# History of commands 
export HISTFILESIZE=3000       # The bash history should save 3000 commands
export HISTCONTROL=ignoredups  # Don't put duplicate lines in the history.
alias hist='history | grep $1' # Requires one input string; displays all
                               # previous commands which match the string
# Some useful aliases
alias ls='ls -FG'       # list hidden files; add colors and file type extensions
alias ll="ls -la |less"   # display in list format using pager 'less'
alias lt="ls -lat |less"  # display in order of time last modified
alias lu="ls -laut |less" # display in order of time last accessed
alias rm="rm -i"         # default to confirm deletion of files
PS1='\h:\u \w % '