Labels:text | screenshot | diagram | rectangle | line | font | number | parallel OCR: Figure 3 Using dup( ) to connect to a device After close of STDIN (FD 0) ~ and STDOUT (FD1) and DUPO After exec of As program starts to modem device shell script Your TTY Your TTY STDERR STDOUT STDIN STDERR STDERR Dialer program Dialer program Your shell script STDOUT STOIN STDOUT STDIN INPUT / OUTPUT INPUT OUTPUT Moden device Modem device
