ps when ps isn't available on linux

#usage: lsprocs [username]
lsprocs(){
uid=`id -u`
if [ -z ${1+x} ];
then
        uid=`id -u`
else
        uid=`id -u $1`
        echo "uid for $1 is $uid"
fi
for f in `ls -d /proc/+([0-9])`; 
do 
        uidline=`cat $f/status | grep Uid`; 
        if [[ $uidline == *"$uid"* ]]; 
        then 
                echo "============="; 
                cat $f/status | grep Name; 
                cat $f/status | grep Uid; 
                cat $f/status | grep Pid; 
                echo "cmdline:"
                cat $f/cmdline; echo ""; 
        fi; 
done
}