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Full Discussion: Bash question: working with an array of previously set variable strings
Top Forums Shell Programming and Scripting Bash question: working with an array of previously set variable strings Post 302927329 by ongoto on Tuesday 2nd of December 2014 09:19:01 AM
Old 12-02-2014
It looks like you have to bind stderror with stdout to get the output into a variable.
2>&1

# URL port Variables
Code:
port2195=`nc -z $url2195 2195 2>&1`
port2196=`nc -z $url2196 2196 2>&1`
port5223=`nc -z $url5223 5223 2>&1`
port443=`nc -z $url443 443 2>&1`
port25=`nc -z localhost 25 2>&1`

Use $var so they will get expanded by bash.
Code:
# Set array
range=( $port2195 $port2196 $port5223 $port443 $port25 )

If you want an array for record keeping or logging or whatever, building the array in a loop might be better...

Code:
url[2195]=localhost
url[2196]=localhost
url[5223]=localhost
url[443]=localhost
url[25]=localhost


port[2195]=""
port[2196]=""
port[5223]=""
port[443]=""
port[25]=""

echo
echo "Now checking the ports..."
echo

# fill port array in a loop
for i in ${!url[*]}  # !url returns the index of the array, not the value.
do
    port[$i]=$(nc -zv ${url[$i]} $i 2>&1)
    if [[ ${port[$i]} =~ *succeeded* ]]; then
        echo "SUCCESS: port $i is open/working."
    else
        echo "FAILURE: port $i is NOT open/working."
    fi
done

Last edited by Scrutinizer; 12-02-2014 at 02:54 PM.. Reason: Doh! the arrow goes > that away; mod: extra code tags
 

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Ns_Url(3aolserver)					   AOLserver Library Procedures 					Ns_Url(3aolserver)

__________________________________________________________________________________________________________________________________________________

NAME

       Ns_AbsoluteUrl, Ns_ParseUrl, Ns_RelativeUrl, Ns_SkipUrl - URL manipulation routines

SYNOPSIS

       #include "ns.h"

       int
       Ns_AbsoluteUrl(Ns_DString *pds, char *url, char *baseurl)

       int
       Ns_ParseUrl(char *url, char **pprotocol, char **phost,
		   char **pport, char **ppath, char **ptail)

       char *
       Ns_RelativeUrl(char *url, char *location)

       char *
       Ns_SkipUrl(Ns_Request *request, int n)
_________________________________________________________________

DESCRIPTION

       Ns_AbsoluteUrl(pds, url, baseurl)

	      Construct an URL based on baseurl but with as many parts of the incomplete url as possible. Return NS_OK or NS_ERROR.

       Ns_ParseUrl(url, pprotocol, phost, pport, ppath, ptail)

	      Parse a URL into its component parts. Pointers to the protocol, host, port, path, and "tail" (last path element) will be set by ref-
	      erence in the passed-in pointers. The passed-in url will be modified.

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	      Return a pointer n elements into the request's url.

SEE ALSO

       nsd(1), info(n)

KEYWORDS

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