perl statement help
 

Maybe I am too tired, but is there any thing wrong with this statement ?

it brings back

in stead of

8
9
10
13
14

Thanks

Maybe if you explained what your trying to accomplish here?

If your trying to count the lines in the file there are easier ways to do it.

Maybe this?

#!/usr/bin/perl

$i = 0;
open (MYFILE, 'test');
while(<MYFILE>){
print "$i\n";
$i++;
}
close(MYFILE);

outputs:

$ ./add
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

Ok the script I am working on is supposed to insert image in excel sheet, so once it insert
some thing on one point I want it to add 12 in the count before it continue its operation(adding data in the execl)

like

1-data
2-data
3- image-start
4
5
6
7
8
..
15-image-finish
16-data
17-data



So, why isn't my code adding 12 into $i ?

Syntax error:)

#!/usr/bin/perl
$i = 0;
open (MYFILE, 'test');
while(<MYFILE>){
print "$i\n";
if ($i == 10){
$i = $i + 12;
}
$i++;
}
close(MYFILE);

outputs:

$ ./add
0
1
2
3
4
5
6
7
8
9
10
23
24
25
26
27
28
29
30
31
32
33

Right now, your code loop the file (dunno what is your file so let assume it's a text file)
as long as it loop, you print $i (before incrementing) and you increment it by 1 until it reach 10. So it will not add 12 at the count of 4. Once you reach 10 it become $i become 22 and is increment by 1 to become 23 and 23 is print. Since i is still bigger than 10, it's being add 12 so 35 + 1 and 36 is displayed and so one.


Let assume you want to follow the schema you wrote.

As Savona pts out, there's a syntax error; square brackets indicate an array.
You should ALWAYS (Perl Best Practice) start a Perl prog
An alternate to the -w switch is 'use warnings;'.
These 2 cmds will save you a heap of trouble, trust me.
Also, because Perl is heavily C derived, you could increment the '12' like this
http://perldoc.perl.org/
http://www.perlmonks.org/?node=Tutorials