% md5 jinstall-ex-4200-10.4R1.9-domestic-signed.tgz < After reaching the Source folder where the Junos Software been pushed enter this command
root@4200:RE:0% cd /var/tmp
root@4200:RE:0% ls
.snap krt_gencfg_filter.txt
gres-tp snmptest.pcap
jinstall-ex-4200-10.4R1.9-domestic-signed.tgz
root@Harish-4200:RE:0% md5 jinstall-ex-4200-10.4R1.9-domestic-signed.tgz
MD5 (jinstall-ex-4200-10.4R1.9-domestic-signed.tgz) =38032c0e237a65b4cbc86a9c6ab06552