$ cp /proc/net/route /tmp/route
$ diff /proc/net/route /tmp/route
$ md5sum /tmp/route /proc/net/route
4b3663ec7554cf91764106ea9dcc2ada /tmp/route
4b3663ec7554cf91764106ea9dcc2ada /proc/net/route
$ sh -c 'while read line; do echo line: $line; done' < /tmp/route
line: Iface Destination Gateway Flags RefCnt Use Metric Mask MTU Window IRTT
line: eth0 00000000 01A8F50A 0003 0 0 0 00000000 0 0 0
line: eth0 00A8F50A 00000000 0001 0 0 0 00F8FFFF 0 0 0
line: virbr0 007AA8C0 00000000 0001 0 0 0 00FFFFFF 0 0 0
$ sh -c 'while read line; do echo line: $line; done' < /proc/net/route
line: Iface Destination Gateway Flags RefCnt Use Metric Mask MTU Window IRTT
line: eth0 00A8F50A 00000000 0001 0 0 0 00F8FFFF 0 0 0
line: virbr0 007AA8C0 00000000 0001 0 0 0 00FFFFFF 0 0 0
$ md5sum /proc/net/route /tmp/route
4b3663ec7554cf91764106ea9dcc2ada /proc/net/route
4b3663ec7554cf91764106ea9dcc2ada /tmp/route
$ cat /proc/net/route
Iface Destination Gateway Flags RefCnt Use Metric Mask MTU Window IRTT
eth0 00000000 01A8F50A 0003 0 0 0 00000000 00 0
eth0 00A8F50A 00000000 0001 0 0 0 00F8FFFF 00 0
virbr0 007AA8C0 00000000 0001 0 0 0 00FFFFFF 00 0