Shell调试技术.pdf

Shell 调试技术总结
2011-10-14 21:42
3 {
18.
19. 4 echo "This is an error function"
20.
21. 5 var=2011
22.
23. 6 return 1
24.
25. 7 }
26.
27. 8 trap 'echo "Line is $LINENO ,var=$var "' ERR
28.
29. 9 fun
30.
31. 10 ipconfig
32.
33. [******@localhost shell]# sh trap2
34.
35. This is an error function
36.
37. Line is 6 ,var=2011
38.
39. trap2: line 10: ipconfig: command not found
40.
41. Line is 10 ,var=2011

执行该脚本后先执行函数 fun，该函数返回