Question

I am writing a shell script to run bunch of queries in postgres.

This is the script that I have written.

#!/bin/sh
host="172.16.7.102"
username="priyank"
dbname="truaxis"
x=1
echo "Connection done"
while [ $x -le 3 ]
do
        x=$(($x + 1 ))
        echo "Connection $x"
        psql -h $host $dbname $username << EOF
        select * from students where sid = $x;
        EOF
done

There are two issues with this script.

1. pgtest1.sh: 17: Syntax error: end of file unexpected (expecting “done”)

2. how do I pass $x in the sql dynamically

I want to create new db connection per iteration.

I am new to both postgre and shell.

Thanks

Priyank

Answer 1

1) pgtest1.sh: 17: Syntax error: end of file unexpected (expecting “done”)

You need to have EOF in its own line alone (without space etc)

     psql -h $host $dbname $username << EOF
        select * from students where sid = $x;
EOF

2) how do I pass $x in the sql dynamically

$ sh scriptname.sh value_of_x

then in your script

x=$1