标签:定向 stand line file gre pen pes append lin
A little understanding of how *nix pipes work would help.
In short the ‘>>‘ pipe operator will append lines to the end of the specified file,
where-as the single greater than ‘>‘ will empty and overwrite the file.
标签:定向 stand line file gre pen pes append lin
原文地址:http://www.cnblogs.com/chucklu/p/6432159.html