The road to mathematics-the basic technology of distributed Computing-linux/unix (2)

Let the process run in the background, return immediately after executing the command, continue to execute other commands, add "&" at the end of the command line

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

redirect

The following command finds the file and redirects the result list to a file

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]+ complete 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$

Redirect added to a file, using ">>"

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

This blog all content is original, if reproduced please indicate sourcehttp://blog.csdn.net/myhaspl/uses the pipe "|" To change the output of the 1th command to the input of the 2nd command.
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

The road to mathematics-the basic technology of distributed Computing-linux/unix (2)