Programming

Hi friends,Can iuse Bash commands in my C programs,like that

if((cd /root/Desktop/) == true)
do somethig.


I have to control a variable called path,i want to know,this path is in Unix Directories or not,Is there anybody help me?,

Thank you..

***email address removed by moderator -- reborg

1. most commands are also found in the C library
remove() = rm
chdir() = cd
... etc.
2. You can execute shell commands in C using two methods:
A. system()

Code:

system("rm -f somefile");

B. popen

Code:

#include <stdio.h>
..........
FILE *cmd=popen(" find . -type -f -print","r");
char tmp[256]={0x0};
while (fgets(tmp,sizeof(tmp),cmd)!=NULL)
{
    printf("%s\n", tmp);
}
pclose(cmd);

yes i try what you said,and it works,thank you jim mcnamara,

but i dont know,can we use our variables in system function like that?,


#include <stdio.h>

main()
{
char *path;
path = "/usr/bin/";

if(system("cd 'path'")==0) -------------------- ? my variable in
do;
else
go;
}


thank you very much again,

Code:

char cmd[80]={0x0};
char *path="/path/to/somewhere";
sprintf(cmd,"cd %s", path);
system(cmd);

Be aware: cd WILL NOT apply to the process running the C code because system creates a child process, so when it exits the cd command's effect is gone.
Use chdir() instead if you want the program to actually change working directories.