Czasem trzeba wyrzuci\u0107 kilka maili z kolejki albo wykona\u0107 jak\u0105\u015b inn\u0105 operacj\u0119 wymagaj\u0105c\u0105 z\u0142o\u017cenia kilku polece\u0144 do kupy. Dla starych wyjadaczy to \u017caden problem i pewnie zrobiliby to bardziej optymalnie, ale ja w\u0142a\u015bnie postanowi\u0142em rozpocz\u0105\u0107 cykl, kt\u00f3ry pocz\u0105tkowo nazwa\u0142em “Jednowierszowce<\/b>“, a teraz przemianowa\u0142em na “Skrypty<\/b>” gdzie b\u0119d\u0119 wrzuca\u0142 jednowierszowe i nieco d\u0142u\u017csze skrypty shellowe (i inne), kt\u00f3re mam nadziej\u0119 b\u0119d\u0105 przydatne i zrozumia\u0142e dla szerszego grona u\u017cytkownik\u00f3w.<\/p>\n
Na pocz\u0105tek wyrzucimy z kolejki poczty kilka zwrotek, czyli maile od MAILER-DAEMON. Nie pytajcie mnie dlaczego – przyk\u0142adowo. Tym razem opisz\u0119 to krok po kroku. Oto przyk\u0142ad jak wygl\u0105da kawa\u0142ek kolejki w postfixie:<\/p>\n
# mailq\r\n-Queue ID- --Size-- ----Arrival Time---- -Sender\/Recipient-------\r\n571AAC45 48204 Tue Dec 21 07:52:39 MAILER-DAEMON\r\n (connect to example.com[221.X.X.70]:25: Connection refused)\r\n datadm@example.com\r\n...\r\n<\/code><\/pre>\nNo to wybierzmy sobie tylko te maile, kt\u00f3re s\u0105 od MAILER-DAEMON:<\/p>\n
# mailq|grep MAILER-DAEMON\r\n571AAC45 48204 Tue Dec 21 07:52:39 MAILER-DAEMON\r\n5C0671838 4528 Mon Dec 20 15:19:35 MAILER-DAEMON\r\n806BF1FB0 12469 Mon Dec 20 00:38:55 MAILER-DAEMON\r\n2CDC81BDE 47643 Mon Dec 20 12:05:33 MAILER-DAEMON\r\n623E21AFE 4096 Mon Dec 20 13:16:59 MAILER-DAEMON\r\n682491647 11799 Wed Dec 22 06:18:43 MAILER-DAEMON\r\n...\r\n<\/code><\/pre>\nWszelkie dzia\u0142ania na kolejce opieraj\u0105 si\u0119 na Queue-ID, potrzebujemy wi\u0119c tylko pierwsz\u0105 kolumn\u0119, mo\u017cemy to zrobi\u0107 np. tak:<\/p>\n
# mailq|grep MAILER-DAEMON|cut -d\" \" -f1\r\n571AAC45\r\n5C0671838\r\n806BF1FB0\r\n2CDC81BDE\r\n623E21AFE\r\n682491647\r\n...\r\n<\/code><\/pre>\nI to wystarczy ju\u017c pos\u0142a\u0107 do polecenia postsuper<\/code>:<\/p>\n# mailq|grep MAILER-DAEMON|grep ^5|cut -d\" \" -f1|postsuper -d -\r\npostsuper: 571AAC45: removed\r\npostsuper: 5C0671838: removed\r\npostsuper: Deleted: 2 messages\r\n<\/code><\/pre>\nOgraniczy\u0142em powy\u017cej zakres do tych, kt\u00f3re zaczynaj\u0105 si\u0119 od cyfry 5 (grep ^5<\/code>), \u017ceby pokaza\u0107 Wam, \u017ce polecenia grep<\/code> i cut<\/code>, mo\u017cna zast\u0105pi\u0107 jednym poleceniem gawk<\/code> (GNU awk):<\/p>\n# mailq|gawk '\/MAILER-DAEMON\/ { print $1 }'|postsuper -d -\r\npostsuper: 806BF1FB0: removed\r\npostsuper: 2CDC81BDE: removed\r\npostsuper: 623E21AFE: removed\r\npostsuper: 682491647: removed\r\n...\r\n<\/code><\/pre>\nJe\u015bli zdarzy si\u0119, \u017ce lista argument\u00f3w jest zbyt d\u0142uga, to przed postsuper<\/code> nale\u017cy zastosowa\u0107 jeszcze polecenie xargs<\/code>.<\/p>\n<\/p>\n","protected":false},"excerpt":{"rendered":"
Czasem trzeba wyrzuci\u0107 kilka maili z kolejki albo wykona\u0107 jak\u0105\u015b inn\u0105 operacj\u0119 wymagaj\u0105c\u0105 z\u0142o\u017cenia kilku polece\u0144 do kupy. Dla starych wyjadaczy to \u017caden problem i pewnie zrobiliby to bardziej optymalnie, ale ja w\u0142a\u015bnie postanowi\u0142em...<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[],"tags":[],"jetpack_publicize_connections":[],"acf":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p7M9Tz-5x","jetpack-related-posts":[{"id":233,"url":"https:\/\/drfugazi.eu.org\/en\/usuwanie-poczty\/","url_meta":{"origin":343,"position":0},"title":"Usuwanie poczty z kolejki","author":"drfugazi","date":"Tuesday December 21st, 2010","format":false,"excerpt":"Czasem trzeba wyrzuci\u0107 kilka maili z kolejki albo wykona\u0107 jak\u0105\u015b inn\u0105 operacj\u0119 wymagaj\u0105c\u0105 z\u0142o\u017cenia kilku polece\u0144 do kupy. Dla starych wyjadaczy to \u017caden problem i pewnie zrobiliby to bardziej optymalnie, ale ja w\u0142a\u015bnie postanowi\u0142em rozpocz\u0105\u0107 cykl pod tytu\u0142em \"Jednowierszowce\", gdzie b\u0119d\u0119 wrzuca\u0142 jednowierszowe skrypty shellowe (i inne), kt\u00f3re mam nadziej\u0119\u2026","rel":"","context":"In \"Postfix\"","block_context":{"text":"Postfix","link":"https:\/\/drfugazi.eu.org\/en\/tag\/postfix\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":358,"url":"https:\/\/drfugazi.eu.org\/en\/how-remove-mail-postfix-queue\/","url_meta":{"origin":343,"position":1},"title":"How to remove mail from Postfix queue","author":"drfugazi","date":"Friday June 29th, 2012","format":false,"excerpt":"Sometimes you need to remove some mail from queue or do other things in shell. For experienced administrators this is not a problem, but I decided to write some usable shell commands and scripts for less experienced users. Here are few commands to remove mail from Postfix queue. Don't ask\u2026","rel":"","context":"In "Oneliners"","block_context":{"text":"Oneliners","link":"https:\/\/drfugazi.eu.org\/en\/category\/oneliners\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":365,"url":"https:\/\/drfugazi.eu.org\/en\/pigeonhole-implementacja-sieve-dla-dovecot\/","url_meta":{"origin":343,"position":2},"title":"Pigeonhole – Sieve support for Dovecot","author":"drfugazi","date":"Friday July 6th, 2012","format":false,"excerpt":"Overview Pigeonhole is the name of the project that adds support for the Sieve language (RFC 5228) and the ManageSieve protocol (RFC 5804) to the Dovecot Secure IMAP Server. In the literal sense, a pigeonhole is a a hole or recess inside a dovecot for pigeons to nest in. It\u2026","rel":"","context":"In "Mail system"","block_context":{"text":"Mail system","link":"https:\/\/drfugazi.eu.org\/en\/category\/mail-system\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":177,"url":"https:\/\/drfugazi.eu.org\/en\/","url_meta":{"origin":343,"position":3},"title":"BlackBerry po raz pierwszy","author":"drfugazi","date":"Thursday June 3rd, 2010","format":false,"excerpt":"Kilka dni temu dosta\u0142em kopi\u0119 s\u0142u\u017cbowego maila na temat mo\u017cliwo\u015bci uruchomienia us\u0142ugi (rozwi\u0105zania) BlackBerry na Uniwersytecie. Wywnioskowa\u0142em z niej, \u017ce trzeba rozpozna\u0107 temat i zaj\u0105\u0107 si\u0119 uruchomieniem oprogramowania, kt\u00f3re b\u0119dzie tak\u0105 us\u0142ug\u0119 \u015bwiadczy\u0107. Jako \u017ce nasze serwery poczty nie pracuj\u0105 pod kontrol\u0105 \u017cadnego z wymienionych system\u00f3w: MS Exchange, IBM Lotus\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":317,"url":"https:\/\/drfugazi.eu.org\/en\/blackberry-po-raz-pierwszy\/","url_meta":{"origin":343,"position":4},"title":"BlackBerry po raz pierwszy","author":"","date":"Thursday June 3rd, 2010","format":false,"excerpt":"Kilka dni temu dosta\u0142em kopi\u0119 s\u0142u\u017cbowego maila na temat mo\u017cliwo\u015bci uruchomienia us\u0142ugi (rozwi\u0105zania) BlackBerry na Uniwersytecie. Wywnioskowa\u0142em z niej, \u017ce trzeba rozpozna\u0107 temat i zaj\u0105\u0107 si\u0119 uruchomieniem oprogramowania, kt\u00f3re b\u0119dzie tak\u0105 us\u0142ug\u0119 \u015bwiadczy\u0107. Jako \u017ce nasze serwery poczty nie pracuj\u0105 pod kontrol\u0105 \u017cadnego z wymienionych system\u00f3w: MS Exchange, IBM Lotus\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":373,"url":"https:\/\/drfugazi.eu.org\/en\/budowa-systemu-pocztowego\/","url_meta":{"origin":343,"position":5},"title":"Building mail system","author":"drfugazi","date":"Monday August 13th, 2012","format":false,"excerpt":"This description is based on my experience, which I gained during mail system implementation on University of Silesia (Katowice\/Poland). In the first stage there was about 3 000 of users, now the system is handling about 40 k of mail users. Whole system (exluding Sophos AV) is based on Open\u2026","rel":"","context":"In "Mail system"","block_context":{"text":"Mail system","link":"https:\/\/drfugazi.eu.org\/en\/category\/mail-system\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/drfugazi.eu.org\/en\/wp-json\/wp\/v2\/posts\/343"}],"collection":[{"href":"https:\/\/drfugazi.eu.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/drfugazi.eu.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/drfugazi.eu.org\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/drfugazi.eu.org\/en\/wp-json\/wp\/v2\/comments?post=343"}],"version-history":[{"count":0,"href":"https:\/\/drfugazi.eu.org\/en\/wp-json\/wp\/v2\/posts\/343\/revisions"}],"wp:attachment":[{"href":"https:\/\/drfugazi.eu.org\/en\/wp-json\/wp\/v2\/media?parent=343"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/drfugazi.eu.org\/en\/wp-json\/wp\/v2\/categories?post=343"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/drfugazi.eu.org\/en\/wp-json\/wp\/v2\/tags?post=343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}