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this simple program supposed to run the command ls
but the output is 1 and 2.can someone explain to me why ls not working ?
#include <stdio.h>
main()
{
int pid,stat;
if((pid=fork())==0)
{
execl("/bin/","ls",NULL);
printf("1");
exit(1);
}
else
{
wait(&stat);
printf("2");
}
}
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The first argument to execl should contain the full path to the executable you want to run:
execl("/bin/ls","ls",NULL);
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i understant that if i have parameters i shoud write
execl("/bin/date", "date", "-u", NULL);
how can i write the same thing with execv ?
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Also execl returns a value that can help you tell why it isn't working.
Such as '2' which seems to pretty much always mean that it couldn't find the file it needed to execute.
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