摘要：
转载自http://blog.csdn.net/whuslei/article/details/7187639一、IFS 介绍 Shell 脚本中有个变量叫 IFS(Internal Field Seprator)，内部域分隔符。完整定义是The shell uses the value stored in IFS, which is the space, tab, and newline characters by default, to delimit words for the read and set commands, when parsing output from co... 阅读全文
