Adding a columnfrom a specifit line number to a specific line number


Login or Register for Dates, Times and to Reply

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Adding a columnfrom a specifit line number to a specific line number
# 1  
Java Adding a columnfrom a specifit line number to a specific line number

Hi,

I have a huge file & I want to add a specific text in column. But I want to add this text from a specific line number to a specific line number & another text in to another range of line numbers.

To be more specific: lets say my file has 1000 lines & 4 Columns. I want to add text "Hello" to 5th column but from line 1 to line 200. & I want to add another text "goodbye" to 5th column of the same file from line 201 to 800 & another text "live" again to 5th column to the same file from line 801 to 1000.

I know I can use sed to add a column to my file but I don't know how to tell sed to add this column to from line & to to line.


Code:
$ sed 's/\(.*\) \(.*\) \(.*\) \/\1 \2 \3 \  Desired string/' input > output

this will add my desired string to the 4th column in the right place but I don't know how to limit this to a specific range of lines.

May be there is a way to do it in sed or may be awk?

Any help will be very welcome.

Thanks in advance,
Ezy
# 2  
Code:
awk ' NR >=1 && NR <= 200 { print $0 " Hello" }
        NR >=201 && NR <=800 { print $0 " Goodbye"}
        NR >=801 && NR <=1000 { print $0 " live"}' <filename>

# 3  
Java works perfectly fine

Oh thanks a lot....this works perfectly fine & it seems fast enough to work with huge files.

Thanks a lot Smilie
Login or Register for Dates, Times and to Reply

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #796
Difficulty: Medium
Fractions in binary arithmetic terminate only if 2 is the only prime factor in the denominator.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

sed command to replace a line at a specific line number with some other line

my requirement is, consider a file output cat output blah sdjfhjkd jsdfhjksdh sdfs 23423 sdfsdf sdf"sdfsdf"sdfsdf"""""dsf hellow there this doesnt look good et cetc etc etcetera i want to replace a line of line number 4 ("this doesnt look good") with some other line ... (3 Replies)
Discussion started by: vivek d r
3 Replies

2. Shell Programming and Scripting

Cut from specific line number to a line number

Hi All, I've a file like this.. Sheet1 a,1 a,2 a,3 a,4 a,5 Sheet2 a,6 a,7 a,8 a,9 a,10 Sheet3 a,11 a,12 a,13 (7 Replies)
Discussion started by: manab86
7 Replies

3. Shell Programming and Scripting

adding line number to *end* of records in file

Given a file like this: abc def ghi I need to get to somestandardtext abc1 morestandardtext somestandardtext def2 morestandardtext somestandardtext ghi3 morestandardtext Notice that in addition to the standard text there is the line number added in as well. What I conceived is... (4 Replies)
Discussion started by: edstevens
4 Replies

4. Shell Programming and Scripting

Write $line number into textfile and read from line number

Hello everyone, I don't really know anything about scripting, but I have to manage to make this script, out of necessity. #!/bin/bash while read -r line; do #I'm reading from a big wordlist instructions using $line done Is there a way to automatically write the $line number the script... (4 Replies)
Discussion started by: bobylapointe
4 Replies

5. UNIX for Dummies Questions & Answers

How to read contents of a file from a given line number upto line number again specified by user

Hello Everyone. I am trying to display contains of a file from a specific line to a specific line(let say, from line number 3 to line number 5). For this I got the shell script as shown below: if ; then if ; then tail +$1 $3 | head -n $2 else ... (5 Replies)
Discussion started by: grc
5 Replies

6. Shell Programming and Scripting

How would i delete a line at specific line number

Hi guys , I m writing a script to delete a line at particular location. But i m unable to use variable for specifying line number. for example. sed -n '7!p' filename works fine and deletes 7th line from my file but sed -n '$variable!p' filename gives following error. sed: -e... (12 Replies)
Discussion started by: pinga123
12 Replies

7. Shell Programming and Scripting

using sed to replace a specific string on a specific line number using variables

using sed to replace a specific string on a specific line number using variables this is where i am at grep -v WARNING output | grep -v spawn | grep -v Passphrase | grep -v Authentication | grep -v '/sbin/tfadmin netguard -C'| grep -v 'NETWORK>' >> output.clean grep -n Destination... (2 Replies)
Discussion started by: todd.cutting
2 Replies

8. Shell Programming and Scripting

merging line and adding number

I having file below o/p ibapp311dg,,20480,s,,,,,,,,, test,,20480,s,,,,,,,,, test,,20480,s,,,,,,,,, ibapp311dg,,20480,s,,,,,,,,, I want to to chk unique word line in the first field seperated by , as well as addup corressponding the number in field for each unique word like ibapp311dg... (8 Replies)
Discussion started by: tarunn.dubeyy
8 Replies

9. Shell Programming and Scripting

how to get the data from line number 1 to line number 100 of a file

Hi Everybody, I am trying to write a script that will get some perticuler data from a file and redirect to a file. My Question is, I have a Very huge file,In that file I have my required data is started from 25th line and it will ends in 100th line. I know the line numbers, I need to get all... (9 Replies)
Discussion started by: Anji
9 Replies

10. Shell Programming and Scripting

Appending line number to each line and getting total number of lines

Hello, I need help in appending the line number of each line to the file and also to get the total number of lines. Can somebody please help me. I have a file say: abc def ccc ddd ffff The output should be: Instance1=abc Instance2=def Instance3=ccc Instance4=ddd Instance5=ffff ... (2 Replies)
Discussion started by: chiru_h
2 Replies

Featured Tech Videos