Perl map doubt Post: 302374326

10 More Discussions You Might Find Interesting

1. 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...

2. Shell Programming and Scripting

Perl script doubt?

Dear friends, I have two files. In first file first column ($1), i have numbers. The second file containes, the same number in the fourth column($4). I need a output file, matching the first file column 1 with second file column 4. The main thing is the output file lines will be sorted...

3. Shell Programming and Scripting

Doubt in Perl Variable declaration

Anyone please say what is the difference between $var and ${var} in perl Sometimes $var used and sometimes ${var} used in same program. Thanks in Advance, Prabhu ---------- Post updated at 09:34 AM ---------- Previous update was at 05:59 AM ---------- Any one please clarify

4. Shell Programming and Scripting

Grep and map in perl

Hi guys, I'm trying to learn grep and map and having a little problem. Let's say I have a file which contains: Apple: abcdcabdadddbac I want to replace any combinations of three of abcd, thus when I do this: print grep {s/{3}/X/g} <F>; # will do the subtitution fine, output XXXX ...

5. Shell Programming and Scripting

How to map the values of an array in perl?

Hi, I have 2 arrays: @names=qw(amith veena chaitra); @files=qw(file.txt file1.txt file3.txt); There is one to one relationship between names and files. There needs to be mapping created between names and files. The output should be like this: amith --> file.txt veena --->...

6. Shell Programming and Scripting

Trivial perl doubt about FILE

Hi, In the following perl code: #!/usr/bin/perl -w if (open(FILE, "< in_file")) { while (<FILE>) { chomp($_); if ($_ =~ /patt$/) { my $f = (split(" ", $_)); print "$f\n"; } } close FILE; } Why changing the "FILE" as...

7. Shell Programming and Scripting

perl doubt

Hi, Please help me to understand the following code: perl -lne 'print if "$_ " =~ /(5 (?:\d+ ){5})\1/' What the regular expression "?:" does? Also, whether the expression "\1" is the same as in sed (i.e) printing the elements inside pair of parentheses?

8. Shell Programming and Scripting

Looping in Perl based on defined keys in Map

Hello All, I am writing the below script where it will connect to database and returns the results. #!/sw/gcm/perl510/bin/perl use SybaseC; &openConnection; &loadvalues; sub openConnection { $dbproc = new SybaseC(SYDB}, $ENV{DBDFLTUSR}, $ENV{DBDFLTPWD}); if...

9. Shell Programming and Scripting

Perl combine multiple map statements

I have a file like file. file.TODAY.THISYEAR file.TODAY.LASTYEARI want to substitute the words in caps with their actual values so that output should look like file.140805 file.140805.2014 file.140805.2013For this I am reading the file line bye line in an array and using multiple map...

10. Shell Programming and Scripting

Understanding an example of perl map() function

Hello, I have many folders under which there is always a file with the same name, which contains the data I need to process later. A perl oneliner was borrowed perl -e 'print "gene_id\t", join("\t", map {/(.*)\//; $1} @ARGV),"\n";' *_test.trim/level.csvto make a header so that each column...

LEARN ABOUT DEBIAN

abootimg

ABOOTIMG(1)						      General Commands Manual						       ABOOTIMG(1)

NAME

       abootimg - manipulate Android Boot Images.

DESCRIPTION

       Tool to read/write/update android boot images

SYNOPSIS

       abootimg
	-i <bootimg>
       abootimg
	-x <bootimg> [<bootimg.cfg> [<kernel> [<ramdisk> [<secondstage>]]]]
       abootimg
	-u <bootimg> [-c "param=value"] [-f <bootimg.cfg>] [-k <kernel>] [-r <ramdisk>] [-s <secondstage>]
       abootimg
	--create <bootimg> [-c "param=value"] [-f <bootimg.cfg>] -k <kernel> -r <ramdisk> [-s <secondstage>]

OPTIONS

       -i     print boot imgage informations

       -x     Extract a boot image

       -u     Update a boot image

       --create
	      Create a boot image

   Options for extracting boot images
       bootimg
	      Existing bootimage to use

       bootimg.cfg
	      Name for the bootimg.cfg file, defaults to bootimg.cfg

       kernel Name for the kernel image, defaults to zImage

       ramdisk
	      Name for the ramdisk image, defaults to initrd.img

       secondstage
	      Name for the second-stage image, defaults to stage2.img

   Options for updating and creating boot images
       bootimg
	      Existing bootimage to use

       -c param=value
	      Existing bootimage to use

       -f <bootimg.cfg>
	      Update bootimg.cfg with the named file

       -k <kernel>
	      Update kernel with the named file

       -r <ramdisk>
	      Update ramdisk with the named file

       -s <secondstage>
	      Update secondstage image with the named file

																       ABOOTIMG(1)