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Replace text in a file

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# 1  
Old 04-11-2016
Replace text in a file
I wrote a program using Perl to find and replace a text within a file.

The text that needs to be replaced in the file is 'sql7.0.1' with 'sqls715'. When I execute my program I get an error message:

Quote:
can't /tmp/odbc.ini_old : A file or directory in the path name does not exist
Here is my code:

Code:
 
#!/usr/bin/perl

use strict;
use warnings;

my $filename = '/tmp/odbc.ini.2014_old';
my $find=' sql7.0.1 ';
my $replace = ' sqls715  ';

{
   local @ARGV =($filename);
   local $^I ='.bac';
   while (<>) {
     if (s/$find/$replace/ig) {
}
 else {
   print;
   }
 }
}
print "Finished";

Moderator's Comments:
Mod Comment Moved from AIX forum to "Shell Programming and Scripting"
Last edited by Scrutinizer; 04-11-2016 at 10:42 PM.. Reason: missing letter in replace
# 2  
Old 04-11-2016
Hello dellanicholson,

I think error message is self explanatory itself, could you please check that file named odbc.ini_old is really present in your box at /tmp or not, most probably it is not, in case it is present then we could sense that it could be an another issue.

Thanks,
R. Singh
# 3  
Old 04-12-2016
Did check the path and it is not the case.
# 4  
Old 04-12-2016
Is $filename name /tmp/odbc.ini.2014_old or /tmp/odbc.ini_old?

The code shown above will remove the line matching the string. For replacing string try updating to:
Code:
#!/usr/bin/perl

use strict;
use warnings;

my $filename = '/tmp/odbc.ini.2014_old';
my $find=' sql7.0.1 ';
my $replace = ' sqls715 ';

{
   local @ARGV =($filename);
   local $^I ='.bac';
   while (<>) {
      if (s/$find/$replace/ig) {
         print;
      } else {
         print;
      }
   }
}
print "Finished\n";

(after the $filename is verified)
This User Gave Thanks to rdrtx1 For This Post:
dellanicholson
# 5  
Old 04-12-2016
Replace text in a file
$filename name /tmp/odbc.ini.2014_old is correct

The error message is:

Code:
can't /tmp/odbc.ini.2014_old : A file or directory in the path name does not exist

# 6  
Old 04-12-2016
try:
Code:
#!/usr/bin/perl

use Cwd(realpath);

my $filename = "/tmp/odbc.ini.2014_old";
my $find=' sql7.0.1 ';
my $replace = ' sqls715 ';
{
   local @ARGV =($filename);
   local $^I ='.bac';
   while (<>) {
      if (s/$find/$replace/ig) {
         print;
      } else {
         print;
      }
   }
}
print "Finished\n";

This User Gave Thanks to rdrtx1 For This Post:
dellanicholson
# 7  
Old 04-13-2016
Thanks
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