perl sleep command

Perl's original designer was Larry Wall (Larry Wall), which was published on December 18, 1987. Perl borrows the features of C, sed, awk, shell scripting, and many other programming languages. Larry Wall Published version 1.0 of the Perl scripting

Perl as an explanatory language, is very popular with the system administrators, the benefits of not much to say, the disadvantages of many, such as the support of the thread has been not good, so most of the time, we need a number of processes to

A brief description of http://www.perldoc.com/perl5.6/pod/perlmodlib.html for some common modules Use modules in Perl:Module: http://www.cpan.org/modules/01modules.index.htmlInstallation module:1. Perl makefile. pl2. Make3. Make Test4. Make

Built-in variable $_:Let's take a look at an example: Copy Code code as follows: #!/usr/bin/perl-w @array = QW (a b c d); foreach (@array) { Print $_, ""; } The role of an example is to define an array and print out the

Recently, perl has been re-consolidated, and the previous beginner's code has been changed, so that win's cmd can use the linux method to add password verification to cmd.The following describes how to automatically execute linux. bat when you set

Author: A Hui http: farmerluo. googlecode. how to install comfilescheck_redis.pl: When the script uses the perl Redis database, you must first install this: # perl-MCPAN-eshell # installRediswgethttp: farmerluo. googlecode.

Perl Common function set 2 I. Process processing functions1. Process startup FunctionFunction Name evalCall the syntax eval_r (string)The description regards string as a Perl statement execution.After the command is correctly executed, the

Sometimes we execute a script, because some programs in the script are suspended and time-out, which affects our judgment on the next step. At will, it is necessary to set the timeout settings for functions and processes so that they can return a

I. Process processing functions 1. Process startup Function Function Name eval Call the syntax eval (string) Describe the stringPerlStatement execution. After the command is correctly executed, the system variable $ @ is an empty string. If an error

PHP implements the linux command tail-f and phplinuxtail-f. PHP implements the linux command tail-f and phplinuxtail-ftail to write the file to the standard output from the specified point. you can use the-f option of the tail command to