mkaccounts

#!/bin/bash
#RHCE page 370, lab exercise

#Variables
OPTION=$1
NEWUSERSFILE=/tmp/support/newusers

case $OPTION in
	'')
	    ;;
	-v) VERBOSE=y
	    ;;
	-h) echo "Usage: $0 [-h|-v]"
	    echo
	    exit
	    ;;
	 *) echo "Usage: $0 [-h|-v]"
	    echo
	    exit 1
	    ;;
esac

#Test for dups and conflicts
ACCTEXIST=''
ACCTEXISTNAME=''
if [ $? -eq 0 ]; then
	ACCTEXIST=y
	ACCTEXISTNAME="$(grep ^$ACCTNAME: /etc/passwd | cut -f5 -d:)"
fi
if [ "$ACCTEXIST" = 'y' ] && [ "$ACCTEXISTNAME" = "$FIRSTNAME $LASTNAME" ]; then
	echo "Skipping $ACCTNAME. Duplicate found."
elif ["$ACCTEXIST" = 'y' ]; then
	echo "Skipping $ACCTNAME. Conflict found."
else 	useradd $ACCTNAME -c "$FIRSTNAME $LASTNAME"
	if [ "$VERBOSE" = 'y' ]; then
	echo "Added $ACCTNAME."
	fi
fi
#Loop
for ENTRY in $(cat $NEWUSERSFILE); do
	#Extract first, last and tier fields
	FIRSTNAME=$(echo $ENTRY | cut -d: -f1)
	LASTNAME=$(echo $ENTRY | cut -d: -f2)
	TIER=$(echo $ENTRY | cut -d: -f4)
	#Make account name
	FIRSTINITIAL=$(echo $FIRSTNAME | cut -c 1 | tr 'A-Z' 'a-z')
	LOWERLASTNAME=$(echo $LASTNAME | tr 'A-Z' 'a-z')
	ACCTNAME=$$FIRSTINITIAL$LOWERLASTNAME
	#Create account
	useradd $ACCTNAME -c "$FIRSTNAME $LASTNAME"
done
TOTAL=$(cat $NEWUSERSFILE | wc -l)
TIER1COUNT=$(grep -c :1$ $NEWUSERSFILE)
TIER2COUNT=$(grep -c :2$ $NEWUSERSFILE)
TIER3COUNT=$(grep -c :3$ $NEWUSERSFILE)
TIER1PCT=$[ $TIER1COUNT * 100 / $TOTAL ]
TIER2PCT=$[ $TIER2COUNT * 100 / $TOTAL ]
TIER3PCT=$[ $TIER3COUNT * 100 / $TOTAL ]

#Print the report
echo "\"Tier 1\",\"$TIER1COUNT\",\"$TIER1PCT%\""
echo "\"Tier 2\",\"$TIER2COUNT\",\"$TIER2PCT%\""
echo "\"Tier 3\",\"$TIER3COUNT\",\"$TIER3PCT%\""