Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Deleting duplicated chunks in a file using awk/sed

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Deleting duplicated chunks in a file using awk/sed
Prev   Next
# 1  
Old 05-25-2016
Deleting duplicated chunks in a file using awk/sed
Hi all,

I'd always appreciate all helps from this site.

I would like to delete duplicated chunks of strings on the same row(?).

One chunk is comprised of four lines such as:
path name
starting point
ending point
voltage number

I would like to delete duplicated chunks on the same row(?) if "ending point" is duplicated.
For example, ending points of the first and the second chunk are same in the first row and I would like to only keep the first chunk. Therefore, the second chunk is removed on the first row.

In the second row, ending points of the first and the third chunk are same and keep the first chunk.

input.txt:
Code:
path_sparc_ffu_dp_out_1885  path_sparc_ffu_dp_out_2759  path_sparc_ffu_dp_out_3115
R_1545/Q    R_1541/Q    R_1545/Q
dp_ctl_synd_out_low[6]  dp_ctl_synd_out_low[6]  dp_ctl_synd_out_low[2]
0.926208    0.910592    0.905082
path_sparc_ffu_dp_out_699   path_sparc_ffu_dp_out_712   path_sparc_ffu_dp_out_819
R_1053/Q    R_1053/Q    R_1053/Q
dp_ctl_synd_out_low[2]  dp_ctl_synd_out_low[6]  dp_ctl_synd_out_low[2]
0.945436    0.945436    0.9435
path_sparc_ffu_dp_in_686
frf_dp_data[42]
dp_ctl_synd_out_high[6]
0.812538


Expected_output.txt:
Code:
path_sparc_ffu_dp_out_1885  path_sparc_ffu_dp_out_3115
R_1545/Q        R_1545/Q
dp_ctl_synd_out_low[6]      dp_ctl_synd_out_low[2]
0.926208        0.905082
path_sparc_ffu_dp_out_699   path_sparc_ffu_dp_out_712   
R_1053/Q    R_1053/Q    
dp_ctl_synd_out_low[2]  dp_ctl_synd_out_low[6]  
0.945436    0.945436 
path_sparc_ffu_dp_in_686
frf_dp_data[42]
dp_ctl_synd_out_high[6]
0.81253

The number of columns can be up to 20 in a file.

Actually, I have posted the same question on other website to get a help, and somebody posted replies, but did not work correctly. Any help is appreciated.

Best,

Jaeyoung
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Deleting lines containing duplicated strings

Dear all, I always appreciate your help. I would like to delete lines containing duplicated strings in the second column. test.txt 658 invert_d2e_q_reg_0_/Qalu_ecl_zlow_e 0.825692 659 invert_d2e_q_reg_0_/Qalu_byp_rd_data_e 0.825692 660 invert_d2e_q_reg_0_/Qalu_byp_rd_data_e 0.825692... (1 Reply)
Discussion started by: jypark22
1 Replies

2. Shell Programming and Scripting

awk for splitting file in constant chunks

Hi gurus, I wanted to split main file in 20 files with 2500 lines in each file. My main file conatins total 2500*20 lines. Following awk I made, but it is breaking with error. awk '{ for (i = 1; i <= 20; i++) { starts=2500*$i-1; ends=2500*$i; NR>=starts && NR<=ends {f=My$i".txt"; print >> f;... (10 Replies)
Discussion started by: mukesh.lalwani
10 Replies

3. UNIX for Dummies Questions & Answers

Awk: Print out overlapping chunks of file - rows 0-20,10-30,20-40 etc.

First time poster, but the forum has saved my bacon more times than... Lots. Anyway, I have a text file, and wanted to use Awk (or any other sensible program) to print out overlapping sections, or arbitrary length. To describe by example, for file 1 2 3 4 5 etc... I want the out put... (3 Replies)
Discussion started by: matfald
3 Replies

4. Shell Programming and Scripting

deleting lines between patterns using sed or awk

hi, Here is excerpt from my xml file <!-- The custom module to do the authentication for LDAP --> </login-module> <login-module code="com.nlayers.seneca.security.LdapLogin" flag="sufficient"> <module-option... (1 Reply)
Discussion started by: sunrexstar
1 Replies

5. Shell Programming and Scripting

Can I use a shell script for deleting chunks from a watch folder?

Hello I have a unique problem of needing to delete large files slowly off of an XSan. I was wondering if there is a script I could use to delete 100gb chunks of files and folders that get placed in to a watch folder, slowly so as not to disrupt the other users. I would like to use Automator in... (0 Replies)
Discussion started by: ajsoto
0 Replies

6. Shell Programming and Scripting

Deleting characters with sed,perl,awk

Input: :: gstreamer :: xine-lib :: xine-lib-extras Output should be: gstreamer xine-lib xine-lib-extras How can it be done with sed or perl? (12 Replies)
Discussion started by: cola
12 Replies

7. Shell Programming and Scripting

Deleting the first column with sed,awk or perl

336 brtr 256 hello Output: brtr hello How can i do this with sed,awk or perl? (5 Replies)
Discussion started by: cola
5 Replies

8. Shell Programming and Scripting

Deleting a line from a file with sed and awk?

cat file.txt fvnuiehuewf ruevhxncvkjrh zxjvurhfuwe jkhvBEGINvfnvf ijrgioe Trying to delete a line that has the pattern "BEGIN" cat sedtest filename=file.txt pattern=BEGIN sed "/^$pattern/d" "$filename" (9 Replies)
Discussion started by: cola
9 Replies

9. Shell Programming and Scripting

Deleting Doubled Block with sed or awk

hi there, i have a text file like that one: I like to delete the second block with the Start and End Line! Does anyone have a idea? Thanks for your help, Roland (4 Replies)
Discussion started by: rolandh
4 Replies

10. Shell Programming and Scripting

using sed to get rid of duplicated columns...

I can not figure out this one, so I turn to unix.com for help, I have a file, in which there are some lines containing continuously duplicate columns, like the following adb abc abc asd adfj 123 123 123 345 234 444 444 444 444 444 23 and the output I want is adb abc asd adfj 123 345... (5 Replies)
Discussion started by: fedora
5 Replies
Login or Register to Ask a Question