I have a file with 65 sets of 35 coordinates, and would like to isolate these coordinates so that I can easily copy the coordinates to another file. The problem is, I've got a 9 line header before each set of coordinates (so each set is 44 lines long). There are a zillion threads out there about deleting whole lines out of a file, so I figured I would give one of those a shot. First I split the big file into a bunch of little ones using:
and then did what I thought would delete the first 9 lines of every file with output in the file name, combining everything back into one big file again:
However, after I ran that I noticed that in newfile, only the first 9 lines of the first ouput file were deleted while every other file remained unchanged. Further, an additional header
had been added on!
What am I doing wrong?
tl;dr how do you delete lines 1-9, 45-53, 89-97, etc in a file?
Is there an easy way to delete the first so many lines in a log file?
like I have a log file that has 10000 lines, i want to just get rid of the first 9000. (2 Replies)
Hi
I have a file & always I need to remove or delete last 2 lines from that file. So in a file if I have 10 lines then it should return me first 8 lines.
Can someone help me? (4 Replies)
HI
I'm looking to delete lines ending with .tk from below data file
---------
abc.tk
mgm.tk
dtk
mgmstk
------
I have written below code
----
sed '/.tk *$/d' dat_file.txt > temp.txt
----
But its deleting all the lines ending with tk. I need to delete only the lines ending .tk
my... (5 Replies)
We have a server that logs transactions to a file. I want to write a script that will delete the first 50 lines of the file daily without renameing the file or moving the file. (8 Replies)
Good morning!!! Im a newbie with shell programing and i was wondering if there is a way to delete certain new lines from a file, here is an example of my current file:
>seq_0
GTGAGATTGCTAATGAGCTGCTTTTAGGGGGCGTGTTGTGCTTGCTTTCC
AACTTTTCTAGATTGATTCTACGCTGCCTCCAGCAGCCACCCCTCCCATC... (11 Replies)
Hi,
I have a big (2.7 GB) text file. Each lines has '|' saperator to saperate each columns.
I want to delete those lines which has text like '|0|0|0|0|0'
I tried:
sed '/|0|0|0|0|0/d' test.txt
Unfortunately, it scans the file but does nothing.
file content sample:... (4 Replies)
Hello,
I have a file filled with dates, such as:
04-08-2011 message
04-08-2011 message
03-08-2011 message
01-08-2011 message
31-07-2011 message
24-07-2011 message
15-07-2011 message
13-12-2008 message
26-11-2007 message
And I want to delete those lines whose date is older than 10... (5 Replies)
Hi Guys ,
I have two files say a1 and a2 having following contents
a1
dag
wfd
a2
dag
wfd
chire
hcm
I want to delete only the lines in a2 which are in a1 and final output of a2 should be
a2
chire
hcm (6 Replies)