Yiguang

摘要： 原帖由tom0732于 2008-9-13 22:21 发表-bash-3.00$ ls /usr/nothing/nothing not found/usr:HTTPServerdoc java5 man sbin sysTT_DB dt lbin mozilla share sysvX11R6...-bash-3.00$ls /usr/nothing > /dev/null/nothing not found标准输出送到/dev/null丢弃,出错按默认输出到屏幕-bash-3.00$ls /usr/nothing > /dev/null 2>1标准输出送到/... 阅读全文