在这个示例中,我们定义了一个 long_options 结构体数组,它包含了所有支持的长选项和对应的短选项。getopt_long 函数会根据这个数组解析命令行参数。你可以这样编译和运行这个程序:gcc -o getopt_long_example getopt_long_example.c ./getopt_long_example --create newfile --file input.txt -v ...
::在optstring参数开头第一个字符为:时,遇到参数缺失返回:。参考下方代码(摘自Linux Programming by Example)可帮助理解 intoc;/* option character */char*b_opt_arg;while((oc = getopt(argc, argv,":ab:")) !=-1) {switch(oc) {case'a':/* handle -a, set a flag, whatever */break;case'b'...
::在optstring参数开头第一个字符为:时,遇到参数缺失返回:。参考下方代码(摘自Linux Programming by Example)可帮助理解 intoc;/* option character */char*b_opt_arg;while((oc=getopt(argc,argv,":ab:"))!=-1){switch(oc){case'a':/* handle -a, set a flag, whatever */break;case'b':/* hand...
C: getopt_long example: Accessing command line arguments Posted onJune 22, 2012 A command can haveboth long and short options.getoptis useful only for short options, that are nothing but options of one char (character) long. To support both short and long options like ...
Example 1 Example using getopt(). #include <unistd.h> #include <getopt.h> /* Flag set by `--verbose'. */ static int verbose_flag; int main (int argc, char **argv) { int c; while (1) { static struct option long_options[] = { /* These options set a flag. */ {"verbose...
See the Example section below for more details. Installation Quick and easy Download the standalone script called yaggo from the release and copy it into a directory in your PATH (e.g. ~/bin) From the source tree, the same is achieved with: make install prefix=$HOME/bin As a gem ...
(i.e., in the same word as the option name itself, for example, "-oarg"), then it is returned inoptarg, otherwiseoptargis set to zero. This is a GNU extension. IfoptstringcontainsWfollowed by a semicolon, then-W foois treated as the long option--foo. (The-Woption is reserved ...
example: xttdriver.pl -p xttdriver.pl -i xttdriver.pl -r xttdriver.pl -s $ 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31.
环境:AIX 6.1 + Oracle 10.2.0.4 现象:在做xtts测试时,源环境使用Oracle自带的perl执行xttdriver.pl报错如下: