Find text between lines in linux

I have a log-file where at the end of a series of lines you can see if this block is relevant now I'm looking for a command like sed to delete de blocks ending with "Content-Length: 0" and beginning with the last "--" before this line.

I tried sed -n "/--/,/Content-Length: 0/d" but this takes the first "--" and the first "Content-Length: 0" and deletes it.

ex :

line 1 "--" line 2 line 3 "

Running below line gives 3957 as length of longest line in file 20121119_SRMNotes_init.dat

Code: awk ' { if ( length > 3950 ) { x = length } }END{ print x }' 20121119_SRMNotes_init.dat While wc -L 20121119_SRMNotes_init.dat gives output as 4329. Why is there a difference between these two commands.

Thanks

Hi,

I have a issue, I need to loop through a comma delimited file and check for the length which exceeds specified length , if Yes truncate the string. But my problem is , I do not have to check for all the fields and the field lenght is not same for all the fields.

For ex:

Say my line ahjdh,dfhkajhdf,adhklf,eiour

say I need to check length only for 2nd and 4th and max length for 2nd is 6

I would like to write a script that takes something like this: Line 1 Line 2 Line 3 Line 4 [Blank line] Line 6 Line 7 Line 8 Line 9 [Blank line] etc....

And makes it to look like this: Line 1|Line 2|Line 3|Line 4|[Blank line, if it's easier] Line 6|Line 7|Line 8|Line 9|[Blank line, if it's easier] etc.

I would think it would be fairly easy to use two loops, one for the the 5-li

Hello all ,

I have two files a.txt and b.txt which have same content . They contain data that is fetched from database through a java program. When I delete a line in a.txt and run the below command

comm -13 a.txt b.txt

I am not getting the expected result i.e. the line i deleted from a.txt. Instead i am getting the two lines i.e. the line I deleted and the line following it.

Hi,

Need help on the below topic.

I am looping finger command and trying to get each line content into a variable.

hiii alll i wrote a prgm which would take position and strand from file 1 and tries to locate a string 250 characters ahead/before that position in anothe file (based on strand 0 or 1) open my $fhConditions, "<", "1.txt" or die "Epic Fail: $!"; open my $fhCharacters, "<", "2.txt" or die "OMG Fail: $!"; my $length = 250; while (my $

Add a line in a specific position with Linux

If you need to add a line to a file in Linux, and you need to add that line in a specific position of the file there is an easy solution, even if you need to do it to hundreds of thousands of files.

Consider this file:

line 1 line 2 line 4

As you can see we missed line 3, so to add it just execute this command:

sed '3iline 3'

Parts of the comm

Assume I have a big file, ~1k lines, and I need to delete the line after some pattern, lets call it: somePatern.

Conditions:

cannot be done by hand (no searching -- /somePattern, and/or manually moving down one line and deleting). preferably a single liner.