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Top Forums Shell Programming and Scripting Perl : Arrays : where are these spaces coming from Post 302877739 by apmcd47 on Tuesday 3rd of December 2013 08:20:00 AM
Old 12-03-2013
There is a built-in output field separator which inserts a single space between your array elements. It is controlled by the variable $" so you can change it. See my example below:
Code:
$ cat print_arr.pl
#!/bin/perl

@arr = ('this', 'is', 'the', 'life');

print "@arr\n";

$" = "";
print "@arr\n";

$" = "\n";
print "@arr\n";

$ perl print_arr.pl 
this is the life
thisisthelife
this
is
the
life
$

By default spaces are printed between the words "this is the life", By changing $" to "" (null string) no spaces are printed. By changing $" to "\n" (the linefeed character) each word is printed on a different line. Check out the perlvar man page for more information.

Andrew
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NPRINT(1)							      nprint								 NPRINT(1)

NAME
nprint - NetWare print client SYNOPSIS
nprint [ -S server ] [ -h ] [ -U username | -n ] [ -C ] [ -q queuename ] [ -d job-description ] [ -p pathname-in-banner ] [ -B username-in- banner ] [ -s ] [ -f filename-in-banner ] [ -l lines ] [ -r rows ] [ -c copies ] [ -t tab size ] [ -T ] [ -N ] [ -F form-number ] filename DESCRIPTION
With nprint, you can print files on print queues of a NetWare file server. There are a lot of options, so you should probably wrap some default configurations into some shell scripts. nprint looks up the file $HOME/.nwclient to find a file server, a user name and possibly a password. See nwclient(5) for more information. Please note that the access permissions of .nwclient MUST be 600, for security reasons. OPTIONS
filename filename is the name of the file you want to print. If file is '-', or no filename is given, standard input is used. -h -h is used to print out a short help text. -S server server is the name of the server you want to use. -U username username is the user name to use for the print request at the server. -P password password is the password to use for the print request at the server. If neither -n nor -P are given, and the user has no open connec- tion to the server, nprint prompts for a password. -n -n should be given if no password is required for the print request. -C By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off this conversion by -C. -q queuename queuename is the name of the print queue to use at the print server. At present, you must specify it in upper case characters. -d job-description job-description is the string that appears in pconsole when you list the jobs for the print queue. It will also appear in the "Descrip- tion" field on the banner page. -p pathname-in-banner pathname-in-banner is the string (up to 79 characters) you want to be printed in the "Directory" field on the banner page. -B username-in-banner username-in-banner is the string (up to 12 characters) you want to appear on the lower part of the banner page. It will also appear in the "User name" field. -s Supress printing of banner page -f filename-in-banner filename-in-banner is the string (up to 12 characters) you want to appear in large letters on the lower part of the banner page. Default: the name of the file that is printed, or 'stdin'. -l lines lines is the number of lines to put on one page. Default: 66. -r rows rows is the number of rows to put on one page. Default: 80. -c copies copies tells the print server to the specified number of copies. Default: 1. -t tabs tabs is the number of spaces to print for a Tab-Character. Default: 8. -T tells the print server to expand Tab-Character and use 8 spaces -N tells the print server not to use Form Feeds -F form-number form-number is the the number of the form to be put into the printer. If it's different from the one currently in the printer, your job is only printed if a printer operator has put in the correct form. NOTES
The '-B' option was formerly '-b'. But it conflicted with 'bindery only' login option. SEE ALSO
nwclient(5), slist(1), pqlist(1), ncpmount(8), ncpumount(8) CREDITS
nprint was written by Volker Lendecke (lendecke@math.uni-goettingen.de) nprint 12/27/1995 NPRINT(1)
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