Im trying to write a bash script that has an if statment that when the user enters ONLY that exact argument, will echo what follows that conditon.
For example:
Basically, if i specify anything other then 1 as this cmd files argument, it wont output anything.
But if i do specify 1 it will output the value that Var1 is holding... Another problem tha t i was having is that it will output when any 1 argument is passed. For example if 2 arguments are passed it wont output anything. If no arguments are passed it wont output anything. But it really doesnt matter what 1 argument i specify, it will output as long as 1 argument is givin.
What im trying to figure out from that point is how to write an if statement that looks for an exact match of that 1 argument that the user would specify.
Can someone please help me with this SHELL script?
I need to create a script that gets a positive number n as an argument. The script must calculate the factorial of its argument. In other words, it must calculate n!=1x2x3x...xn. Note that 0!=1.
Here is a start but I have no clue how to... (3 Replies)
I opened strict.pm and found some not understandable stuff, please let me know if you have any Idea on the same.
1) Line 23 => $bits |= (what is $= here how it affect the statement)
2) Line 36 => $^H (what is that I haven't found any statement on this in google)
3) Line 41 =>... (3 Replies)
If ($argv == “-debug”) then
Echo “in loop”
Endif
But this is not working. If I modify this code and remove “-“, then it works.
Similarly I am getting problem using grep command also
Grep “-debug” Filename
Can someone please help me on how to resolve these... (1 Reply)
Hi All,
I am running the script
VBoxManage list vms |sed 's/"//g' | cut -d " " -f1 > har1out.mytxt
result=`cat har1out.mytxt | grep $1'
echo $result
echo $1
{
if
then
echo pass
else
echo fail
fi (2 Replies)
I installed gcc4 today using setup.exe from cygwin. However, I cannot run any of my perl program after that. For example,
Run@Run-THINK /home
$ perl Process.pl
Can't locate strict.pm in @INC (@INC contains: /usr/lib/perl5/5.10/i686-cygwin /
usr/lib/perl5/5.10... (0 Replies)
What are the different ways to disable ssh strict checking? I've seen this mentioned a few times but it doesn't seem to be working.
$ ssh -o 'StrictHostKeyChecking no' admin@hostnamehttp://docs.oracle.com/cd/E35328_01/E35336/html/vmcli-ssh.html
Is there a file somewhere in /etc that I could... (4 Replies)
How do I get past the error when using strict and GetOpts ?
#!/usr/bin/perl
use strict;
use Getopt::Std;
# Process the command line options
die "Usage: $0 -r <router> -u <username> -p <password> -e <enable password>\n" if (@ARGV < 6);
exit if (!getopts('r:u:p:e:'));
my... (3 Replies)
Discussion started by: popeye
3 Replies
LEARN ABOUT FREEBSD
escape
escape(1) Mail Avenger 0.8.3 escape(1)NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)