retaining only the second line with a pattern and deleting all others
Hi,
I have a file:
5 T1AxialPremosaic ok 512 448 23 1 284000-000005-000001.dcm
6 T2_SPACE ok 256 256 176 1 465000-000006-000001.dcm
7 FLAIRmosaic ok 512 432 23 1 748000-000007-000001.dcm
8 T2_SPACE ok 256 256 1 171000-000008-000001.dcm
9 T2_SPACE ok 256 256 1 218000-000009-000001.dcm
32 T1AxialPostmosaic ok 512 448 23 1 836000-000032-000001.dcm
33 MEMPRAGE ok 256 256 704 1 408000-000033-000001.dcm
34 MEMPRAGE ok 256 256 176 1 767000-000034-000001.dcm
35 MEMPRAGE ok 256 256 1 380000-000035-000001.dcm
36 MEMPRAGE ok 256 256 1 178000-000036-000001.dcm
...and I would like to retain only the second line with the pattern MEMPRAGE (preferably using just RAGE and in a case-insensitive manner). I've tried different things with awk:
but for this guy (above), I don't know how to keep only the second occurrence. I've also tried various plays on this one-liner:
But this isn't quite right either. The bottom line is that I don't understand awk, sed or grep well enough to get it done quickly. Any help would be greatly appreciated. Thanks.
hi guys,
i have a directory.inside that so many directories and files are there.i want to search the complete directory for a pattern in all the .txt files.if i will find that pattern then i want to delete that pattern from that file.
please help me out.
i want it urgent (18 Replies)
I have a file that will sometimes contain a pattern. The pattern is this:
W/D FRM CHK 00
I want to find any lines with this pattern, delete those lines, and also delete the line above and the line below. (1 Reply)
I have a file that will sometimes contain a pattern. The pattern is this:
FRM CHK 0000
I want to find any lines with this pattern, delete those lines, and also delete the line above and the line below. (4 Replies)
say i have a file with the following contents
0x20
0x20
0xc23886
> 0xc12354
> 0xc567555555
i want to delete "> " pattern and keep the rest of the file (6 Replies)
Hi All,
Please can someone assist in the script I have made that searches a pattern in a file and delete the whole line containing the pattern.
#!bin/sh
# The pattern that user want to add to the files
echo "Enter the pattern of the redirect"
read value
# check if the user has... (1 Reply)
I am trying to delete a pattern without removing line. I searched a lot in this forum and using those I could come up with sed command but it seems that command does not work. Here's how my file looks like:
1 ./63990 7
1171 ./63990 2
2425 ./63990 9
2539 ./63990 1
3125 ./63990 1
10141... (7 Replies)
Hi,
I have got the below requirement. please suggest.
I have a file like,
Processing Item is:
/data/ing/cfg2/abc.txt
/data/ing/cfg3/bgc.txt
Processing Item is:
/data/cmd/for2/ght.txt
/data/kernal/config.klgt.txt
I want to process the above file to get the output file like,
... (5 Replies)
Hi
I have a file:
r58778.3|SOURCES={KEY=f665931a...,fw,221-705}|ERRORS={16_1:T,30_1:T,56_1:C,57_1:T,59_1:A,101_1:A,115:-,158_1:C,186_1:A,204:-,271_1:T,305:-,350_1:C,368_1:G,442_1:C,472_1:G,477_1:A}|SOURCE_1="Contig_1092402550638"(f665931a359e36cea0976db191ff60ff09cc816e)
I want to retain... (15 Replies)
I am trying to combine lines with these conditions:
1. First line starts with text of "libname VALUE db2 datasrc" where VALUE can be any text.
2. If condition1 is met then continue to combine lines through a line that ends with a semicolon.
3. Ignore case when matching patterns and remove any... (5 Replies)