man pages section 2: System Calls
    
E
 
 effective group ID, set — setregid ( Index Term Link )
 
 effective user IDs, set — setreuid ( Index Term Link )
 
 exec — execute a file ( Index Term Link )
 
 execl — execute a file ( Index Term Link )
 
 execle — execute a file ( Index Term Link )
 
 execlp — execute a file ( Index Term Link )
 
 execv — execute a file ( Index Term Link )
 
 execve — execute a file ( Index Term Link )
 
 execvp — execute a file ( Index Term Link )