让进程在后台运行,执行命令后立即返回,可以继续执行其它命令,在命令行最后加上“&”
bash-4.2$ find ~ -name doc &
[1] 5453
bash-4.2$ /home/myhaspl/hadoop-2.4.1/share/doc
/home/myhaspl/pypy-2.3.1-src/site-packages/numpy/doc
/home/myhaspl/pypy-2.3.1-src/ctypes_configure/doc
/home/myhaspl/pypy-2.3.1-src/pypy/doc
/home/myhaspl/numpy/doc
/home/myhaspl/numpy/build/lib.linux-x86_64-2.7/numpy/doc
/home/myhaspl/numpy/numpy/doc
/home/myhaspl/numpy/numpy/numpy/doc
/home/myhaspl/numpy/numpy/numpy/f2py/doc
重定向
下面命令查找文件,并将结果列表重定向到一个文件中
bash-4.2$ find ~ -name doc >mydoclist &
[1] 5461
bash-4.2$ ls
hadoop-2.4.1 hadoop-2.4.1.tar.gz numpy
hadoop-2.4.1-src.tar.gz mydoclist pypy-2.3.1-src
[1]+ 完成 find ~ -name doc > mydoclist
bash-4.2$ cat mydoclist
/home/myhaspl/hadoop-2.4.1/share/doc
/home/myhaspl/pypy-2.3.1-src/site-packages/numpy/doc
/home/myhaspl/pypy-2.3.1-src/ctypes_configure/doc
/home/myhaspl/pypy-2.3.1-src/pypy/doc
/home/myhaspl/numpy/doc
/home/myhaspl/numpy/build/lib.linux-x86_64-2.7/numpy/doc
/home/myhaspl/numpy/numpy/doc
/home/myhaspl/numpy/numpy/numpy/doc
/home/myhaspl/numpy/numpy/numpy/f2py/doc
/home/myhaspl/numpy/numpy/build/lib.linux-x86_64-2.7/numpy/doc
bash-4.2$
重定向增加到一个文件中,使用">>"
bash-4.2$ find ~ -name hadoop >>mydoclist &
[1] 5466
bash-4.2$ cat mydoclist
/home/myhaspl/hadoop-2.4.1/share/doc
/home/myhaspl/pypy-2.3.1-src/site-packages/numpy/doc
/home/myhaspl/pypy-2.3.1-src/ctypes_configure/doc
/home/myhaspl/pypy-2.3.1-src/pypy/doc
/home/myhaspl/numpy/doc
/home/myhaspl/numpy/build/lib.linux-x86_64-2.7/numpy/doc
/home/myhaspl/numpy/numpy/doc
/home/myhaspl/numpy/numpy/numpy/doc
/home/myhaspl/numpy/numpy/numpy/f2py/doc
/home/myhaspl/numpy/numpy/build/lib.linux-x86_64-2.7/numpy/doc
/home/myhaspl/hadoop-2.4.1/bin/hadoop
/home/myhaspl/hadoop-2.4.1/etc/hadoop
/home/myhaspl/hadoop-2.4.1/share/hadoop
/home/myhaspl/hadoop-2.4.1/share/hadoop/httpfs/tomcat/webapps/webhdfs/WEB-INF/classes/org/apache/hadoop
/home/myhaspl/hadoop-2.4.1/share/hadoop/httpfs/tomcat/webapps/webhdfs/WEB-INF/classes/org/apache/hadoop/lib/service/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop/api/src-html/org/apache/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop/api/org/apache/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop/api/org/apache/hadoop/lib/service/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop/hadoop-hdfs-httpfs/apidocs/src-html/org/apache/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop/hadoop-hdfs-httpfs/apidocs/src-html/org/apache/hadoop/lib/service/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop/hadoop-hdfs-httpfs/apidocs/org/apache/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop/hadoop-hdfs-httpfs/apidocs/org/apache/hadoop/lib/service/hadoop
本博客所有内容是原创,如果转载请注明来源
http://blog.csdn.net/myhaspl/
使用管道“|",将第1个命令的输出变为第2个命令的输入。
bash-4.2$ find ~ -name hadoop|grep hdfs
/home/myhaspl/hadoop-2.4.1/share/hadoop/httpfs/tomcat/webapps/webhdfs/WEB-INF/classes/org/apache/hadoop
/home/myhaspl/hadoop-2.4.1/share/hadoop/httpfs/tomcat/webapps/webhdfs/WEB-INF/classes/org/apache/hadoop/lib/service/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop/hadoop-hdfs-httpfs/apidocs/src-html/org/apache/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop/hadoop-hdfs-httpfs/apidocs/src-html/org/apache/hadoop/lib/service/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop/hadoop-hdfs-httpfs/apidocs/org/apache/hadoop
/home/myhaspl/hadoop-2.4.1/share/doc/hadoop/hadoop-hdfs-httpfs/apidocs/org/apache/hadoop/lib/service/hadoop