标签：tde 标准输入 pre not cannot 输入 文件 dir can
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[keysystem@localhost redirect]$ echo hello>file1 [keysystem@localhost redirect]$ echo world>file2 [keysystem@localhost redirect]$ cat file1 hello [keysystem@localhost redirect]$ cat file2 world [keysystem@localhost redirect]$ cat file1 >file [keysystem@localhost redirect]$ cat file hello [keysystem@localhost redirect]$ cat file2 >file [keysystem@localhost redirect]$ cat file world [keysystem@localhost redirect]$ cat file file file1 file2 [keysystem@localhost redirect]$ cat file1 >>file [keysystem@localhost redirect]$ cat file world hello [keysystem@localhost redirect]$ cat file1 file2 >file [keysystem@localhost redirect]$ cat file hello world [keysystem@localhost redirect]$
[keysystem@localhost redirect]$ ls shit ls: cannot access shit: No such file or directory [keysystem@localhost redirect]$ [keysystem@localhost redirect]$ ls shit >out.put ls: cannot access shit: No such file or directory [keysystem@localhost redirect]$ [keysystem@localhost redirect]$ cat out.put [keysystem@localhost redirect]$ ls shit 2>out.put [keysystem@localhost redirect]$ [keysystem@localhost redirect]$ cat out.put ls: cannot access shit: No such file or directory [keysystem@localhost redirect]$
[keysystem@localhost redirect]$ cat file hello world [keysystem@localhost redirect]$ [keysystem@localhost redirect]$ grep world <file world [keysystem@localhost redirect]$
[keysystem@localhost redirect]$ cat files.txt d.txt a.txt f.html b.txt b.txt [keysystem@localhost redirect]$ cat files.txt |uniq d.txt a.txt f.html b.txt [keysystem@localhost redirect]$ cat files.txt |uniq|grep txt d.txt a.txt b.txt [keysystem@localhost redirect]$ cat files.txt |uniq|grep txt|sort a.txt b.txt d.txt [keysystem@localhost redirect]$
标签：tde 标准输入 pre not cannot 输入 文件 dir can
原文地址：http://www.cnblogs.com/alsodzy/p/7967546.html
