Get N lines before a pattern

Hei buddies, Need ur help once again.

I have a file which has bunch of lines which starts from a fixed pattern and ends with another fixed pattern. I want to make use of these fixed starting and ending patterns to select the bunch, one at a time.

The input file is as follows. Hi welcome blah blah blah blah blah blah Bye** Hi welcome blah blah blah blah blah blah blah blah bl

Hello,

I am trying to modify 2 files, to yield results in a 3rd file. File-1 is a 8-columned file, separted with tab.

Code:   1234:1 xyz1234 blah blah blah blah blah blah 1234:1 xyz1233 blah blah blah blah blah blah 1234:1 abc1234 blah blah blah blah blah blah n/a RRR0000 blah blah blah blah blah blah n/a RRR0000 blah blah blah blah blah blah 9876:2 htg234 blah blah blah blah blah b

Hi All. I have a file that contains some special characters and I'm trying to use AWK to search for lines between <pattern1> and <pattern2>. As an example: I need the lines between the line containing ' select_id="x_0 ' and the line containing the next instance of ' from '.

Dear Buddies, Need ur help once again. I have a flat file with around 20 million lines (Huge file it is). However, many of the lines are of no use hence I want to remove it. To find and delete such lines we have certain codes written at the starting of each line. Basis that we can delete the lines.

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

Hi people, I am new to shell scripting, My problem is i have the output of a shell command in one file,and an output of another command in another file, what i want is, I want to append the output of the second command at a particular location of the first file recursively.

Ex:(OUTPUT OF Ist COMMAND)File 1 -->

Code: -------------------blah blah blah some link(/blah/blah/blah) blah blah --

I've got a set of data piping into a bash script.

I've been doing some experiments with "replaceall" function to change content of a file.

Code: cat my.log blah blah blah < 1  djfh jsdfhk jksdfh < 2  dshkfl opeir pqowi < 4 khasd wouipeui say i am perfroming some action similar to below...

Code: cat my.log | egrep "<" | awk -F' ' '{print $2}' | grep -v "[A-Za-z]" it gives output as below

Code: 1 2 4 is there anyway to modify above same command so that output is displayed li