10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have file of more than 10000 lines.
I want to delete 40 lines after every 20 lines.
e.g from a huge file, i want to delete line no from 34 - 74, then 94 - 134 etc and so on.
Please let me know how i can do it.
Best regards, (11 Replies)
Discussion started by: nehashine
2. UNIX for Dummies Questions & Answers
This is a sample of my data file.
##field PH01000000 1 4869017
WWW278545G0240 P.he_model_v1.0 erine 119238 121805 . - . ID=PH01000000G0240;Description="zinc finger, C3HC4 type domain containing protein, expressed"... (7 Replies)
Discussion started by: sonia102
3. UNIX for Advanced & Expert Users
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
Discussion started by: krishnix
4. UNIX for Dummies Questions & Answers
I have a file which contains huge data as
PDE 1990 1 9 18 51 28.90 24.7500 95.2800 118.0 6.1 0.0 BURMA
event name: 010990D
time shift: 7.3000
half duration: 5.0000
Mrr: ... (7 Replies)
Discussion started by: reva
5. Shell Programming and Scripting
I know how to get this (the lines that have duplicates) :
sort file | uniq -d
But i need opossite of this. I have searched the forum and other places as well, but have found solution for everything except this variant of the problem. (3 Replies)
Discussion started by: necroman08
6. Shell Programming and Scripting
how can I delete the last n lines of a file???
Thanks (7 Replies)
Discussion started by: ncatdesigner
7. Shell Programming and Scripting
i have two files & want to delete the lines from 2nd file which matches with 1st file (2 Replies)
Discussion started by: sameersam
8. Shell Programming and Scripting
I have a file which has about 500K records and I need to delete about 50 records from the file. I know line numbers and am using
sed '13456,13457,......d' filename > new file.
It does not seem to be working.
Any help will greatly appreciated. (5 Replies)
Discussion started by: oracle8
9. Shell Programming and Scripting
what am trying to do is delete a line in a specific file but I dont know what to do. I cant use the sed or awk commands because these commands dont really alter the original file. they only alter what they display on the screen
by the way, am trying to do this from a script so if anybody can... (5 Replies)
Discussion started by: TRUEST
10. UNIX for Dummies Questions & Answers
how can i delete all lines in file by using "vi" ? (6 Replies)
Discussion started by: strok