PERL TUTORIALS - Perl Directories
Perl Directories
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opendir DIRHANDLE, EXPR # To open a directory readdir DIRHANDLE # To read a directory rewinddir DIRHANDLE # Positioning pointer to the begining telldir DIRHANDLE # Returns current position of the dir seekdir DIRHANDLE, POS # Pointing pointer to POS inside dir closedir DIRHANDLE # Closing a directory.ADVERTISEMENTSDisplay all the files
#!/usr/bin/perl # Display all the files in /tmp directory. $dir = "/tmp/*"; my @files = glob( $dir ); foreach (@files ){ print $_ . "\n"; } # Display all the C source files in /tmp directory. $dir = "/tmp/*.c"; @files = glob( $dir ); foreach (@files ){ print $_ . "\n"; } # Display all the hidden files. $dir = "/tmp/.*"; @files = glob( $dir ); foreach (@files ){ print $_ . "\n"; } # Display all the files from /tmp and /home directories. $dir = "/tmp/* /home/*"; @files = glob( $dir ); foreach (@files ){ print $_ . "\n"; }ADVERTISEMENTS
#!/usr/bin/perl opendir (DIR, '.') or die "Couldn't open directory, $!"; while ($file = readdir DIR) { print "$file\n"; } closedir DIR;
#!/usr/bin/perl opendir(DIR, '.') or die "Couldn't open directory, $!"; foreach (sort grep(/^.*\.c$/,readdir(DIR))){ print "$_\n"; } closedir DIR;Create new directory
#!/usr/bin/perl $dir = "/tmp/perl"; # This creates perl directory in /tmp directory. mkdir( $dir ) or die "Couldn't create $dir directory, $!"; print "Directory created successfully\n";Remove a directory
#!/usr/bin/perl $dir = "/tmp/perl"; # This removes perl directory from /tmp directory. rmdir( $dir ) or die "Couldn't remove $dir directory, $!"; print "Directory removed successfully\n";Change a directory
#!/usr/bin/perl $dir = "/home"; # This changes perl directory and moves you inside /home directory. chdir( $dir ) or die "Couldn't go inside $dir directory, $!"; print "Your new location is $dir\n";