1打开home，显示隐藏文件，CTR+H
2修改目录
#set gamitpath
gamitpath=/opt/gamit10.7
export PATH=$PATH:${gamitpath}/com/:${gamitpath}/gamit/bin:${gamitpath}/kf/bin
HELP_DIR=${gamitpath}/help
export HELP_DIR
#set GMT path
gmtpath=/usr/lib/gmt
PATH=$PATH:${gmtpath}/bin
