Shell Script Help - Shell Programming and Scripting

mshafi · #1 (**permalink**) 10-28-2005

Hi All,
I have a input file:

hostnames.txt
ssh,server1,user
ssh,server2,user
ssh,server3,user
ssh,server4,user

So can someone guide me as how to read this file and display the output as follow using a ksh.

server1 server2 server3 server4

Thanks,

blowtorch · #2 (**permalink**) 10-28-2005

It is quite easy if you fiddle with the IFS.

Code:

#!/bin/ksh
oldIFS=IFS
IFS=$IFS","
while read junk1 server junk2; do
echo "$server \c"
done < hostname.txt
IFS=$oldIFS

reborg · #3 (**permalink**) 10-29-2005

or even easier in awk.

Code:

awk -F\, '{printf "%s ", $2}' hostname.txt

vgersh99 · #4 (**permalink**) 10-29-2005

Code:

#!/bin/ksh
while IFS=',' read junk1 server junk2; do
    echo "$server \c"
done < hostname.txt

mshafi · #5 (**permalink**) 10-31-2005

Thanks to vgersh99, reborg, blowtorch that is exactly what I was trying to do. Now to continue with this..what I am trying to do is create an html link for each servername which will look like this in a txt file:

<a href="#server1">server1</a> <a href="#server2">server2</a> <a href="#server3">server3</a>

and so on:

I tried the following however it doesn't seem to be working. The output comes out to be one link instead of individual links. Can you guys provided some assistance with this. Thank you. Here is what I tried doing:
hostFile = hostnames.txt
hostlinks = `awk -F\, '{printf "%s ", $2}' $hostFile`
printf "<a href=#$hostlinks>$hostlinks</a>"

Obviously with this hostlinks output becomes one big link.

vgersh99 · #6 (**permalink**) 10-31-2005

Code:

hostFile = hostnames.txt
nawk -F, '{printf("<a href=#$hostlinks>%s</a>\n", $2)}' $hostFile

mshafi · #7 (**permalink**) 10-31-2005

Hey versh99 thanks for the response. With this code from you I am almost there:

hostFile = hostnames.txt
nawk -F, '{printf("<a href=#$hostlinks>%s</a>\n", $2)}' $hostFile

however the above code is giving this link:

http://singhb.hiw.com/hostusers/hostuserhtml.html#$hostlinks

Can the $hostlinks variable be replace where it will show the actual server name.

I tried replacing the $hostlinks with $2 however that only chnaged the html to:

http://singhb.hiw.com/hostusers/hostuserhtml.html#$2

Thanks for your assistance with this.

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