下面的例子，将忽略 pwd、ls、ls -ltr 等命令：[code]# export HISTIGNORE=”pwd:ls:ls -ltr:”
pwd
ls
ls -ltr
service httpd stop
history | tail -3
79 export HISTIGNORE=”pwd:ls:ls -ltr:”
80 service httpd stop
81 history
[Note that history did not record pwd, ls and ls -ltr][/code]