How to exclude a record from unix file


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers How to exclude a record from unix file
# 1  
Old 06-27-2007
How to exclude a record from unix file

I want to exclude records from my unix file that have a specific pattern. How can I do this?
Thanks.
Ryan
# 2  
Old 06-27-2007
Code:
egrep -v 'to_exclude_pattern' input_file > output_file

 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Need help to delete special characters exists only at the end of the each record in UNIX file?

Hi, I have a file in unix with 15 columns.It consists special characters(#,$,^M,@,*,% etc)at the end of the each record.I want to remove these special characters.I used the following: Sed -e 's/ /g;s/ */ /g' . But It is removing special characters exists everywhere in the file(begining,middle... (24 Replies)
Discussion started by: rakeshp
24 Replies

2. Homework & Coursework Questions

awk command to retrieve record 23 and 89 from UNIX file

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: I am looking for awk command to retrieve only the record number 23 and record number 89 from a unix file?... (6 Replies)
Discussion started by: rakeshp
6 Replies

3. UNIX for Beginners Questions & Answers

awk command to retrieve record 23 and 89 from UNIX file

Hi Everyone, I am looking for awk command to retrieve only the record number 23 and record number 89 from a unix file? Please let me know what is the awk command for this? Regards Rakesh (1 Reply)
Discussion started by: rakeshp
1 Replies

4. Shell Programming and Scripting

Help with Getting distinct record count from a .dat file using UNIX command

Hi, I have a .dat file with contents like the below: Input file ============SEQ NO-1: COLUMN1========== 9835619 7152815 ============SEQ NO-2: COLUMN2 ========== 7615348 7015548 9373086 ============SEQ NO-3: COLUMN3=========== 9373086 Expected Output: (I just... (1 Reply)
Discussion started by: MS06
1 Replies

5. Shell Programming and Scripting

Need unix commands to delete records from one file if the same record present in another file...

Need unix commands to delete records from one file if the same record present in another file... just like join ... if the record present in both files.. delete from first file or delete the particular record and write the unmatched records to new file.. tried with grep and while... (6 Replies)
Discussion started by: msathees
6 Replies

6. Shell Programming and Scripting

AWK exclude first and last record, sort and print

Hi everyone, I've really searched for a solution to this and this is what I found so far: I need to sort a command output (here represented as a "cat file" command) and from the second down to the second-last line based on the second row and then print ALL the output with the specified section... (7 Replies)
Discussion started by: dentex
7 Replies

7. Ubuntu

[Solved] Using Find with an exclude/exclude file

I am familiar with using tar and exclude/include files: tar zcf backup.dirs.tgz --files-from=include.mydirs --exclude-from=exclude.mydirs --no-recursion but was wondering if I could use find in the same way. I know that you can just specify the directories to exclude but my list is... (2 Replies)
Discussion started by: metallica1973
2 Replies

8. UNIX for Dummies Questions & Answers

Modify a record in a unix file

I have few records in a file and each file consists of a field for state and country of length 50 characters. Currently it being represented as Austin, Texas(remaining segments upto length 50 are blank) I need to modify this to Austin,Texas(remaining segments upto length 50 are blank) The... (3 Replies)
Discussion started by: jayumon
3 Replies

9. UNIX for Dummies Questions & Answers

how to read record by record from a file in unix

Hi guys, i have a big file with the following format.This includes header(H),detail(D) and trailer(T) information in the file.My problem is i have to search for the character "6h" at 14 th and 15 th position in all the records .if it is there i have to write all those records into a... (1 Reply)
Discussion started by: raoscb
1 Replies

10. Shell Programming and Scripting

remove duplicated xml record in a file under unix

Hi, If i have a file with xml format, i would like to remove duplicated records and save to a new file. Is it possible...to write script to do it? (8 Replies)
Discussion started by: happyv
8 Replies
Login or Register to Ask a Question