/usr/bin/perlusestrict;usewarnings;useGetopt::Long;my$verbose=0;my$file='';GetOptions('verbose'=>\$verbose,'file=s'=>\$file,)ordie"Error in command line arguments\n";if($verbose){print"Verbose mode on\n";}if($file){print"File name is $file\n";}print"Hello, world!\n";...
Perl command line args and the @ARGV array WithPerl, command-line arguments are stored in a special array named@ARGV. So you just need to read from that array to access your script's command-line arguments. ARGV array elements:In the ARGV array,$ARGV[0]contains the first argument,$ARGV[...
or, from a DOS command-line like this perl argv.pl 1 2 3 4 you'll get this result:thanks, you gave me 4 command-line arguments:1 2 3 4 As you can see, it prints all the command line arguments you supply to the Perl program.
# The array @ARGV contains the command-line arguments intended for the script. main(@ARGV);
GetOptions( "input=s" => \$input_file, # 带有参数的选项,使用"s"表示字符串 "output=s" => \$output_file, # 带有参数的选项,使用"s"表示字符串 "verbose" => \$verbose, # 标志选项,没有参数 ) or die "Error in command line arguments.\n"; # 检查选项是否正确解析 ...
How to read command-line arguments with Perl 博客分类: perlPerl Submitted by alvin on August 9, 2009 - 8:41pm tags: args arguments argv command line perl perl read source code Perl command line FAQ: How do I read command-line arguments with Perl (command line args)? Answer: With ...
my $name = "ajanuw"; my $age = 0; GetOptions ("name=s" => \$name, # string "age=i" => \$age) # string or die("Error in command line arguments\n"); print "$name - $age \n";执行上面的脚本:$ perl temp.pl --name=Ajanuw --age=12 Ajanuw - 12 或则...
#!/usr/bin/perl # Function definition sub Average { # get total number of arguments passed. $n = scalar(@_); $sum = 0; foreach $item (@_) { $sum += $item; } $average = $sum/$n; return $average; } # Function call $num = Average(10, 20, 30); print "Average for the...
All command line arguments, environment variables, locale information (see perllocale), results of certain system calls ("readdir()", "readlink()", the variable of "shmread()", the messages returned by "msgrcv()", the password, gcos and shell fields returned by the "getpwxxx()" calls)...
perl中getoptions用法在Perl中,`GetOptions`模块用于解析命令行参数。以下是一个简单的示例: ```perl #!/usr/bin/perl use Getopt::Long; my $help; my $verbose; GetOptions( "help|?" => \$help, "verbose" => \$verbose, ) or die("Error in command line arguments ");...