I want to replace the nth charater of a line to '.', with n being line dependent and can be provided on the line itself, e.g. a example file can look like this:
The perl 5.18.2 documentation of splice has this example: my(@a) = splice(@_,0,shift); my(@b) = splice(@_,0,shift); And I wonder: If @_ is evaluated before the
In a network handler dealing with various parameters to get and set I'm using closures heavily. I have a subroutine that receives a closure and builds another c
I was trying to write a Perl program that would take in two strings representing binary numbers (i.e. consisting of only the characters "1" and "0") as input a
These scripts worked fine prior to upgrading to Monterey! I have followed the tutorial from “etresoft” regarding editing the httpd.conf file and res
I have a temp file with contents: a b c d e When I run sed 's#b#batman\nRobin#' temp from command line, I get: a batman Robin c d e However, when I run the c
I have a temp file with contents: a b c d e When I run sed 's#b#batman\nRobin#' temp from command line, I get: a batman Robin c d e However, when I run the c
Why the number decrements by one when converting to integer in Perl? 23/20 * 100000000 => 115000000 int(23/20 * 100000000) => 114999999 Why?
I have a file full of \u codes and want to replace them all with corresponding utf8 character, for example "\u00FC" will become "ü": Here is how far I got:
I'm getting the following error while trying to conect via use FileHandle; use IPC::Open2; $p=open2(\*R,\*W,"cr"); $username = "m"; # your login HERE $passwd
I'm rewriting some perl/charting software in Raku but have run into an issue using the ChartDirector perl5 module (link below) via Inline::Perl5. The module i
Below is perl code which calls P5NCI::load_func to load function load_library having signature as int load_library(int dummy), hence third argument is passed as
Here is my system configuration. Perl-Epic 0.7.8 Strawberry Perl 5.32.1 64 bit. PadWalker 2.5 installed with Strawberry perl Here is what I have already read. h
I'm running macOS Catalina 10.15.7 and I need to install Oracle Instant Client to run run a Perl script that connects to a DB. 1. Installing Oracle Instant Clie
my $dir = $ENV{"CDSSITE_INI_DIR"}; hello, I'm new to Perl. I'm confused with the curly braces above syntax. I know it is declared a scalar variable $dir. But w
my %attrs = ("/ip/service/enable" , "=ftp") ($retval,@results) = Mtik::mtik_cmd(\%attrs); or ($retval,@results) = Mtik::mtik_cmd('/ip/service/enable ftp' , \%a
Can someone help me with this Perl code? When I run it, nothing happens. No errors or anything which is weird to me. It reads in and opens the file just fine. I
I'm using Perl to feed data to an LCD display. The display is 8 characters wide. The strings of data to be displayed are always significantly longer than 8 char
This is what I am trying to achieve: open(my $file,">>","/var/opt/input.txt"); if("/var/opt/input.txt" is opened sucessfully) { do some tasks; } else {
In Perl, the default shell to execute backticks is sh. I'd like to switch to use bash for its richer syntax. So far I found that the suggested solution is `bash