sed or awk to parse this text Post: 302449528

Sponsored Content

Top Forums Shell Programming and Scripting sed or awk to parse this text Post 302449528 by agama on Monday 30th of August 2010 11:17:14 PM

08-31-2010

Registered User

Quote:

Originally Posted by bulgin

Agama thank you for your reply. Are you suggesting I run this like:

awk -f awk.script testfile.txt

because that is producing errors.

I generally put it into a kshell script, but you can run it that way provided that you do NOT put the awk command nor the opening/closing single quotes into awk.script.

I assumed you were probably adding it to an existing ksh/bash script, something like this (replace ksh with bash if you prefer bash):

Code:

#!/usr/bin/env ksh
awk '
        /^[*]/ {                            # new section 
                if( snarf )
                        printf( "\n" );         # terminate the last section
                snarf = 1;                      # open the section
                n = index( $0, "-" );           # find first -
                printf( "%s ", substr( $0, n+1 ) );     # print everything after the first dash
                next;
        }

        NF == 0 { 
             if( snarf )
             {
                  snarf = 0; 
                  printf( "\n" );
              }
              next; 
       }     #terminate section on blank line

        snarf > 0 {                         # if in section print this line. 
                printf( "%s ", $0 );
                next;
        }

        END {
                if( snarf )                    # need to finish the last section with newline
                        printf( "\n" );
        }'   <test_file.txt

I hope that is a bit clearer.

---------- Post updated at 23:17 ---------- Previous update was at 23:16 ----------

If you are still having issues with it, please post the error messages.

agama

View Public Profile for agama

Find all posts by agama

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

To parse through the file and print output using awk or sed script

suppose if u have a file like that Hen ABCCSGSGSGJJJJK 15 Cock ABCCSGGGSGIJJJL 15 * * * * * * : * * * . * * * : Hen CFCDFCSDFCDERTF 30 Cock CHCDFCSDHCDEGFI 30 * . * * * * * * * : * * :* : : . The output shud be where there is : and . It shud...

2. Shell Programming and Scripting

awk/sed Command : Parse parameter file / send the lines to the ksh export command

Sorry for the duplicate thread this one is similar to the one in https://www.unix.com/shell-programming-scripting/88132-awk-sed-script-read-values-parameter-files.html#post302255121 Since there were no responses on the parent thread since it got resolved partially i thought to open the new...

3. Shell Programming and Scripting

awk/sed Command: To Parse Stament between 2 numbers

Hi, I need an awk command that would parse the below expression Input Format 1 'Stmt1 ............................'2 'Stmt2 ............................'3 'Stmt3 ............................'4 'Stmt4 ............................'5 'Stmt5 ............................'6 'Stmt6...

4. Shell Programming and Scripting

parse xm entry with awk/sed

Hi folks, I have XML files with the following sections (section occurs once per file) in them: <AuthorList CompleteYN="Y"> <Author ValidYN="Y"> <LastName>Bernal</LastName> <ForeName>Federico</ForeName> ...

5. Shell Programming and Scripting

Use awk or sed to parse delimited string

Hi I am trying to figure out the best way to search a long log file and print out certain information. For example if I had a line in a log file delimited by ampersand first_name=mike&last_name=smith&zip_code=55555&phone=555-5555&state=ma&city=boston and I only wanted to search for and...

6. Shell Programming and Scripting

sed/awk script to parse list of bandwidth rules

Hello all gurus, I have a long list of rules as below: 20 name:abc addr:203.45.247.247/255.255.255.255 WDW-THRESH:12 BW-OUT:10000000bps BW-IN:15000000bps STATSDEVICE:test247 STATS:Enabled (4447794/0) <IN OUT> 25 name:xyz160 addr:203.45.233.160/255.255.255.224 STATSDEVICE:test160...

7. Shell Programming and Scripting

[solved] Awk/shell question to parse hour minute from text

Hi, I have a quick question on parsing the hour/minute and value from a text file and remove the seconds portion. For example in the below text file: 20:26:01 95.83 20:27:01 96.06 20:28:01 95.99 20:29:01 7.11 20:30:01 5.16 20:31:01 8.27 20:32:02 9.79 20:33:01 11.27 20:34:01 7.83...

8. Shell Programming and Scripting

awk to parse file and display result based on text

I am trying using awk to open an input file and check a column 2/field $2 and if there is a warning then that is displayed (variantchecker): G not found at position 459, found A instead. The attached Sample1.txt is that file. If in that column/field there is a black space, then the text after...

9. Shell Programming and Scripting

awk or sed? rows text to co

Hello Friends! I would like to help the masters ... I have a file with the entry below and would like a script for that output: Input file: 001 1 01-20152142711532-24S 1637909825/05/2015BAHIA SERVICOS R F, ...

10. Shell Programming and Scripting

awk to parse field and include the text of 1 pipe in field 4

I am trying to parse the input in awk to include the |gc= in $4 but am not able to. The below is close: awk so far: awk '{sub(/\|]+]++/, ""); print }' input.txt Input chr1 955543 955763 AGRN-6|pr=2|gc=75 0 + chr1 957571 957852 AGRN-7|pr=3|gc=61.2 0 + chr1 970621 ...

LEARN ABOUT CENTOS

nsd-checkconf

nsd-checkconf(8)						    nsd 3.2.12							  nsd-checkconf(8)

NAME

       nsd-checkconf - NSD configuration file checker.

SYNOPSIS

       nsd-checkconf [-v] [-h] [-o option] [-z zonename] [-s keyname] configfile

DESCRIPTION

       nsd-checkconf  reads  a	configuration  file. It prints parse errors to standard error, and performs additional checks on the contents. The
       configfile format is described in nsd.conf(5).

       The utility of this program is to check a config file for errors before using it in nsd(8) or zonec(8). This program can also be  used  for
       shell scripts to access the nsd config file, using the -o and -z options.

OPTIONS

       -v     After  reading  print  the  options  to  standard output in configfile format. Without this option, only success or parse errors are
	      reported.

       -h     Print usage help information and exit.

       -o option
	      Return only this option from the config file. This option can to be used in conjunction with the -z option.  The special value zones
	      prints out a list of configured zones.

	      This  option  is primarily used by nsdc to parse the config file from the shell. If the -z option is given, but the -o option is not
	      given, nothing is printed.

       -s keyname
	      Prints the key secret (base64 blob) configured for this key in the config file. Used to help shell scripts parse the config file.

       -z zonename
	      Return the option specified with -o for zone 'zonename'.

	      If this option is not given, the server section of the config file is used.  This option is primarily used by nsdc to parse the con-
	      fig file from the shell.

	      The -o, -s and -z option print configfile options to standard output.

FILES

       /etc/nsd3/nsd.conf
	      default NSD configuration file

SEE ALSO

       nsd(8), nsdc(8), nsd.conf(5), nsd-notify(8), nsd-patch(8), nsd-xfer(8), zonec(8)

AUTHORS

       NSD was written by NLnet Labs and RIPE NCC joint team. Please see CREDITS file in the distribution for further details.

NLnet Labs							   jul 19, 2012 						  nsd-checkconf(8)