TwitterのTLで知ったコマンドオプション yesとnetstat
yesコマンドにはオプションがある
[oc@centos5 ~]$ man yes yes(1) yes(1) 名前 yes - kill されるまで文字列を繰り返して出力する 書式 yes [string...] yes [--help] [--version] 説明 yes はコマンドライン引数をスペースで区切って末尾に改行 (newline) を付加 し、 kill されるまで繰り返して表示する。引数が一つも与えられな い と 、 yes は ‘y’ に改行を付加したものを kill されるまで表示しつづける。 オプション GNU yes が引数一つだけで起動された場合には、以下のオプションが認識され る: --help 標準出力に使用方法のメッセージを出力して正常終了する。 --version 標準出力にバージョン情報を出力して正常終了する。 注意 プログラムのバグについては bug-sh-utils@gnu.org に報告してください。 ペ ージの更新は Ragnar Hojland Espinosa <ragnar@ragnar-hojland.com> が行っ ています。 GNU Shell Utilities 2.1 18 June 2002 yes(1)
netstat --ip でUnixドメインを
netstat -aon (--ipなし)
[oc@centos5 ~]$ netstat -aon Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State Timer tcp 0 0 0.0.0.0:645 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:5432 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:445 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 192.168.170.21:445 192.168.170.1:1064 ESTABLISHED keepalive (3306.58/0/0) tcp 0 0 :::80 :::* LISTEN off (0.00/0/0) tcp 0 0 :::22 :::* LISTEN off (0.00/0/0) tcp 0 0 :::5432 :::* LISTEN off (0.00/0/0) tcp 0 0 :::25 :::* LISTEN off (0.00/0/0) tcp 0 520 ::ffff:192.168.170.21:22 ::ffff:192.168.170.1:1692 ESTABLISHED on (0.24/0/0) udp 0 0 127.0.0.1:32768 127.0.0.1:32768 ESTABLISHED off (0.00/0/0) udp 0 0 0.0.0.0:32769 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:642 0.0.0.0:* off (0.00/0/0) udp 0 0 192.168.170.21:137 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:137 0.0.0.0:* off (0.00/0/0) udp 0 0 192.168.170.21:138 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:138 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:5353 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:111 0.0.0.0:* off (0.00/0/0) udp 0 0 192.168.170.21:123 0.0.0.0:* off (0.00/0/0) udp 0 0 127.0.0.1:123 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:123 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:639 0.0.0.0:* off (0.00/0/0) udp 0 0 :::32771 :::* off (0.00/0/0) udp 0 0 :::5353 :::* off (0.00/0/0) udp 0 0 fe80::20c:29ff:fec9:123 :::* off (0.00/0/0) udp 0 0 ::1:123 :::* off (0.00/0/0) udp 0 0 :::123 :::* off (0.00/0/0) Active UNIX domain sockets (servers and established) Proto RefCnt Flags Type State I-Node Path unix 2 [ ACC ] STREAM LISTENING 5827 /tmp/.font-unix/fs7100 unix 2 [ ACC ] STREAM LISTENING 7351 @/tmp/fam-root- unix 2 [ ACC ] STREAM LISTENING 7152 /tmp/.X11-unix/X0 unix 2 [ ACC ] STREAM LISTENING 5481 /tmp/.s.PGSQL.5432 unix 2 [ ACC ] STREAM LISTENING 5671 /dev/gpmctl unix 2 [ ACC ] STREAM LISTENING 7125 /tmp/.gdm_socket unix 2 [ ACC ] STREAM LISTENING 6119 @/var/run/hald/dbus-Y6WUEzGrgw unix 2 [ ACC ] STREAM LISTENING 6086 /var/run/avahi-daemon/socket unix 2 [ ACC ] STREAM LISTENING 4319 /var/run/audispd_events unix 2 [ ] DGRAM 1198 @/org/kernel/udev/udevd unix 2 [ ] DGRAM 6128 @/org/freedesktop/hal/udev_event unix 2 [ ACC ] STREAM LISTENING 5334 /var/lib/mysql/mysql.sock unix 2 [ ACC ] STREAM LISTENING 4828 /var/run/dbus/system_bus_socket unix 2 [ ACC ] STREAM LISTENING 4892 /var/run/sdp unix 2 [ ACC ] STREAM LISTENING 4978 /var/run/pcscd.comm unix 2 [ ACC ] STREAM LISTENING 5105 /var/run/acpid.socket unix 2 [ ACC ] STREAM LISTENING 6120 @/var/run/hald/dbus-YrhFOOWN6h unix 17 [ ] DGRAM 4350 /dev/log unix 3 [ ] STREAM CONNECTED 22481 unix 3 [ ] STREAM CONNECTED 22480 unix 2 [ ] DGRAM 22476 unix 2 [ ] DGRAM 7744 unix 3 [ ] STREAM CONNECTED 7546 /tmp/.X11-unix/X0 unix 3 [ ] STREAM CONNECTED 7545 unix 3 [ ] STREAM CONNECTED 7492 /tmp/.X11-unix/X0 unix 3 [ ] STREAM CONNECTED 7491 unix 3 [ ] STREAM CONNECTED 7457 /tmp/.font-unix/fs7100 unix 3 [ ] STREAM CONNECTED 7456 unix 3 [ ] STREAM CONNECTED 7356 @/tmp/fam-root- unix 3 [ ] STREAM CONNECTED 7355 unix 3 [ ] STREAM CONNECTED 7342 /var/run/dbus/system_bus_socket unix 3 [ ] STREAM CONNECTED 7341 unix 3 [ ] STREAM CONNECTED 7176 /var/run/pcscd.comm unix 3 [ ] STREAM CONNECTED 7175 unix 2 [ ] DGRAM 7164 unix 3 [ ] STREAM CONNECTED 7160 /var/run/acpid.socket unix 3 [ ] STREAM CONNECTED 7159 unix 3 [ ] STREAM CONNECTED 7468 /tmp/.X11-unix/X0 unix 3 [ ] STREAM CONNECTED 7156 unix 3 [ ] STREAM CONNECTED 6777 /var/run/dbus/system_bus_socket unix 3 [ ] STREAM CONNECTED 6776 unix 3 [ ] STREAM CONNECTED 6756 @/var/run/hald/dbus-Y6WUEzGrgw unix 3 [ ] STREAM CONNECTED 6755 unix 3 [ ] STREAM CONNECTED 6620 @/var/run/hald/dbus-Y6WUEzGrgw unix 3 [ ] STREAM CONNECTED 6617 unix 3 [ ] STREAM CONNECTED 6583 /var/run/acpid.socket unix 3 [ ] STREAM CONNECTED 6582 unix 3 [ ] STREAM CONNECTED 6574 @/var/run/hald/dbus-Y6WUEzGrgw unix 3 [ ] STREAM CONNECTED 6573 unix 3 [ ] STREAM CONNECTED 6123 @/var/run/hald/dbus-YrhFOOWN6h unix 3 [ ] STREAM CONNECTED 6122 unix 3 [ ] STREAM CONNECTED 6089 /var/run/dbus/system_bus_socket unix 3 [ ] STREAM CONNECTED 6088 unix 3 [ ] STREAM CONNECTED 6083 unix 3 [ ] STREAM CONNECTED 6082 unix 2 [ ] DGRAM 6080 unix 2 [ ] DGRAM 5915 unix 2 [ ] DGRAM 5743 unix 3 [ ] STREAM CONNECTED 5721 unix 3 [ ] STREAM CONNECTED 5720 unix 3 [ ] STREAM CONNECTED 5713 unix 3 [ ] STREAM CONNECTED 5712 unix 2 [ ] DGRAM 5665 unix 2 [ ] DGRAM 5165 unix 2 [ ] DGRAM 5065 unix 2 [ ] DGRAM 5018 unix 2 [ ] DGRAM 4977 unix 3 [ ] STREAM CONNECTED 4891 /var/run/dbus/system_bus_socket unix 3 [ ] STREAM CONNECTED 4890 unix 2 [ ] DGRAM 4864 unix 2 [ ] DGRAM 4854 unix 3 [ ] STREAM CONNECTED 4832 unix 3 [ ] STREAM CONNECTED 4831 unix 3 [ ] STREAM CONNECTED 4595 unix 3 [ ] STREAM CONNECTED 4594 unix 2 [ ] DGRAM 4461 unix 2 [ ] DGRAM 4358 unix 3 [ ] STREAM CONNECTED 4314 unix 3 [ ] STREAM CONNECTED 4313
netstat -aon --ip
[oc@centos5 ~]$ netstat -aon --ip Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State Timer tcp 0 0 0.0.0.0:645 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:5432 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 0.0.0.0:445 0.0.0.0:* LISTEN off (0.00/0/0) tcp 0 0 192.168.170.21:445 192.168.170.1:1064 ESTABLISHED keepalive (3259.99/0/0) udp 0 0 127.0.0.1:32768 127.0.0.1:32768 ESTABLISHED off (0.00/0/0) udp 0 0 0.0.0.0:32769 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:642 0.0.0.0:* off (0.00/0/0) udp 0 0 192.168.170.21:137 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:137 0.0.0.0:* off (0.00/0/0) udp 0 0 192.168.170.21:138 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:138 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:5353 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:111 0.0.0.0:* off (0.00/0/0) udp 0 0 192.168.170.21:123 0.0.0.0:* off (0.00/0/0) udp 0 0 127.0.0.1:123 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:123 0.0.0.0:* off (0.00/0/0) udp 0 0 0.0.0.0:639 0.0.0.0:* off (0.00/0/0)
環境
- CentOS release 5.2 (Final)
普段使ってるコマンドでも、知らないオプションはたくさんあるんだよな。
使い方が定型化してるものはマニュアルも確認しないから、TwitterのTLに
知らないコマンドやコマンドオプションが流れるのはありがたい。
気になるモノ
抗菌・アロマ・LED機能がついた、うるおい細霧ミスト加湿器【即納】アピックス(APIX) アロマ加... |