Perl Search and replace entire line


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Perl Search and replace entire line
# 1  
Old 05-22-2008
Perl Search and replace entire line

I have a perl function in my script that needs to replace an entire line in a file

Code:
sub changestate {
  my $base = ();
  my @base = ();

    open(BASE, $file) || die("Could not open file!");
    @base=<BASE>;
    close (BASE);

      foreach $base(@base)
        {
          if($base =~ /sslCACert=/){
             $base =~ s/sslCACert=/sslCACert=myserver.domain\/path/gi;
             print ("Hello, world!\n");
          }
  open (BASE, ">$file");
  print BASE @base;
  close (BASE);
    };
}

the problem is the line:

Code:
base =~ s/sslCACert=/sslCACert=myserver.domain\/path/gi;

The base sslCACert= I want to replace is followed by random garbage depending on which machine the file is on the only thing constant is sslCACert= . Can i use any wildcards? Also does a \ escape a / like in a shell script with perl. The Hello World is just there for testing.

Sean
# 2  
Old 05-22-2008
You can use wild card matching, a dot is a wild card match in a perl regexp:

/./ matches any single character
/.*/ matches zero or more of anything
/.+/ matches one or more of anything


\ does escape the character to the right of it on the search side (the left side) of a regexp.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help with sed to replace entire line

Hi, I need to replace an entire mailx line as follows using sed: sed -e 's/<line1>/<newline>/g' <filename> But I am getting comman garbled error since the new line has many special characters. I enclosed allspecial chars in \ but still no use. Can any one help me? Please use code... (2 Replies)
Discussion started by: vinodhin4
2 Replies

2. Shell Programming and Scripting

Multiple line search, replace second line, using awk or sed

All, I appreciate any help you can offer here as this is well beyond my grasp of awk/sed... I have an input file similar to: &LOG &LOG Part: "@DB/TC10000021855/--F" &LOG &LOG &LOG Part: "@DB/TC10000021852/--F" &LOG Cloning_Action: RETAIN &LOG Part: "@DB/TCCP000010713/--A" &LOG &LOG... (5 Replies)
Discussion started by: KarmaPoliceT2
5 Replies

3. UNIX for Advanced & Expert Users

Search and replace a line in perl

Hi All, i can replace a perticular value in sentence using perl. perl -pi -e 's/old/new/' sample.txt but i am not able to replace whole string by perl. file1 contains "jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.147.109.211)(PORT=1526))(CONNECT_DATA=(SID= MWDBD22)))". i... (3 Replies)
Discussion started by: arindam guha
3 Replies

4. Shell Programming and Scripting

perl search and replace - search in first line and replance in 2nd line

Dear All, i want to search particular string and want to replance next line value. following is the test file. search string is tmp,??? ,10:1 "???" may contain any 3 character it should remain the same and next line replace with ,10:50 tmp,123 --- if match tmp,??? then... (3 Replies)
Discussion started by: arvindng
3 Replies

5. Shell Programming and Scripting

Replace entire line

I want to replace one line from my configuration file with the new settings. The file Name: /etc/httpd/conf/httpd.conf The following line should be replaced with the line mentioned below. LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "\"%h\"... (3 Replies)
Discussion started by: shantanuo
3 Replies

6. UNIX for Advanced & Expert Users

command to replace the entire line from the key point

Hi everyone I am new to Unix. I got stuck up by small issue. I have text file something like this abc 'xyz' '5' lmn 'pqr' '7' i want to replace the abc 'xyz' '5' to abc 'xyz' '6' but i have a key as 'xyz' based on this key i want to do that. I am not aware of how to use sed... (7 Replies)
Discussion started by: Vijayaragavan
7 Replies

7. UNIX for Dummies Questions & Answers

grep question: stop search from finding entire line

Sorry for the title, I really don't know how to word this question or what to even search for. I tried "grep one match", "grep 1 match", "stop grep" on both google and here and haven't found something that helps, so here I go: I have a file that's about 1.5 million lines long, every line looks... (3 Replies)
Discussion started by: rmoakler
3 Replies

8. UNIX for Dummies Questions & Answers

Search for a string and copy the entire line

Hello All, I am after the script or the command which can scan the entire file for a string $PART_ID and when found to extract/copy the corresponding $PART_ID value (e.g THIRE_PTY_SOFTWARE for the 1st occurance of $PART_ID in the attached file) to a file. Appreciate your help. Thanks in... (3 Replies)
Discussion started by: forumthreads
3 Replies

9. Shell Programming and Scripting

Replace Entire line if any part matches regexp

Hey guys, I have a file that I've slowly been awking, seding, and greping for data entry. I am down to pull the addresses out to insert them into an excel file. Each address is a few lines, but i want to put a semicolon delimiter in between each address so I can export the text file into excel and... (6 Replies)
Discussion started by: Cocoabean
6 Replies

10. Shell Programming and Scripting

Perl: Search for string on line then search and replace text

Hi All, I have a file that I need to be able to find a pattern match on a line, search that line for a text pattern, and replace that text. An example of 4 lines in my file is: 1. MatchText_randomNumberOfText moreData ReplaceMe moreData 2. MatchText_randomNumberOfText moreData moreData... (4 Replies)
Discussion started by: Crypto
4 Replies
Login or Register to Ask a Question

Featured Tech Videos