Sponsored Content
Top Forums Shell Programming and Scripting Print #of lines after search string in a big file Post 302441116 by prash184u on Thursday 29th of July 2010 10:12:52 AM
Old 07-29-2010
Print #of lines after search string in a big file

I have a command which prints #lines after and before the search string in the huge file
Code:
nawk 'c-->0;$0~s{if(b)for(c=b+1;c>1;c--)print r[(NR-c+1)%b];print;c=a}b{r[NR%b]=$0}' b=0 a=10 s="STRING1" FILE

The file is 5 gig big.

It works great and prints 10 lines after the lines which contains search string in the file....

I want to print the 10 lines only if I don't have blank lines in between. I want to print lines until it reaches blank line.

Example .. Currently I get the out put
Code:
Reason: Not Active (This is a string1)
AAAA
BBBB
CCCC
DDDD


Reason: Not Eligible
EEEE
FFFF

I do not want last 3 lines. I want to break the output if it finds the blank line

Thanks in advance gurus....

Moderator's Comments:
Mod Comment Having 28 posts you should be familiar using code tags.

Last edited by prash184u; 07-29-2010 at 11:46 AM.. Reason: Changed the title
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Print lines with search string at specific position

Hi Folks, I have a file with all fields defined by byte position, but any field can be empty so I cannot print lines based on a search of specific columns. I need to print all lines of this file where the string of two characters at byte position 100-101 contains the number 27. Any ideas? ... (4 Replies)
Discussion started by: HealthyGuy
4 Replies

2. Shell Programming and Scripting

How to use sed to search for string and Print previous two lines and current line

Hello, Can anybody help me to correct my sed syntax to find the string and print previous two lines and current line and next one line. i am using string as "testing" netstat -v | sed -n -e '/test/{x;2!p;g;$!N;p;D;}' -e h i am able to get the previous line current line next line but... (1 Reply)
Discussion started by: nmadhuhb
1 Replies

3. Shell Programming and Scripting

search for an expression in a file and print the 3 lines above it

Hi, I have a file like this comment.txt 1.img 2.img 3.img OK x.img y.img z.img not ok 1.img 2.img 3.img bad 1.img 2.img 3.img (7 Replies)
Discussion started by: avatar_007
7 Replies

4. Shell Programming and Scripting

Print lines after the search string until blank line is found

All I want is to look for the pattern in the file...If I found it at # places... I want print lines after those pattern(line) until I find a blank line. Log EXAMPLE : MT:Exception caught The following Numbers were affected: 1234 2345 2346 Error java.lang.InternalError:... (3 Replies)
Discussion started by: prash184u
3 Replies

5. Shell Programming and Scripting

search string in a file and retrieve 10 lines including string line

Hi Guys, I am trying to write a perl script to search a string "Name" in the file "FILE" and also want to create a new file and push the searched string Name line along with 10 lines following the same. can anyone of you please let me know how to go about it ? (8 Replies)
Discussion started by: sukrish
8 Replies

6. Shell Programming and Scripting

Search string and print the above line and below lines?.

if the first string matches then print the previous line and current line and also print the following lines if the other string search matches. Input ------ TranTime 2012 10 12 The Record starts here Accountnumber: 4632473431274 TxnCode 323 TranID 329473242834 ccsdkcnsdncskd... (7 Replies)
Discussion started by: laknar
7 Replies

7. Shell Programming and Scripting

String search and print next all lines in one line until blank line

Dear all I want to search special string in file and then print next all line in one line until blank lines come. Help me plz for same. My input file and desire op file is as under. i/p file: A1/EXT "BSCABD1_21233G1" 757 130823 1157 RADIO X-CEIVER ADMINISTRATION BTS EXTERNAL FAULT ... (7 Replies)
Discussion started by: jaydeep_sadaria
7 Replies

8. Shell Programming and Scripting

Script to search every file in a directory and print last few lines

Hi everyone, I need to write a script to search a directory, output the name of a file to an ouput file and print the last few lines of the files to the output file such that I would have something like this: FILE1: LINE LINE LINE FILE2: LINE LINE LINE FILE3: LINE LINE LINE... (2 Replies)
Discussion started by: mojoman
2 Replies

9. UNIX for Beginners Questions & Answers

Search directory for string and print file name

Good Evening Folks - I have a need to search a specific directory and ALL sub-directories for the following string: Data Load UpdatedIf this string is found, I need to print content from the line directory above it between symbols, as well as the file name where it is found. Here is a... (1 Reply)
Discussion started by: SIMMS7400
1 Replies
cat(1)							      General Commands Manual							    cat(1)

Name
       cat - concatenate and print data

Syntax
       cat [ -b ] [ -e ] [ -n ] [ -s ] [ -t ] [ -u ] [ -v ] file...

Description
       The  command reads each file in sequence and displays it on the standard output.  Therefore, to display the file on the standard output you
       type:
       cat file
       To concatenate two files and place the result on the third you type:
       cat file1 file2 > file3
       To concatenate two files and append them to a third you type:
       cat file1 file2 >> file3
       If no input file is given, or if a minus sign (-) is encountered as an argument, reads from the standard input file.  Output is buffered in
       1024-byte blocks unless the standard output is a terminal, in which case it is line buffered.  The utility supports the processing of 8-bit
       characters.

Options
       -b   Ignores blank lines and precedes each output line with its line number.

       -e   Displays a dollar sign ($) at the end of each output line.

       -n   Precedes all output lines (including blank lines) with line numbers.

       -s   Squeezes adjacent blank lines from output and single spaces output.

       -t   Displays non-printing characters (including tabs) in output.  In addition to those representations used with the -v  option,  all  tab
	    characters are displayed as ^I.

       -u   Unbuffers output.

       -v   Displays  non-printing  characters (excluding tabs and newline) as the ^x.	If the character is in the range octal 0177 to octal 0241,
	    it is displayed as M-x. The delete character (octal 0177) displays as ^?.  For example, is displayed as ^X.

See Also
       cp(1), ex(1), more(1), pr(1), tail(1)

																	    cat(1)
All times are GMT -4. The time now is 03:12 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy