{"id":2027,"date":"2018-08-14T06:27:34","date_gmt":"2018-08-13T21:27:34","guid":{"rendered":"http:\/\/matoken.org\/blog\/?p=2027"},"modified":"2018-08-23T18:24:49","modified_gmt":"2018-08-23T09:24:49","slug":"gnu-coreutils-dd-had-a-progress-option","status":"publish","type":"post","link":"https:\/\/matoken.org\/blog\/2018\/08\/14\/gnu-coreutils-dd-had-a-progress-option\/","title":{"rendered":"GNU coreutils \u306e dd \u306b \u30d7\u30ed\u30b0\u30ec\u30b9\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u3042\u3063\u305f"},"content":{"rendered":"
\n

dd \u306e\u9032\u6357\u306f SIGUSR1 \u3092\u6295\u3052\u308b\u3068\u899a\u3048\u3066\u3044\u305f\u306e\u3067\u3059\u304c\uff0cman \u3092\u773a\u3081\u3066\u3044\u308b\u3068 status=progress<\/code> \u3068\u3044\u3046\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u3042\u308b\u306e\u306b\u6c17\u3065\u304d\u307e\u3057\u305f\uff0e<\/p>\n<\/div>\n

\n
\n
man\u3088\u308a<\/div>\n
\n
\n
status=LEVEL\r\n       The LEVEL of information to print to stderr; 'none' suppresses\r\n       everything but error messages, 'noxfer' suppresses  the  final\r\n       transfer  statistics,  'progress' shows periodic transfer sta\u2010\r\n       tistics<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\n
2015-07-03 \u306e GNU coreutils 8.24 \u3067\u5165\u3063\u305f\u3088\u3046\u3067\u3059\uff0e<\/p>\n<\/div>\n
\n
\n
[coreutils-announce] coreutils-8.24 released [stable]<\/a><\/div>\n
\n
\n
dd accepts a new status=progress level to print data transfer statistics\r\non stderr approximately every second.<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\n
\u3053\u308c\u307e\u3067\u3082\u72ec\u81ea\u30d1\u30c3\u30c1\u3067dd\u306b\u30d7\u30ed\u30b0\u30ec\u30b9\u3092\u51fa\u3059\u3088\u3046\u306b\u3059\u308b\u3082\u306e\u306a\u3069\u306f\u3042\u308a\u307e\u3057\u305f\u304cGNU dd\u306b\u5c0e\u5165\u3055\u308c\u3066\u3044\u305f\u3093\u3067\u3059\u306d\uff0e\u6c17\u3065\u304d\u307e\u305b\u3093\u3067\u3057\u305f\uff0e<\/p>\n<\/p>\n
\u3066\u3053\u3068\u3067\u8a66\u3057\u3066\u307f\u307e\u3059\uff0e\u307e\u305a\u306f\u5f93\u6765\u306e\u65b9\u6cd5\u304b\u3089\uff0e<\/p>\n<\/div>\n
\n
dd\u958b\u59cb<\/div>\n
\n
$ dd if=\/dev\/urandom of=\/dev\/null count=99999 &\r\n[1] 19386<\/code><\/pre>\n<\/div>\n<\/div>\n
\n
kill\u30b3\u30de\u30f3\u30c9\u3067 USER1<\/code> \u30b7\u30b0\u30ca\u30eb\u3092\u6295\u3052\u308b<\/div>\n
\n
$ kill -USR1 19522\r\n2294+0 \u30ec\u30b3\u30fc\u30c9\u5165\u529b\r\n2293+0 \u30ec\u30b3\u30fc\u30c9\u51fa\u529b\r\n2404384768 bytes (2.4 GB, 2.2 GiB) copied, 11.0258 s, 218 MB\/s<\/code><\/pre>\n<\/div>\n<\/div>\n
\n
killall\u30b3\u30de\u30f3\u30c9\u3067pid\u3067\u306f\u306a\u304f\u30d7\u30ed\u30bb\u30b9\u540d\u3092\u6307\u5b9a<\/div>\n
\n
$ killall -USR1 dd\r\n15648+1 \u30ec\u30b3\u30fc\u30c9\u5165\u529b\r\n15647+1 \u30ec\u30b3\u30fc\u30c9\u51fa\u529b\r\n16407664896 bytes (16 GB, 15 GiB) copied, 76.1063 s, 216 MB\/s<\/code><\/pre>\n<\/div>\n<\/div>\n
\n
\n
\n
\u203bpkill\u3092\u4f7f\u3046\u3068\u90e8\u5206\u4e00\u81f4\u306b\u306a\u308b\u306e\u3067\u610f\u56f3\u3057\u306a\u3044\u30d7\u30ed\u30bb\u30b9\u306b\u30b7\u30b0\u30ca\u30eb\u3092\u9001\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f<\/p>\n<\/div>\n
\n
\n
$ pgrep dd\r\n2\r\n70\r\n3937\r\n$ ps 2 70 3937\r\n  PID TTY      STAT   TIME COMMAND\r\n    2 ?        S      0:00 [kthreadd]\r\n   70 ?        I<     0:00 [ipv6_addrconf]\r\n 3937 pts\/9    R      0:13 dd if=\/dev\/urandom of=\/dev\/null bs=1M count=99999<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\n
watch\u30b3\u30de\u30f3\u30c9\u3067\u5b9a\u671f\u7684\u306b\u5b9f\u884c<\/div>\n
\n
$ watch killall -USR1 dd\r\n98448+3 \u30ec\u30b3\u30fc\u30c9\u5165\u529b\r\n98447+3 \u30ec\u30b3\u30fc\u30c9\u51fa\u529b\r\n103231407040 bytes (103 GB, 96 GiB) copied, 487.072 s, 212 MB\/s\r\n :<\/code><\/pre>\n<\/div>\n<\/div>\n
\n
dd\u30b3\u30de\u30f3\u30c9\u5b9f\u884c\u6642\u306bpv\u30b3\u30de\u30f3\u30c9\u3092\u631f\u3080<\/div>\n
\n
$ cat \/dev\/urandom | pv | dd of=\/dev\/null bs=1M count=99999\r\n1.06GiB 0:00:06 [ 182MiB\/s] [     <=>                                        ]<\/code><\/pre>\n<\/div>\n<\/div>\n
\n
pv\u30b3\u30de\u30f3\u30c9\u3067\u30d5\u30a1\u30a4\u30eb\u51fa\u529b<\/div>\n
\n
$ pv \/dev\/urandom | dd of=\/dev\/null bs=1M count=99999\r\n 502MiB 0:00:03 [ 170MiB\/s] [  <=>                                           ]<\/code><\/pre>\n<\/div>\n<\/div>\n
\n
dd\u306e status=progress<\/code> \u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u5229\u7528<\/div>\n
\n
$ dd if=\/dev\/urandom of=\/dev\/null bs=1M count=99999 status=progress\r\n1910505472 bytes (1.9 GB, 1.8 GiB) copied, 9 s, 212 MB\/s<\/code><\/pre>\n<\/div>\n<\/div>\n
\n