unix bash commands

PS1='\h:\w>'


alias cmd="cat $homedir/.bashrc"
alias log2="tail -100f $file"
alias cdir="cd $dir"
alias u="cd /bea/wl815/user_projects/domains/$domain/admin/upload"
alias cls="clear"
alias c="clear"
alias dir="ls"
alias lsr="ls -ltr"
alias lsm="ls -ltR more"
alias lsa="ls -a "
alias chm="chmod -R 777 * "
alias log="cd log4j && pwd"

displays machine info by ip/name
nslookup

CLASSPATH=jkjkl; export;
echo $CLASSPATH