自动编译java的小脚本

编译本目录下得一个java文件的脚本

2. #!/bin/bash
3. #
4. 
   
5. function usage()
6. {
7. echo "parameter error "
8. echo "$0 file"
9. echo "file is the java source code you want to compile and run"
10. exit 1;
11. }
12. 
    
13. postfix=`echo "$1" | awk -F . '{print $2}'`
14. 
    
15. 
    
16. # if the parameter is not enough
17. # or not in the form of "*.java"
18. # then show the usage
19. if [ $# != 1 -o "$postfix" != "java" ]
20. then
21. usage
22. fi
23. 
    
24. cur_dir=`pwd`
25. file_name=$1
26. a=${file_name%.*}
27. javac $file_name -d $cur_dir
28. 
    
29. if [ "$?"=="0" ]
30. then
31. java $a
32. else
33. echo "compile failed!"
34. fi