I need to get user and password from a file and use that in my script
My file looks like below(netrc is my file name)
machine ftp.test.net login test_user password test_pass
machine ftp1.test.net login test_user1 password test_pass1
I want to write a function to access the file and fetch the username and password for particular machine
get_netrc_user () {
awk -v machine="$1" '$2 == machine { print $4 }' netrc
}
get_netrc_user () {
awk -v machine="$1" '$2 == machine { print $6 }' netrc
}
The first function fetches the username/login given a particular machine, and the second one fetches the password.
To use:
username=$( get_netrc_user 'ftp.test.net' )
password=$( get_netrc_pass 'ftp.test.net' )
The get_netrc_pass assumes that the password never contains any whitespace though. If it does, we can change it to be a bit more safe:
get_netrc_user () {
awk -v machine="$1" '$2 == machine { sub(".*password ", "", $0); print }' netrc
}
Now, instead of returning the 6th whitespace-delimited field from the file, we delete everything up to the string password (with a space at the end) and return what remains of the line. This would still fail if the password contains that string obviously.
I would do this:
login=$(grep $mymachin "$myfile" | cut -d' ' -f3)
password=$(grep $mymachin "$myfile" | cut -d' ' -f5)
or even better
# reading the file only once
login_password=$(grep $mymachin "$myfile" | cut -d' ' -f3,5)
login=$(cut -d' ' -f1 <<<$login_password)
password=$(cut -d' ' -f2 <<<$login_password)
An alternative method now I have properly read the example, using the keywords instead of the position:
line=$(grep $mymachin "$myfile")
login=$(sed 's/.*login \(.*\) .*/\1/' <<<$line)
password=$(sed 's/.*password \(.*\) .*/\1/' <<<$line)
I would use cat to output the file, grep to select tha machine and awk to filter the fields (in your case the password and so).
So something like this
login=$(cat $myfile | grep $mymachine | awk '{print $4}')
Done with below commands for fetching username and password
username=`awk '/Machinename/{print $4}' filename`
pass=`awk '/Machinename/{print $6}' filename`
