UNIX for Dummies Questions & Answers

I have a requirement where I have to read the lines between a repeated string

FileName: abc.txt

Code:

ls /data/abc.txt

1
2
#ZENCO
3
4
5
6
#ZENCO
11
213
454
7
#ZENCO

I need to output this 3 times based on #ZENCO

How to get data between #ZENCO. I can add #ZENCO as header but how to read data between a particular string.

Your request is ambiguous. What output are you hoping to produce?

Do you have an alias for ls that echoes an empty line and then performs a cat? Or, is the line starting with ls part of the data contained in abc.txt?

Sorry, ls is not part of data.

It's just path where file exist.

---------- Post updated at 04:18 PM ---------- Previous update was at 04:15 PM ----------

So, if I need lines from first #ZENCO to #ZENCO, how would I do it and similarly if I need to get lines from third #ZENCO to #ZENCO how would I get it.


Just need a common command, I can pass the valued at runtime with the etl tool

Please give us details; not nebulous requirements.

The output I need is

3
4
5
6

I have no idea how you would get those 5 lines of output from the sample input you provided. And, you refused to answer most of the questions I asked. So, we have to assume that you have not made any attempt to solve this problem on your own, are not interested in learning how to solve problems on your own, and are only interested in using this forum as your unpaid programming staff.

So, here is a simple command that will produce the output you said you want on any operating system using any shell as long as you have permission to read your input file:

Code:

print "%s\n" "" 3 4 5 6 < /data/abc.txt

Lines between m=1 and the following occurrence of the string:

Code:

awk '/#ZENCO/ {if (++c>m) exit; next} (c==m)' m=1 abc.txt