Hi,
I'm curious about the advantage of forking and executing a program in a user shell as opposed to forking and executing the program directly without the user shell.
For example:
why is it often like:
SSHD->fork&exec(shell, sftp-server)->fork&exec(sftp-server)
And Not like:
... (2 Replies)
Hi All,
Can we pass arguments while calling the perl script and as well as ask user input during execution of the script?
My program is as below:
I am passing arg1 and arg2 as argements to test.pl
]./test.pl arg1 arg2
Inside the test.pl I have :
print "Do you want a name ? (y/n) : ";... (2 Replies)
If I want all user input to start with " : " if not display error
or what I asking is how to do if statement that control a first letter of string that we want to start with. and not worry about the rest
Thank (1 Reply)
Hi, I want to list all file that match user input ( specified shell wildcard) but when I compile it dont list me
#!/usr/bin/perl -w
print "Enter Advance Search Function: ";
chomp ($func = <STDIN>);
my @files = glob("$func");
foreach my $file (@files)
{
print "$file\n";... (1 Reply)
Hi, How to create array every time user input and store user input and display all array
print " Enter input "
my @input = split(' ', $input)
chmop($input = <STDIN>;
foreach ($input)
{
@array= @input;
}
print @array"\n"; (1 Reply)
I have a program that returns a shell script and I want to execute the script.
I'll use cat in my simple example, but wget is an example that is feasible.
$ # First setup a script
$ echo "ls
> df" > simple
$ # "cat simple" is now a program that returns a script
$ cat simple
ls
df
$ ... (3 Replies)
Please tell me how to write a perl script that asks the user to enter words and that passes them to a variable.
In bash, the "read" command would achieve such user interaction.
#!/bin/bash
read -p "Enter files: " vFiles
However, I am looking for perl version of something equivalent... (2 Replies)
Hello friends . I am newbie to perl scripting but still managed to write a code but i am stuck at a place where i need help . Below is the code and can someone help me in taking user input for changing the font size for a html table .Thank you in advance
#!/bin/ksh
echo " Enter the Directory... (4 Replies)
Hi Team,
Can you pls advise in java how can we call a shell script, actly I have a shell script at the following location
/opt/dd/ajh.sh
now I can execute this script by opening the session through putty by entering the servers details and password and then navigating to the following... (2 Replies)
I am creating a bash that uses perl . The below code closes before the input is entered. If I run the perl as a .pl it is fine. What am I doing wrong? Thank you :).
#!/bin/bash
cd 'C:\Users\cmccabe\Desktop\wget'
wget -O getCSV.txt http://xxx.xx.xxx.xxx/data/getCSV.csv
print... (4 Replies)
Discussion started by: cmccabe
4 Replies
LEARN ABOUT DEBIAN
pperl
PPERL(1p) User Contributed Perl Documentation PPERL(1p)NAME
PPerl - Make perl scripts persistent in memory
SYNOPSIS
$ pperl foo.pl
DESCRIPTION
This program turns ordinary perl scripts into long running daemons, making subsequent executions extremely fast. It forks several processes
for each script, allowing many processes to call the script at once.
It works a lot like SpeedyCGI, but is written a little differently. I didn't use the SpeedyCGI codebase, because I couldn't get it to
compile, and needed something ASAP.
The easiest way to use this is to change your shebang line from:
#!/usr/bin/perl -w
To use pperl instead:
#!/usr/bin/pperl -w
WARNINGS
Like other persistent environments, this one has problems with things like BEGIN blocks, global variables, etc. So beware, and try checking
the mod_perl guide at http://perl.apache.org/guide/ for lots of information that applies to many persistent perl environments.
Parameters
$ pperl <perl params> -- <pperl params> scriptname <script params>
The perl params are sent to the perl binary the first time it is started up. See perlrun for details.
The pperl params control how pperl works. Try -h for an overview.
The script params are passed to the script on every invocation. The script also gets any current environment variables, the current working
directory, and everything on STDIN.
Killing
In order to kill a currently running PPerl process, use:
pperl -- -k <scriptname>
You need to make sure the path to the script is the same as when it was invoked.
Alternatively look for a .pid file for the script in your tmp directory, and kill (with SIGINT) the process with that PID.
ENVIRONMENT
pperl uses the PPERL_TMP_PATH environment variable to determine the directory where to store the files used for inter-process
communication. By default, the subdirectory .pperl of the user's home directory is used.
BUGS
The process does not reload when the script or modules change.
$^S is not represented identically with respect to perl, since your script will be run within an eval block
AUTHOR
Matt Sergeant, matt@sergeant.org. Copyright 2001 MessageLabs Ltd.
SEE ALSO
perl. perlrun.
perl v5.14.2 2011-11-15 PPERL(1p)