Sponsored Content
Top Forums UNIX for Dummies Questions & Answers perl pack and unpack commands Post 302257677 by preyan_s on Wednesday 12th of November 2008 11:11:02 PM
Old 11-13-2008
Try this :)

perl -e "$var=help"; -e "print unpack 'H*',$var"
68656c70

I think in your previous case the instance of the variable is lost if u r invoking the statements individually.(correct me if am wrong)
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl + pack() + spaceing question

ok guys and gals at the moment i am perplexed (prolly cuz i been looking at it to long) but here it is. OS: sol8 perlver: 5.8.0 shell: ksh answer must be in perl!! issue: when i use pack() it packs the data at the front of the requested field space. normally it wouldnt be a problem if... (1 Reply)
Discussion started by: Optimus_P
1 Replies

2. UNIX for Dummies Questions & Answers

does any body know how to unpack this file?????

this file i'm trying to unpack is a cloop file (1 Reply)
Discussion started by: amicrawler2000
1 Replies

3. Shell Programming and Scripting

Perl help!! (pack()?)

Hello everyone. I wrote a perl script to get the two answers from a value: x. By this, I want to do sqrt($x) in different precision. #!/usr/bin/perl print "Input the initial value x:\n"; chomp($x=<STDIN>); $comp=sqrt($x); $float_value=pack("f", $comp); $double_value=pack("d", $comp);... (2 Replies)
Discussion started by: Euler04
2 Replies

4. UNIX for Dummies Questions & Answers

simple unpack script

hi all.... I'm a newbie to Shell scripting and am trying to make a simple script that can unpack a variety of .tgz , .zip, .tar or .tar.gz archives to the a current directory i want the script to create a folder equivalent to the base name of the archive and then move the archive to a... (18 Replies)
Discussion started by: jboss
18 Replies

5. Shell Programming and Scripting

[PERL] Running unix commands within Perl Scripts

I understand that in order to run basic unix commands I would normally type at the prompt, I would have to use the following format system(ls -l); or exec(ls -l); But when I actually try to use the command, the script fails to compile and keeps telling me there is an error with this line. ... (1 Reply)
Discussion started by: userix
1 Replies

6. Shell Programming and Scripting

Bash equivalent of perl's pack function ?

Is there an equivalent of perl's pack function in bash ? Or in other words, how can I achieve the same thing in bash ? Much appreciated. (1 Reply)
Discussion started by: NewDeb
1 Replies

7. UNIX for Advanced & Expert Users

Perl-to-Oracle performance: DBI-pack visa 'sqlplus' usage

I wondering if anybody tried already or know about the performance to process some Oracle staff from Perl. I see it could be done by the DBI pachage (so, I guess, it is interface to the OCI, but who know how sufficiant it is..,) with all gemicks around (define, open, parce, bind,.. ), or it can... (8 Replies)
Discussion started by: alex_5161
8 Replies

8. UNIX for Dummies Questions & Answers

perl pack and unpack commands

I am using pack/unpack to encyrpt a file. syntax is below #!/bin/sh encrypt=`perl -e 'print unpack "H*","yourpassword"'` - echo $encrypt >/file/to/store/encrypted/password pass=`cat /file/to/store/encrypted/password` decrypt=`perl -e 'print pack "H*",$pass'` ... (2 Replies)
Discussion started by: erinlomo
2 Replies

9. Shell Programming and Scripting

Pack and unpack localtime in perl script

Hi I have a code like this: sub WriteEbcdicHeader { my $Htimestamp=localtime();#i need to pack and unpack this my $eheaderline = $Htimestamp; #packing has to be done here #unpacking has to be done after packing print $EOUTFILE return $eheaderline; } sub WriteEbcdicTrailer { ... (5 Replies)
Discussion started by: rbathena
5 Replies

10. Shell Programming and Scripting

what is the difference between commands compress, pack and gzip

Are the above commands does the same job ? same functionaliy ? If so, why do we have three utilities for the same functinality. (1 Reply)
Discussion started by: frintocf
1 Replies
llconvert(8)						      System Manager's Manual						      llconvert(8)

NAME
llconvert - Modify lastlog records from DIGITAL UNIX releases 4.0x and prior to new format SYNOPSIS
/usr/lbin/llconvert [-vnrp?h] input_file [output_file] OPTIONS
Restore new format to old format. Verbose. Display lines while converting. Do not preserve contents of input file. Formatted print only. Do not convert. (May be used with the -r option). Display usage message. DESCRIPTION
The llconvert command reads records from the lastlog file, such as /var/adm/lastlog, and converts the record format to the updated struct lastlog format. If no output file is specified or if the output file path is identical to the input file path, llconvert makes a backup copy of the original input file using the following algorithm: If filename.orig exists. Where n is a unique number. The llconvert command attempts to detect an input file that is in the wrong format (for example, input file is already a new format file). A warning message is issued in this case, but conversion continues. RETURN VALUES
Success. An error occurred. EXAMPLES
To convert an old format accounting file to the new format: llconvert /var/adm/lastlog.prev Upon completion of this command, /var/adm/lastlog.prev will have been converted to the new format. The original /var/adm/last- log.prev is renamed to: /var/adm/lastlog.prev.orig To convert a lastlog file in new format to the old format: llconvert -r /var/adm/lastlog /var/adm/last- log.old FILES
Lastlog header file that defines the format for the lastlog file. The active lastlog file. SEE ALSO
Commands: finger(1) llconvert(8)
All times are GMT -4. The time now is 05:06 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy