3: simple implementation of `execl()`

pravjot

3: simple implementation of `execl()`

Walk us through a simple implementation of `execl()` to replace the current process with the `ls -l` command. What would happen if `execl()` fails?

gaurav133232

int ret = execl("/bin/ls","ls","-l",(char*)0);

if(ret==-1)

{

perror("execl failed");

}

Here we have supplied /bin/ls as the path, ls as the first argument and "-l" as argument to ls which generates the listing in a long format. If execl fails, it returns -1, and we use an error handler where the return value is stored in a ret variable.

3: simple implementation of `execl()`

3: simple implementation of `execl()`

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