can you explain this perl command?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Perl/Array Sorting : Can someone please explain below code $h{$_}++

sub uniq { my %h; return grep { !$h{$_}++ } @_ } The above code is to remove duplicates from array. I am having hard time understanding below things (basically around highlighted code in bold)- when was the value inserted in hash? and are we only adding a key in Hash not...

2. Red Hat

Please help to explain the command

su - keibatch -c ""date ; /usr/local/kei/batch/apb/bin/JKEIKYK4140.sh -run "&$C$6&" WSUKE100201"" Not clear about : date ; /usr/local/kei/batch/apb/bin/JKEIKYK4140.sh -run "&$C$6&" WSUKE100201 Please help

3. UNIX for Dummies Questions & Answers

Please explain this command?

Hi, I saw this. But I don't know why we need this? ls mydir > foo.txt ## I know what this will do, it will take the results and write to the file called foo.txt ls mydir > foo.txt 2>&1 ## Don't know why we need 2>&1 Thanks.

4. UNIX for Dummies Questions & Answers

Explain perl formatting commands

Could you please tell the meaning of Below mentioned perl script lines: format OWNER_TOTAL = @< Owner Code @<<<<<<total: @#######.## @#######.## @#######.## @#######.## @#######.## @#######.## @#######.## @#######.## @#######.## @#######.## @###### #.## $prev_cust_type, $prev_owner_code,...

5. Shell Programming and Scripting

Can someone please explain what tr#A-Za-z0-9+/# -_#; means in perl?

6. Shell Programming and Scripting

perl: Please explain this for me: $hexdigit = (0 .. 9, 'a' .. 'f')[$num & 15];

This is taken from perlop. I can't understand what's going on, please can someone explain this for me? $hexdigit = (0 .. 9, 'a' .. 'f'); to get a hexadecimal digit

7. UNIX for Advanced & Expert Users

perl explain syntax !!!

hi all i was going through some perl code i came across this line and i am not getting what is exactly going on .. $$this{localtion} = GetName->GetVarName("EXE_DIR") ; what is the red part doing in above code

8. UNIX for Dummies Questions & Answers

Can anyone explain what this command is doing?

Specifically what is the purpose of sed? What is f? Why is the 'cp f $phonefile' line needed when the script �goes live'? Why might that two commands following sed be commented out at the present time ( i.e., during development)? Thanks in...

9. Shell Programming and Scripting

please explain the command

Hi all , please explain the following command : perl -e 'select(undef,undef,undef,.15)' Thanks and Regards Navatha

10. Shell Programming and Scripting

perl doubt plz explain....

hi all i wrote a shell script which uses perl script my code is : >cat filename | while read i >do >perl -e 'require "/home/scripts/abc.pl" ; abc("$i")' >done perl script used will simply check syntax of Cobol programs but it didn't work for me so i asked my colleague he suggested...

LEARN ABOUT CENTOS

paps

PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME

       paps - UTF-8 to PostScript converter using Pango

SYNOPSIS

       paps [options] files...

DESCRIPTION

       paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves
       through the pango ft2 backend.

OPTIONS

       These programs follow the usual GNU command line syntax, with long options starting with  two  dashes  (`-').   A  summary  of  options	is
       included below.

       --landscape
	      Landscape output. Default is portrait.

       --columns=cl
	      Number of columns output. Default is 1.

       --font=desc
	      Set the font description. Default is Monospace 12.

       --rtl  Do rtl layout.

       --paper ps
	      Choose paper size. Known paper sizes are legal, letter, a4. Default is A4.

       --bottom-margin=bm
	      Set bottom margin in postscript points (1/72 inch). Default is 36.

       --top-margin=tm
	      Set top margin. Default is 36.

       --left-margin=lm
	      Set left margin. Default is 36.

       --right-margin=rm
	      Set right margin. Default is 36.

       --help Show summary of options.

       --header
	      Draw page header for each page.

       --markup
	      Interpret the text as pango markup.

       --encoding=ENCODING
	      Assume the documentation encoding is ENCODING.

       --lpi  Set the lines per inch. This determines the line spacing.

       --cpi  Set the characters per inch. This is an alternative method of specifying the font size.

       --stretch-chars
	      Indicates  that  characters  should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops
	      behaviour.

AUTHOR

       paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>.

       This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others).

								  April  17, 2006							   PAPS(1)

Shell Programming and Scripting