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标准输出重定向

">" 操作符：覆盖目标文件内容linuxidc@linuxidc:~/linuxidc/linux/cmdline$ date > foolinuxidc@linuxidc:~/linuxidc/linux/cmdline$ cat fooFri May 8 09:55:42 CST 2015">>" 操作符：在目标文件尾部追加输出内容linuxidc@linuxidc:~/linuxidc/linux/cmdline$ date >> foolinuxidc@linuxidc:~/linuxidc/linux/cmdline$ cat fooFri May 8 09:55:42 CST 2015Fri May 8 09:57:02 CST 2015

标准错误重定向

"2>" 操作符：覆盖目标文件内容linuxidc@linuxidc:~/linuxidc/linux/cmdline$ ls inexistent_dir 2> ls-error.txt linuxidc@linuxidc:~/linuxidc/linux/cmdline$ cat ls-error.txt ls: cannot access inexistent_dir: No such file or directory"2>>" 操作符：在目标文件尾部追加输出内容linuxidc@linuxidc:~/linuxidc/linux/cmdline$ ls inexistent_dir 2>> ls-error.txt linuxidc@linuxidc:~/linuxidc/linux/cmdline$ cat ls-error.txt ls: cannot access inexistent_dir: No such file or directoryls: cannot access inexistent_dir: No such file or directory

将标准输出与标准错误重定向到同一文件

"&>" 操作符：覆盖目标文件内容linuxidc@linuxidc:~/linuxidc/linux/cmdline$ date &> foolinuxidc@linuxidc:~/linuxidc/linux/cmdline$ cat fooFri May 8 10:16:12 CST 2015linuxidc@linuxidc:~/linuxidc/linux/cmdline$ ls inexistent_dir &> foo linuxidc@linuxidc:~/linuxidc/linux/cmdline$ cat fools: cannot access inexistent_dir: No such file or directory"&>>" 操作符：在目标文件尾部追加输出内容linuxidc@linuxidc:~/linuxidc/linux/cmdline$ echo "hello world" > foolinuxidc@linuxidc:~/linuxidc/linux/cmdline$ date &>> foolinuxidc@linuxidc:~/linuxidc/linux/cmdline$ ls inexistent_dir &>> foo linuxidc@linuxidc:~/linuxidc/linux/cmdline$ cat foohello worldFri May 8 10:25:24 CST 2015ls: cannot access inexistent_dir: No such file or directory 

标准输入重定向

"<" 操作符linuxidc@linuxidc:~/linuxidc/linux/cmdline$ echo "hello world" > foolinuxidc@linuxidc:~/linuxidc/linux/cmdline$ cat < foohello world 

管道

"|" 操作符 linuxidc@linuxidc:~/linuxidc/linux/cmdline$ ls /usr/bin | grep "^zip"zipzipcloakzipgrepzipinfozipnotezipsplit本文永久更新链接地址