I came across this code, would appreciate if someone can tell me if my understanding is correct?
the perl code tell the system to cat file 1 into file 2, if command fails, print the warning statement?
I am a little confused by the test condition:
if ( system ("/bin/cat $File1 >> $File2") ) Is it testing for successful writing or unsuccessful writing ?
I am totally new to unix commands but I need to understand the following command which is a part of a perl script..what does this mean?
myPwd = $(pwd)
myTracker = $myPwd/myTracker.out
exec > $myTracker 2>&1 (1 Reply)
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)
Hi all,
In the directory '/temp/chris' the following files exist: chris.tar, chris.txt
What i am trying to do is to assign the 'chris.tar' filename in an argument through perl, in order to do that i use the system command:
$file=system("ls /temp/chris/*.tmp), but in the '$file' the exit... (2 Replies)
hi Guys,
I am planning to write a program which can be able to execute scripts/commands which needs a user to be root.
Note: we are not interested to use sudoers option.
.e.g. The requirement can be explaind as:
A normal UNIX system user cannot execute above command(veritas cluster... (3 Replies)
Executing two unix commads via perl script one after another
e.g: make clean
bsub -i -q short make
have tried using exec but the second command doesnt executes (1 Reply)
I have an Oracle database running on AIX, and I have a procedure that is calling OS commands from an oracle (and it's not working anymore)...
so, there was an Java stored proc in Oracle
CREATE OR REPLACE AND RESOLVE JAVA SOURCE NAMED COMMON."Host" as import java.io.*;
public class Host {... (1 Reply)
i have four commands
1. perl -MCPAN -e shell
2. o conf prerequisites_policy follow
3. o conf commit
4. exit
I am attempting to streamline a bunch of yum commands and cpan installations and want to remove the confirmation portion of the cpan these four commands will do just that. my... (2 Replies)
Hi,
I am not able to run below command on linux, it however works on solaris. If anyone knows the reason and a solution for it can you please let me know ?
Linux
-----
$> ksh 'echo hi'
ksh: echo hi: No such file or directory
$> which ksh
/usr/bin/ksh
Solaris
------
$> ksh 'echo... (2 Replies)
I am trying to run SSH , mkdir and other unix commands using Perl CGI. But i am not able to Execute these commands.
Please help me out !!!!
SSH and mkdir is necessity for me.
I will be thankful to you...!!!!!
I am trying like:
In perl CGI file i am writing like: @list = `ssh... (28 Replies)
Hi guys, I'm having issues getting the following snippet of my script to work and was hoping for some suggestions.
I'm trying to pass a variable in perl system with wget.
This is what I need help with:
#!/usr/bin/perl
use strict;
use warnings;
use POSIX qw(strftime) ;
my... (3 Replies)
Discussion started by: timj123
3 Replies
LEARN ABOUT DEBIAN
bzexe
BZEXE(1) General Commands Manual BZEXE(1)NAME
bzexe - compress executable files in place
SYNOPSIS
bzexe [ name ... ]
DESCRIPTION
The bzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a
penalty in performance). For example if you execute ``bzexe /bin/cat'' it will create the following two files:
-r-xr-xr-x 1 root bin 9644 Feb 11 11:16 /bin/cat
-r-xr-xr-x 1 bin bin 24576 Nov 23 13:21 /bin/cat~
/bin/cat~ is the original file and /bin/cat is the self-uncompressing executable file. You can remove /bin/cat~ once you are sure that
/bin/cat works properly.
This utility is most useful on systems with very small disks.
OPTIONS -d Decompress the given executables instead of compressing them.
SEE ALSO bzip2(1), znew(1), zmore(1), zcmp(1), zforce(1)CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the
PATH environment variable to find gzip and some other utilities (tail, chmod, ln, sleep).
BUGS
bzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases,
using chmod or chown.
BZEXE(1)