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filippis |
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package tools; |
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import java.io.*; |
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/** |
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* Package: tools |
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* Class: PyMol |
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* Author: Real Gagnon (http://www.rgagnon.com/javadetails/java-0014.html) |
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* Copyright by Ioannis Filippis, filippis@molgen.mpg.de |
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* Date: 03/03/2006 |
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* |
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* SystemCmd's static exec method will spawn an external process to execute an external |
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* program or to launch a unix script or just execute a simple linux command. |
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* The output is captured and returned as string. |
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* |
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* Notes: |
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* - There are two versions of the exec method, one taking a String array and one just a String |
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* - If you want to launch a Unix script and especially use the < > | piping options, |
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* you must invoke the command processor |
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* String[] cmd = {"/bin/sh", "-c", "ls > hello"}; |
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* SystemCmd.exec(cmd); |
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* - If you need to pass arguments, it's safer to a String array especially if they contain spaces. |
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* String[] cmd = { "myProgram.exe", "-o=This is an option" }; |
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* SystemCmd.exec(cmd); |
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* |
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* Changelog: |
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* 14/03/06 Added exec method to take only a string as argument by JD |
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* 03/03/06 first created/copied by IF |
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*/ |
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public class SystemCmd { |
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public static String exec(String[] cmd) { |
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String output = ""; |
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try { |
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String line = ""; |
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Process p = Runtime.getRuntime().exec(cmd); |
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BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream())); |
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while ((line = input.readLine()) != null) { |
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output = output + line + "\n"; |
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} |
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input.close(); |
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} catch (Exception err) { |
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err.printStackTrace(); |
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} |
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return output; |
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} |
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public static String exec(String cmd) { |
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String output = ""; |
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try { |
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String line = ""; |
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Process p = Runtime.getRuntime().exec(cmd); |
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BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream())); |
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while ((line = input.readLine()) != null) { |
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output = output + line + "\n"; |
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} |
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input.close(); |
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} catch (Exception err) { |
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err.printStackTrace(); |
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} |
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return output; |
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} |
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} |
