A newbie to shell scripting.....
I need some assistance in doing the following:
I have a system generated text file(a makefile basically).
Before I can execute the make command, I need to modify one section of this generated file.
The generated section is as follows:
# INCLUDE macro... (5 Replies)
In other news, I have a colors text file with hundreds of lines, and I want to print only the even numbered lines. for example I have this file looks something like this:
ALLCOLORS.TXT
red red green red
blue red red red
green red red blue
green green green
blue blue blue
red blue blue blue... (1 Reply)
I need some help deleting lines in a file that contain spaces. Im sure awk or sed will work but i dont know much about those commands. Any help is appreciated :D (7 Replies)
I have one base file, and multiple target files-- each have uniform line structure so no need to use grep to find things-- can just define sections by line number.
My question is quite simple-- can I use sed to copy a defined block of lines (say lines 5-10) from filename1.txt to overwrite an... (3 Replies)
Hi everyone,
I have two files (A and B) and want to combine them to one by always taking 10 rows from file A and subsequently 6 lines from file B. This process shall be repeated 40 times (file A = 400 lines; file B = 240 lines).
Does anybody have an idea how to do that using perl, awk or sed?... (6 Replies)
I have a diff command that does what I want but when comparing large text/log files, it uses up all the memory I have (sometimes over 8gig of memory)
diff file1.txt file2.txt | grep '^<'| awk '{$1="";print $0}' | sed 's/^ *//'
Is there a better more efficient way to find the lines in one file... (5 Replies)
I have a file that needs to be parsed into multiple files every time there line contains a number 1. the problem i face is the lines are random and the file size is random. an example is that on line 4, 65, 187, 202 & 209 are number 1's so there has to be file breaks between all those to create 4... (6 Replies)
Dear all,
I have a question. I have a txt file say 4000 rows X 1800 Column. I 'd like to creat a new column as the first column which is a column of random numbers (n=4000)
thanks a lot!
Lin (2 Replies)
Hi
I have a file with contents:
NAMES
John
carrey
williams
How can I get all the names and store them in seperate variables(or arrays)
please keep in mind that the no. of such names is not known.Three here is a bogus value
~thanks (4 Replies)