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How to check if the URL exists?

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# 1  
Old 02-23-2014
How to check if the URL exists?
Hi,

I need to check if the URL exists.

Below is my OS:

Code:
SunOS mymac1 Generic_148888-04 sun4v sparc SUNW,SPARC-Enterprise-T5220

I do not have the curl set in the profile nor am i aware about its path.

But i have wget. Please help me with params for the same.

Can you help me check if the URL exists from unix shell script?
Last edited by mohtashims; 02-23-2014 at 04:02 AM..
# 2  
Old 02-23-2014
Just an example Try :

Code:
#!/bin/bash

url="https://www.unix.com"

if wget $url >/dev/null 2>&1 ; then
	echo "Url : $url exists..."
else
	echo "Url : $url doesn't exists.."
fi

url="http://www.unixaaaa.com"

if wget $url >/dev/null 2>&1 ; then
	echo "Url : $url exists..."
else
	echo "Url : $url doesn't exists.."
fi

---------- Post updated at 02:47 PM ---------- Previous update was at 02:40 PM ----------

You can create function something like this and call

Code:
#!/bin/bash



url(){
	if [ ! -z "$1" ]; then
		wget "$1" >/dev/null 2>&1 
		[ "$?" -eq 0 ] && echo "Url : $1 exists..." || echo "Url : $1 doesn't exists.."
	else
		echo "No Arguments..exiting" & exit
	fi
}


url "https://www.unix.com"
url "http://www.unixaaaa.com"

# 3  
Old 02-23-2014
Quote:
Originally Posted by Akshay Hegde
Just an example Try :

Code:
#!/bin/bash

url="https://www.unix.com"

if wget $url >/dev/null 2>&1 ; then
    echo "Url : $url exists..."
else
    echo "Url : $url doesn't exists.."
fi

url="http://www.unixaaaa.com"

if wget $url >/dev/null 2>&1 ; then
    echo "Url : $url exists..."
else
    echo "Url : $url doesn't exists.."
fi

---------- Post updated at 02:47 PM ---------- Previous update was at 02:40 PM ----------

You can create function something like this and call

Code:
#!/bin/bash



url(){
    if [ ! -z "$1" ]; then
        wget "$1" >/dev/null 2>&1 
        [ "$?" -eq 0 ] && echo "Url : $1 exists..." || echo "Url : $1 doesn't exists.."
    else
        echo "No Arguments..exiting" & exit
    fi
}


url "https://www.unix.com"
url "http://www.unixaaaa.com"

URL=https://mybank.net:8443/Services/com/Notification.jws

This only checks for the hostname / port number [https://mybank.net:8443]. What about the rest of the URL / page [/Services/com/Notification.jws] if it exists or not?

How can we check that?
# 4  
Old 02-23-2014
Did you try what I posted in message #2 ? it does your job, I guess
# 5  
Old 02-23-2014
I have a https url which does exist.

$? returns 5 with wget

Using your code it says "URL DOES NOT EXIST"

The URL is internal to our network so u cant access it but the server running the script can

Why is this the problem?
# 6  
Old 02-23-2014
repalce wget "$1" >/dev/null 2>&1with wget -q --no-check-certificate "$1" and try
Wget Error Codes:
Code:
    0 No problems occurred.
    1 Generic error code.
    2 Parse error—for instance, when parsing command-line options, the .wgetrc or .netrc…
    3 File I/O error.
    4 Network failure.
    5 SSL verification failure.
    6 Username/password authentication failure.
    7 Protocol errors.
    8 Server issued an error response.

# 7  
Old 02-23-2014
Thank you.
Last edited by mohtashims; 02-24-2014 at 05:28 AM..
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