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Full Discussion: Finding a text in files & replacing it with unique strings
Top Forums Shell Programming and Scripting Finding a text in files & replacing it with unique strings Post 302761521 by gordom on Friday 25th of January 2013 07:43:11 PM
Old 01-25-2013
Finding a text in files & replacing it with unique strings
Hallo Everyone.
I have to admit I'm shell scripting illiterate . I need to find certain strings in several text files and replace each of the string by unique & corresponding text.
I prepared a csv file with 3 columns: <filename>;<old_pattern>;<new_pattern>

Code:
dominik@dominik-VirtualBox:~/Pulpit/test/1$ cat file.csv
 file1.txt;abc;123
 file2.txt;XYZ;6789

A very kind guy (much more skilled than me) helped me with the script:

Code:
dominik@dominik-VirtualBox:~/Pulpit/test/1$ cat script.sh
 for i in `cat file.csv`; do
 file=`echo $i | cut -d ";" -f1`;
 pattern1=`echo $i | cut -d ";" -f2`;
 pattern2=`echo $i | cut -d ";" -f3`;
 sed -i "s/$pattern1/$pattern2/" $file;
 done

To find & replace text I run the script and grep:

Code:
dominik@dominik-VirtualBox:~/Pulpit/test/1$ bash script.sh
dominik@dominik-VirtualBox:~/Pulpit/test/1$ grep . file{1,2}*

With the above file.csv example the script works fine and do what's intended. The problem starts if <old_pattern> and <new_pattern> text have white spaces:

Code:
dominik@dominik-VirtualBox:~/Pulpit/test/1$ cat file.csv
 file1.txt;abc jkl nm;1 2 3
 file2.txt;XYZ rt;67 89

In that case script returns errors.I tried to modify file.csv by putting text between quotation marks but it didn't help. How the script should be adjusted to work with text consisting of white spaces? I would appreciate any help from you. Thank you very much in advance. Regards,
gordom
Last edited by gordom; 01-28-2013 at 09:20 AM.. Reason: deleting text formatting
 

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LEARN ABOUT DEBIAN

bb-csvinfo.cgi

BB-CSVINFO.CGI(1)					      General Commands Manual						 BB-CSVINFO.CGI(1)

NAME

       bb-csvinfo.cgi - CGI program to show host information from a CSV file

SYNOPSIS

       bb-csvinfo.cgi

DESCRIPTION

       bb-csvinfo.cgi  is  invoked  as	a CGI script via the bb-csvinfo.sh CGI wrapper.  Based on the parameters it receives, it searches a comma-
       separated file for the matching host, and presents the information found as a table.

       bb-csvinfo.cgi is passed a QUERY_STRING environment variable with the following parameters:

	  key (string to search for, typically hostname)
	  column (columnnumber to search - default 0)
	  db  (name of the CSV database file in $BBHOME/etc/, default hostinfo.csv)
	  delimiter (delimiter character for columns, default semi-colon)

       CSV files are easily created from e.g. spreadsheets, by exporting them in CSV format. You should have one host per  line,  with	the  first
       line  containing  the  column headings. Despite their name, the default delimiter for CSV files is the semi-colon - if you need a different
       delimiter, invoke bb-csvinfo.cgi with the "delimiter=<character>" in the query string.

Example usage
       This example shows how you can use the bb-csvinfo CGI. It assumes you have a CSV-formatted file with information about the hosts stored	as
       $BBHOME/etc/hostinfo.csv, and the hostname is in the first column of the file.

       Use with the bbgen --docurl
	      The  --docurl  option to bbgen(1) sets up all of the hostnames on your Xymon webpages to act as links to a CGI script. To invoke the
	      bb-csvinfo CGI script, run bbgen with the option

		 --docurl=/cgi-bin/bb-csvinfo.sh?db=hostinfo.csv&key=%s

SEE ALSO

       bb-hosts(5), hobbitserver.cfg(5), bbgen(1)

Xymon							    Version 4.2.3:  4 Feb 2009						 BB-CSVINFO.CGI(1)
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