Question

#!/bin/sh
echo "one"
read host
echo "two"
read ip
echo "three"
read oid
read oid
echo $oid $host >> logger.txt

it never makes it to echoing “two”

No matter if I pass parameters (this is to receive SNMP traps, and the parameters come) manually in any varied way.

EDIT: This has permissions etc etc, I am testing it by launching it manually, “one” is echoed.

Answer 1

read waits for input from STDIN.

If you do not insert any input by hand (in a interactive terminal) or you do not provide any input from STDIN like this:

echo -e "my_host\n192.168.1.100\nfoo\nbar" | ./myscript

it will hang waiting for input

In the example \n is a newline.

If you want to access parameters, do not use read, but the $1…$n variable.

./myscript my_host 192.168.1.100 foo

You need this:

#!/bin/sh
host=$1
ip=$2
oid=$3
echo $oid $host >> logger.txt