shell programming problems (XIX)

topic:

Shell design a program established under / userdata directory 50 directory, namely user1 ~ user50, and set permissions for each directory, where the permissions for other users: Read; file owner permissions are: read, write, execute; permission for the file owner's group: read, execute.

 

answer:

#!/bin/bash

mkdir ./userdata

if [ $? -eq 0 ]; then
    i=1
    while [ $i -le 50 ]; do
        mkdir -p ./userdata/user$i
        chmod 754 ./userdata/user$i
        let i++
    done
else
    echo "end"
    exit 1
fi

exit 0