retrieving specific lines from a file - can I use grep ? Post: 302238879

10 More Discussions You Might Find Interesting

1. UNIX Desktop Questions & Answers

grep lines with two specific characters somewhere in the line

I'm having trouble with extracting certain lines from a file based on whether they have all the required fields. Original file: snt:594:Sam N This bpt:2342:Bob P That lr:123 wrp:23:Whoever Person cor:794 Desired output: snt:594:Sam N This bpt:2342:Bob P That wrp:23:Whoever Person ...

2. Shell Programming and Scripting

Extracting specific lines of data from a file and related lines of data based on a grep value range?

Hi, I have one file, say file 1, that has data like below where 19900107 is the date, 19900107 12 144 129 0.7380047 19900108 12 168 129 0.3149017 19900109 12 192 129 3.2766666E-02 ...

3. Shell Programming and Scripting

Retrieving a specific value

I have this input file: I want to get the following output file: Output Basically, the program would scan the file and look for every instance where the value is < 14.0 dB. The program would then print the row that contains that value along with the corresponding name with the ">". Be...

4. Shell Programming and Scripting

Problems to print specific lines with awk and grep...HELP!

Hi all I have data like this: model: 1, misfit value: 0.74987 1 1.182 1.735 2.056 1.867 2 0.503 1.843 2.018 1.888 3 2.706 2.952 2.979 1.882 4 8.015 3.414 3.675 1.874 ...

5. Shell Programming and Scripting

Grep only specific lines ordered by column/date

Hi everybody, I'd like to think I've been through the search tool not only on this site, but also on google too, but I haven't been able to find what I was looking for. If I might've missed something on this forum, please slap me in the face with a link that you consider useful for my query :D ...

6. Shell Programming and Scripting

grep the output between specific lines

Symmetrix ID : 00000001234 Host Name : myown Identifiers Found : 5000000000000000 5000000000000001 Device Cap(MB) Attr Dir:P ------ ------- ---- ---- 1234 25886 (M) 8D:1, 9D:1 0123 25886 (M) 8D:1, 9D:1 1345 25886 (M) ...

7. Shell Programming and Scripting

Grep all lines for a specific date in log-files

I need to grep all lines for "yesterday" in /var/log/messages. Dates are in the format "YYYY-MM-DD".

8. UNIX for Dummies Questions & Answers

Quick UNIX command to display specific lines in the middle of a file from/to specific word

This could be a really dummy question. I have a log text file. What unix command to extract line from specific string to another specific string. Is it something similar to?: more +/"string" file_name Thanks

9. UNIX for Dummies Questions & Answers

Grep specific lines

Hello I have a file with nearly 90000 lines in x,y,z format but have some lines that I do not need to show. Is there anyway to delete those 3 lines after every 288 lines. Eg I keep the first 288 lines delete (289, 290 291); keep the next 288 lines after those and so on... Thanks

10. Shell Programming and Scripting

Grep content between specific lines

cat file1 *FileHeader* Partition 0 Total Data Bytes 1416 Avg Bytes/Record 1416 Others 1 PRDX22.AUDIT_DATA_INFO Partition 4 Total Data Bytes 4615 Avg...

LEARN ABOUT PLAN9

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)

10 More Discussions You Might Find Interesting

1. UNIX Desktop Questions & Answers

grep lines with two specific characters somewhere in the line

Discussion started by: Chthonic

2. Shell Programming and Scripting

Extracting specific lines of data from a file and related lines of data based on a grep value range?

Discussion started by: Wynner

3. Shell Programming and Scripting

Retrieving a specific value

Discussion started by: Ernst

4. Shell Programming and Scripting

Problems to print specific lines with awk and grep...HELP!

Discussion started by: fedora2011