moreutils の ts コマンドが便利だったので紹介．
通常のpingはこんな感じ
$ ping ::1 PING ::1(::1) 56 data bytes 64 bytes from ::1: icmp_seq=1 ttl=64 time=0.052 ms 64 bytes from ::1: icmp_seq=2 ttl=64 time=0.051 ms 64 bytes from ::1: icmp_seq=3 ttl=64 time=0.040 ms 64 bytes from ::1: icmp_seq=4 ttl=64 time=0.049 ms ^C --- ::1 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3067ms rtt min/avg/max/mdev = 0.040/0.048/0.052/0.004 ms
http(s) の疎通確認の出来る httping には --timestamp/--ts オプションがありタイムスタンプが付けられて便利です．
--timestamp or --ts
Put a timestamp before the result-lines. Use -v to also show a date.
$ httping 192.168.1.1 PING 192.168.1.1:80 (/): connected to 192.168.1.1:80 (234 bytes), seq=0 time= 12.53 ms connected to 192.168.1.1:80 (234 bytes), seq=1 time= 13.34 ms connected to 192.168.1.1:80 (234 bytes), seq=2 time= 13.16 ms ^CGot signal 2 --- http://192.168.1.1/ ping statistics --- 3 connects, 3 ok, 0.00% failed, time 2578ms round-trip min/avg/max = 12.5/13.0/13.3 ms $ httping --timestamp 192.168.1.1 PING 192.168.1.1:80 (/): 22:05:30.798 connected to 192.168.1.1:80 (172 bytes), seq=0 time= 14.99 ms 22:05:31.813 connected to 192.168.1.1:80 (172 bytes), seq=1 time= 14.45 ms 22:05:32.827 connected to 192.168.1.1:80 (172 bytes), seq=2 time= 13.28 ms ^CGot signal 2 --- http://192.168.1.1/ ping statistics --- 3 connects, 3 ok, 0.00% failed, time 2658ms round-trip min/avg/max = 13.3/14.2/15.0 ms
ping コマンドのman にはそれらしいものは見当たらなかったので，こんな感じで date コマンドの結果を繋いだりしていました．
$ ping ::1 | sed -s "s/^/`date +%F\ %T`\t/" 2023-02-05 21:58:50 PING ::1(::1) 56 data bytes 2023-02-05 21:58:50 64 bytes from ::1: icmp_seq=1 ttl=64 time=0.068 ms 2023-02-05 21:58:50 64 bytes from ::1: icmp_seq=2 ttl=64 time=0.066 ms 2023-02-05 21:58:50 64 bytes from ::1: icmp_seq=3 ttl=64 time=0.042 ms ^C
同じようなことをしてくれる moreutils 内の ts コマンドがありました．
ts: timestamp standard input
$ ping ::1 | ts Feb 05 22:01:20 PING ::1(::1) 56 data bytes Feb 05 22:01:20 64 bytes from ::1: icmp_seq=1 ttl=64 time=0.121 ms Feb 05 22:01:21 64 bytes from ::1: icmp_seq=2 ttl=64 time=0.118 ms Feb 05 22:01:22 64 bytes from ::1: icmp_seq=3 ttl=64 time=0.115 ms ^C
フォーマット( strftime(3) )を指定して自分好みにも．
$ ping ::1 | ts -m "%F %T" 2023-02-05 22:02:16 PING ::1(::1) 56 data bytes 2023-02-05 22:02:16 64 bytes from ::1: icmp_seq=1 ttl=64 time=0.038 ms 2023-02-05 22:02:17 64 bytes from ::1: icmp_seq=2 ttl=64 time=0.044 ms 2023-02-05 22:02:18 64 bytes from ::1: icmp_seq=3 ttl=64 time=0.066 ms ^C
sed などで書くより良さそうです．(moreutilsの導入が必要だけど)
環境
$ dpkg-query -W iputils-ping moreutils httping httping 2.5-5.2+b1 iputils-ping 3:20221126-1 moreutils 0.67-1 $ lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux bookworm/sid Release: n/a Codename: bookworm $ arch x86_64