MacOSX::TBytes.sh
#!/bin/bash #Sum the number of bytes in a directory listing TBytes=0 for Bytes in $(ls -l | grep "^-" | awk '{ print $5 }') do let TBytes=$TBytes+$Bytes done TotalMeg=$(echo -e "scale=3 \n$TBytes/1048576 \nquit" | bc) echo -n "$TotalMeg"
http://sos.blog-city.com/mac_os_x__bash_customize_your_terminal_prompt_a_little_color.htm