数学之路-分布式计算-linux/unix技术基础(2)
2014-09-16 10:42
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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
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
tee命令与管道同时使用,可以在输出同时,再输出一份给管道-bash-4.2$ ls |tee mylist
hadoop-2.4.1
hadoop-2.4.1-src.tar.gz
hadoop-2.4.1.tar.gz
mydoclist
numpy
pypy-2.3.1-src
-bash-4.2$ cat mylist
hadoop-2.4.1
hadoop-2.4.1-src.tar.gz
hadoop-2.4.1.tar.gz
mydoclist
numpy
pypy-2.3.1-src
-bash-4.2$
通配符(~表示当前用户的主目录)
*为多个字符,?为单个字符,
-bash-4.2$ ls ~/numpy/*.py
/home/myhaspl/numpy/pavement.py /home/myhaspl/numpy/setupegg.py
/home/myhaspl/numpy/runtests.py /home/myhaspl/numpy/setup.py
-bash-4.2$ ls ~/numpy/*.txt
/home/myhaspl/numpy/BENTO_BUILD.txt /home/myhaspl/numpy/LICENSE.txt
/home/myhaspl/numpy/DEV_README.txt /home/myhaspl/numpy/README.txt
/home/myhaspl/numpy/INSTALL.txt /home/myhaspl/numpy/THANKS.txt
-bash-4.2$ ls ~/numpy/setup*.py
/home/myhaspl/numpy/setupegg.py /home/myhaspl/numpy/setup.py
-bash-4.2$ ls ~/numpy/setup.??
/home/myhaspl/numpy/setup.py
-bash-4.2$
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
tee命令与管道同时使用,可以在输出同时,再输出一份给管道-bash-4.2$ ls |tee mylist
hadoop-2.4.1
hadoop-2.4.1-src.tar.gz
hadoop-2.4.1.tar.gz
mydoclist
numpy
pypy-2.3.1-src
-bash-4.2$ cat mylist
hadoop-2.4.1
hadoop-2.4.1-src.tar.gz
hadoop-2.4.1.tar.gz
mydoclist
numpy
pypy-2.3.1-src
-bash-4.2$
通配符(~表示当前用户的主目录)
*为多个字符,?为单个字符,
-bash-4.2$ ls ~/numpy/*.py
/home/myhaspl/numpy/pavement.py /home/myhaspl/numpy/setupegg.py
/home/myhaspl/numpy/runtests.py /home/myhaspl/numpy/setup.py
-bash-4.2$ ls ~/numpy/*.txt
/home/myhaspl/numpy/BENTO_BUILD.txt /home/myhaspl/numpy/LICENSE.txt
/home/myhaspl/numpy/DEV_README.txt /home/myhaspl/numpy/README.txt
/home/myhaspl/numpy/INSTALL.txt /home/myhaspl/numpy/THANKS.txt
-bash-4.2$ ls ~/numpy/setup*.py
/home/myhaspl/numpy/setupegg.py /home/myhaspl/numpy/setup.py
-bash-4.2$ ls ~/numpy/setup.??
/home/myhaspl/numpy/setup.py
-bash-4.2$
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