Passing C Variable To Unix

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# 1  
Old 10-28-2001
Passing C Variable To Unix

I want to pass a variable set in my c program to a shell script (which will also be invoked or initiated from the same C program using the C's system command). Is it possible ?

# 2  
Old 10-28-2001
Use putenv() to put the variable in the environment before you call system(). Then the shell can pick it up out of the environment.
# 3  
Old 10-29-2001
You can simply use system() like...

char myarg[] = "Whatever"; // variable set here

sprintf(mycmd, "%s %s", "myshell", myarg);


# 4  
Old 11-07-2001
You can use system(3) like this, eg.
system("LC_ALL=zh_CN date");
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