/perl/map > flplist dirname `cat flplist` | sed 's/\/so${vers}\//\/so${vers}_xyz\//' > dirlist the map file is basically a list of file... (3 Replies)
Discussion started by: debu182
3 Replies

3. Shell Programming and Scripting

sed script

I am beginner for Unix. I practicing unix shell script. I worked out some sed script example from internet. Everything fine. But in real unix environment, where sed script is mainly used.? Can anyone give some examples for the usage of sed script in real unix environment. It will be useful for... (1 Reply)
Discussion started by: gwgreen1
1 Replies

4. Homework & Coursework Questions

Sed script

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: Create a sed script that will display a list of all users in the /etc/passwd file that belong to the group... (0 Replies)
Discussion started by: lakers34kb
0 Replies

5. Shell Programming and Scripting

sed in script

I'm trying to write a simple script that replaces a string. The script works for uninterrupted strings, but as soon as sed encounters a space it stops reading the new string. I've tried double quotations in sed and backslashes before the $, however these don't work. Below is the script. Any help... (9 Replies)
Discussion started by: dsell002
9 Replies

6. Shell Programming and Scripting

sed script

how to convert the follow sed script file into a command line ? example: /^\.TS/,/^\.TE/{ /^$/p } I have tried the below but it is not working: # sed -n "/^\.TS/,/^\.TE/{/^$/p}" file file: 111 .TS 222 $333 << extract this line 444 .TE 555 (2 Replies)
Discussion started by: 3Gmobile
2 Replies

7. Shell Programming and Scripting

sed in a script

I am trying to run a sed command within a script to edit a file. I am trying to put the value of MYUSER into the sshd_config file. Instead of putting the value of the variable, MYUSER, it puts in the string ${MYUSER}. Anyone know a good solution to this? cat ${SSHD_CONFIG} | sed... (1 Reply)
Discussion started by: Mike_the_Man
1 Replies

8. Shell Programming and Scripting

Sed script

/\/\*/!b :x /\*\//!{ N bx } s/\/\*.*\*\/// This scipt should remove c like commnets /**/ i know what de last line does but i dont't know what the first lines do Can anyone explain please (3 Replies)
Discussion started by: clauchiorean
3 Replies

9. UNIX for Dummies Questions & Answers

help in sed script

I am having a shell script that connects to database half hourly and pulls out the backlog from some tables. Now that logfile is growing too big and I need to housekeep it! effectively I want to keep last 30 days data in that file and move rest to archived file. The file contents are as below.... (14 Replies)
Discussion started by: abhi123
14 Replies

10. Shell Programming and Scripting

Sed script maybe?

I have a lot of script files that were created by Extract in a dir that no longer exists. Now that I have to run these scripts they 'all' have to be changed. I'm looking for a way to do a 'mass' change if possible. So far, I've dumped all of the script file names to a file and sorted them to... (5 Replies)
Discussion started by: HOlli
5 Replies
Login or Register to Ask a Question