<address id="bztp3"><nobr id="bztp3"></nobr></address>

      <sub id="bztp3"><listing id="bztp3"><menuitem id="bztp3"></menuitem></listing></sub>

        <form id="bztp3"></form>

        <address id="bztp3"></address>
        <sub id="bztp3"></sub>

          <form id="bztp3"></form>

              Linux系統管理之at命令解析【每日一個知識點第166期-Linux】

              使用Linux系統必備的技能之一就是Linux進程管理,系統運行的過程正是無數進程在運行的過程。今天我們就來了解一下at命令。


              at命令用于在指定時間執行命令。at允許使用一套相當復雜的指定時間的方法。它能夠接受在當天的hh:mm(小時:分鐘)式的時間指定。假如該時間已過去,那么就放在第二天執行。當然也能夠使用midnight(深夜),noon(中午),teatime(飲茶時間,一般是下午4點)等比較模糊的?詞語來指定時間。用戶還能夠采用12小時計時制,即在時間后面加上AM(上午)或PM(下午)來說明是上午還是下午。?也能夠指定命令執行的具體日期,指定格式為month?day(月?日)或mm/dd/yy(月/日/年)或dd.mm.yy(日.月.年)。指定的日期必須跟在指定時間的后面。

              上面介紹的都是絕對計時法,其實還能夠使用相對計時法,這對于安排不久就要執行的命令是很有好處的。指定格式為:now?+?count?time-units,now就是當前時間,time-units是時間單位,這里能夠是minutes(分鐘)、hours(小時)、days(天)、weeks(星期)。count是時間的數量,究竟是幾天,還是幾小時,等等。?更有一種計時方法就是直接使用today(今天)、tomorrow(明天)來指定完成命令的時間。

              語法

              at(選項)(參數)

              選項

              -f:指定包含具體指令的任務文件;
              -q:指定新任務的隊列名稱;
              -l:顯示待執行任務的列表;
              -d:刪除指定的待執行任務;
              -m:任務執行完成后向用戶發送E-mail

              參數

              日期時間:指定任務執行的日期時間。

              實例

              三天后的下午?5?點鍾執行/bin/ls

              [root@localhost ~]# at 5pm+3 days
              at> /bin/ls
              at> <EOT>
              job 7 at 2013-01-08 17:00

              明天17點鐘,輸出時間到指定文件內:

              [root@localhost ~]# at 17:20 tomorrow
              at> date >/root/2013.log
              at> <EOT>
              job 8 at 2013-01-06 17:20

              計劃任務設定后,在沒有執行之前我們可以用atq命令來查看系統沒有執行工作任務:

              [root@localhost ~]# atq
              8       2013-01-06 17:20 a root
              7       2013-01-08 17:00 a root

              刪除已經設置的任務:

              [root@localhost ~]# atq
              8       2013-01-06 17:20 a root
              7       2013-01-08 17:00 a root
              
              [root@localhost ~]# atrm 7
              [root@localhost ~]# atq
              8       2013-01-06 17:20 a root

              顯示已經設置的任務內容:

              [root@localhost ~]# at -c 8
              #!/bin/sh
              # atrun uid=0 gid=0
              # mail     root 0
              umask 22此處省略n個字符
              date >/root/2013.log

              《Linux學習每日一個知識點》欄目是馬哥教育Linux云計算年薪20萬+的學員社群特別發起,分享Linux工具、Linux語法、Linux項目等知識點,幫助大家快速的了解Linux學習,快速步入Linux高薪的快車道。

              【超全整理】《Linux云計算從入門到精通》linux學習入門教程系列實戰筆記全放送

              相關新聞

              聯系我們

              400-080-6560

              在線咨詢:點擊這里給我發消息

              郵件:work@magedu.com

              工作時間:周一至周日,09:00-18:30

              QR code
              656彩票平台656彩票主页656彩票网站656彩票官网656彩票娱乐 www.263988.com | www.hg8169.com | www.557588.com | www.81776.com | www.889tyc.com | www.9906132.com | www.896suncity.com | www.998855q.com | www.99113z.com | www.6bet005.com | www.490803.com | www.81608f.com | www.77801h.com | www.1368h.cc | www.596608.com | www.186792.com | 4260022.com | 1489y.com | 33005156.com | 38244v.com | 26668v.com | www.68666m.com | www.7830i.com | www.889tyc.com | www.608568.com | www.704905.com | www.ampj.com | www.akw0.com | www.221075.com | www.f948f.com | www.9170115.com | www.4361.co | www.6364t.com | www.607263.com | 56987zz.com | wlb888.com | 4066h.com | 84496633.com | www.64448.com | www.888vip6.com | www.vns1988.com | www.cpa866.com | www.3983119.com | www.966668.com | www.33598m.com | www.cp718.vip | www.188737.com | 9390009.com" | so55555.cc | 76543p.com | www.76060y.com | www.189555.com | www.983888c.com | www.556537.com | www.yh66266.com | www.fen09.com | www.257512.com | 22883z.com | 5295g.com | 32126v.net | 3016ccc.com | www.bet365de.com | www.yt7488.com | www.4136f.com | www.415977.com | www.8667z.com | www.500231.com | nf6655.com | 20188b.com | 50000027.com | www.4123g.app | www.808888y.com | www.0088hgii.com | www.50026d.com | www.619939.com | 5004nn.com | 33013.com | 22556b.com | www.78am9999.com | www.80188p.com | www.8d444.com | www.820155.com | 876878v.com | tt888l.com | 6830w.com | www.a7892904.com | www.8313s.com | www.87668j.com | www.515848.com | 56988pp.com | 40033r.com | www.vns9.com | www.a81e.cc | www.4809p.com | www.qucw2.com | v997a.com | 58222d.com | 1665pp.com | www.1118kj.cc | www.07679r.com | www.918ar.com | 22556o.com | 11177381.com | 06006e.com | www.xpj3578.com | www.1122xpj.net | www.71399y.com | www.276081.com | hc9966.com | 00778f.com | www.705msc.com | www.56720.com | www.504733.com | 1489h.com | 44077o.com | www.kjjg.net | www.997263.com | www.401281.com | p838.com | www.dfs997.com | www.jy738.com | www.07163i.com | www.88266o.com | 0234i.com | www.c67783.com | www.2945n.com | www.50054h.com | 338499.com | 30688d.com | www.3459a.com | www.63606z.com | www.965191.com | vbet.io | 3685j.com | www.5678655.com | www.5981k.com | www.88266j.com | www.62118a.com | 4136k.com | www.353599.com | www.bwinyz24.com | www.566668.com | 9607x.vip | www.glc11.com | www.50999c.com | www.3126s.com | 9895u.com | 3225t.com | www.490034.com | www.60108z.com | 650661.com | wnsfw.com | www.289333.com | www.sx1800.com | 0201.cm | 8988r.com | www.29962.com | www.bj1111.com | 58802n.com | 4182.com | www.2244-0880.com | www.66653j.com | p88890.com | f2554.com | www.hf9018.com | www.81699.cc | 272pp.net | 131e.net | www.7415y.com | www.371i.cc | vv00558.com | www.hggj.cc | www.12136g.com | www.120057.com | jj38648.com | www.678309.com | www.9478g.com | 6033g.com | www.kb9988.com | www.07679o.com | 79964.com | 2864z.com | www.8313z.com | www.524947.com | 4255.com | www.35877c.com | www.66ffs.com | j84105.com | www.2846m.com | www.00889a.com | 56988a.com | www.wugou135.com | www.0622iii.com | www.55228i.com | 2012.com | www.85jsjs.com | www.318548.com | 09266333.com | www.331333.com | www.5095s.com | y5429.com | www.yhc573.com | www.07163i.com | 0615010.com | www.ab678.com | www.sx1800.com | wot.kongzhong.com | www.0636c.com | www.065825.com | 3552d.com | www.70088hg.com | www.1434p.com | 4123ww.com | www.537bet.com | www.4331f.com | 77885002.com | www.f5566.com | www.87668j.com | ll7742.com | www.dy6611.com | www.5856861.com | 3189z.com | 47749w.com | www.80188s.com | 5539822.com | 6660458.com | www.506930.com | j5429.com | www.mgm006.com | www.81678j.com | 20160913.one | www.81306b.com | www.828326.com | 8988o.com | www.2002366.com | 5001m.com | www.vipcc.com | www.78949n.com | 17765.com | www.4058s.com | www.680352.com | p888rr.com | www.593152.com | 1123222.com | www.777444l.com | www.5095x.com | bet28g.com | www.358vns.com | www.803402.com | 1077kk.com | www.5719c.com | 8547.com | www.xpj180.com | www.622703.com | 500000951.com | www.7920l.com | 3424a.com | www.a4116.com | www.572102.com | 4997n.com | www.9989575.com | 019dh.com | www.ly09.com | 3009s.com | www.8814e9.com | www.22ckb.com | 8547ss.com | www.540729.com | wb750.com | www.591999.com | www.338057.com | zhcp97.com | www.97828d.vip | 56988mm.com | www.3029.com | js89t.vip | www.hg9396.com | www.770816.com | 4052aa.com | www.78949c.com | 51200.com | www.pjc11.vip | 9068aa.com | www.3846k.com | 84498833.com | www.85016.com | www.223085.com | www.bg999333.com | www.937652.com | feicai0979.com | www.66376s.com | 25288q.com | www.32031h.com | 2019ff.cc | www.246hao.com | xpj377c.com | www.88570.com | www.xinyc2.com | www.995n.net | www.377503.com | www.2xinhao.com | www.860705.com | www.yh77706.com | www.ya066.com | 5004h.com | www.4189d.com | 2019c.cc | www.5095r.com | 111122xx.com | www.35918y.com | 168cp-f.com | www.772222.biz | yf788.net | www.fg9907.com | mm1915.com | www.68993223.com | 91019f.com | www.400849.com | 76886j.com | www.376500.com | bb33338.com | www.6768995.com | 26789.com | www.b98478.com | 808cp.org | www.57578j.com | vip31447.com | www.26299b.com | 3656.ch | www.66652n.com | jjj8827.com | www.22503.cc | www.a3a333.net | www.805595.com | www.56520t.com | www.170792.com | www.734069.com | am2984.com | www.80365.bet | 3473z.com | www.bwinyz22.com | 9737.com | www.2418003.com | pc5162.cn | www.5091b.com | jinlong03.com | www.6832i.com | www.yh40.net | www.656270.com | www.2626sun.com | 51122.com | www.4556711.com | 7720u.com | www.sha8000.com | 075nn.com | www.75650.net | 2306k.com | www.fcff4.com | www.hg226.cm | 2222k33.com | www.35252s.com | ambyc8.com | www.4833045.com | 66876b.com | www.589zf.com | www.j32126.cc | www.433737.com | www.amdc0005.com | 666vn77.com | www.9737zz.me | 57157j.com | www.80075c.com | www.56012.com | www.236002.com | www.ttt996.com | 850864.com | www.535220.com | h8030.com | www.709337.com | www.794933.com | 6423e.com | www.v2222.com | sj7377.com | www.870035.com | www.7036ee.com | 123456.cc | www.2bet005.com | 4995e.com | www.68682m.com | www.sun8558.com | 33778016.com | www.7225m.com | 0808bc.com | www.908673.com | www.wns7657.com | js666.com | www.5953838.com | 5369m.com | www.001036.com | www.58118b.com | 3640p.com | www.sxyl3.com | www.yh8352.com | 25115.am | www.win9789.com | 22883w.com | 16690088.com | www.4996dl.com | 7720h.com | www.639477.com | www.778879.com | 809h39.com | www.0014m.com | www.hg285.com | 11184066.com | www.0270j.com | www.hg789.xyz | zhcp42.com | www.77424.com | www.ra1112.com | yl-26.com | www.4828448.com | p8381.com | www.809215.com | www.ns1122.com | 4036356.com | www.898140.com | www.111889.com | 6396w.com | www.715121.com | www.6638555.com | 614151.com | www.607269.com | www.77ok.com | y68147.com | www.bizhong55.com | www.04567e.com | du365.com | www.506951.com | www.35252q.com | 20739455.com | www.308126.com | www.cn365f.com | 99111rr.com | 3379y.com | www.blr0044.com | www.yh8217.com | 0824.com | www.73166.com | www.julongjy888.com | 4488ll.com | www.607323.com | www.sbd023.net | 6245r.com | v93902.com | www.55676d.com | www.8494t.com | 7634245.xyz | www.8667t.com | www.53322888.com | 1253-2.com | www.055979.com | www.07679s.com | www.vnsr600.com | 8520v.com | www.2373d.com | www.ccc609.com | 32126t.net | 1407q.com | www.9996ii.com | www.25288w.com | 5622l.com | www.3005.am | www.138cpy.com | mr007.com | 6647x.com | www.130057.com | www.334msc.com | 7042004.com | qq365x.com | www.hg873.com | www.yabet365.com | h82365.com | 9566362.com | www.28891d.com | www.73999u.com | am99914.com | www.188712.com | www.1559507.com | www.pjbet333.com | 8898222.com | www.565378.com | www.2807777.com | www.66930011.com | 463a8.com | www.aa3479.com | www.27363k.com | m0083.com | 3178zz.com | www.2373e.com | www.z32939.com | www.8134.cc | bh55654.com | www.287926.com | www.win1235.com | www.kk685.com | 3245q.com | 9649.com | www.751898.com | www.63606n.com | www.4938c.com | 3568d.com | 80368gg.com | www.1100.net | www.4676.cc | nyty02.com | 1294t.com | www.296233.com | www.hg6634.com | www.011116.com | 800034338.com | 55899o.com | www.234265.com | www.js520988.cn | www.cr811.com | 528866.com | pj700.cc | www.452823.com | www.7140588.com | www.456990.com | 50029988.com | 88905050.com | dzjgw1111.com | www.371r.cc | www.9895w.com | www.9411.am | 6220v.com | ddh5154.com | www.110879.com | www.08588v.com | www.hf9016.com | www.63877l.com | 4488d.com | 11001468.com | www.585560.com | www.9238777.com | www.33707.com | www.333133e.com | 444000u.com | 3405yy.com | www.50788i.com | www.3478i.cc | www.zpw100.com | www.js504.com | 5005m.com | 3614j.com | zgfcw.cc | www.239644.com | www.23636m.com | www.30350w.com | www.76775h.com | www.76060c.com | 8988r.com | 56988c.com | 00337076.com | www.980771.com | www.997263.com | www.365022.bet | www.9889msc.com | 7088000.com | xhtdbaidu.com | 55822.com | ww3822.com | www.976357.com | www.6858666.com | www.4996gy.com | www.442244.com | www.727xpj.com | 20055577.com | dingji0088.com | 0747zz.com | www.689477.com | www.36788k.com | www.56011v.com | www.28000t.com | www.8898hg.com | www.benz4433s.com | 3225.com | 8381007.com | zhcpyy.com | 1429t.com | www.709720.com | www.50026z.com | www.4809v.com | www.673888z.com | www.312288a.com | www.js3451.bet | www.vns0600.com | 3089l.com | 3404j.cc | 0638kkk.net | bb888833.com | r17.com | www.910977.com | www.39957g.com | www.68993259.com | www.99552kk.com | www.u32939.com | www.tm71.com | www.0235tt.com | www.yh66855.com | www.68666d.com | 33115ee.com | 13789.com | 4005dh.com | 2381xxx.com | 33dd8332.com | www.150882.com | www.655802.com | www.kc37.com | www.53539.cc | www.12455i.com | www.68993225.com | www.8577e.cc | www.06387788.com | www.1064g.com | www.hk278.com | www.a4568.com | www.w32126.cc | www.033033e.com | 50000027.com | 8290p.com | ti999.net | jing822.com | 57157m.com | oo67890.com | 4379c.com | 131n.net | 918.com | 500c28.com | 0906vip7.com | 8890815.com | x45638.com | 444365ggg.com | shsxiwl.cn | 0909.net | 4338099.com | 5539822.com | www.210715.com | www.700539.com | www.820289.com | www.916720.com | www.981090.com | www.c757.vip | www.cb7188.com | www.hm8222.com | www.c1968.com | www.cp701.vip | www.okw8.com | www.54844.com | www.8667t.com | www.3478w.cc | www.ya618.com | www.qml0.com | www.926280.com | www.849798.com | www.627069.com | www.508277.com | www.544669.com | www.451956.com | www.399210.com | www.301823.com | www.010585.com | P35oo.com | 预览7779o.cc | 610260.com | 7893dns.com | 36407788.com | 3999xl.com | 83138n.com | 3559ggg.com | 29918f.com | 888zrgw58ylc.com | 2846p.com | 937012.com | www.185ks.com | www.8882558.com | www.mng44.com | www.70022.com | www.la6666.com | www.27363f.com | www.938p.cc | www.00772p.com | www.xpj16682.com | www.2997709.com | www.5856872.com | www.75538c.com | www.3479aa.com | www.809573.com | www.507633.com | www.43131p.com | 1483p.com | 8003xl.com | c31hyu57.com | 3568nn.com | c89ew41.com | 7736w.com | www.yh5579.com | www.xg536.com | www.hrtsh.com | www.98698d.com | www.xj6003.com | www.6678693.com | www.08588c.com | www.808793.com | www.106596.com | 33382p.com | 11665003.com | 53262pp.com | 4023n.com | yin1044.com | www.63877g.com | www.hga8080.com | www.q456x.com | www.40288f.com | www.dayou800.com | www.c760.vip | www.137518.com | xj001a.com | 91019l.com | 3405zzz.com | 89777f.com | www.330099g.com | www.10444.com | www.653968.com | www.0099wd.com | www.975126.com | www.50064v.com | 933620.com | bet365.com | 7003w.com | 06006v.com | www.hg0012.com | www.cp0028.com | www.18456.com | www.51558.com | www.351376.com | bwin980.co | 4255x.com | mm33.vip | www.50044.com | www.5405006.com | www.10999z.com | www.ag.hg3005.com | www.914979.com | 22556h.com | js74120.com | qq365f.com | www.xinhao2233.com | www.hz444.com | www.2000c.cc | www.09500w.com | www.yc7701.com | 98345k.com | xpj98.com | www.hd1239.com | www.hg00868.com | www.4996wh.com | www.7239l.com | www.526031.com | 97618q.com | 58537777.com | www.yh8216.com | www.587002.com | www.56011p.com | www.9356v.com | www.71399u.com | 97987-6.com | 83377l.com | www.jqb9.com | www.ag0456.com | www.16878g.com | www.80065u.com | tz1333.com | 6220ee.com | www.9679t.com | www.10999b.com | www.35918d.com | www.61233v.com | 80892q.com | uu38648.com | www.10611a.com | www.4694f.com | www.80065r.com | www.77114a.com | 407ll.com | fuhao123.com | www.988778.com | www.5958121.com | www.887763.com | 9707365.com | 15856s.com | www.8694b.com | www.00773d.com | www.12455d.com | hga030.com | 4288s.com | www.6491i.com | www.c44yy.com | www.95111w.com | www.52072u.com | 80567v.com | www.38200v.com | www.983888b.com | www.57578d.com | www.78949i.com | yinhe638.com | 1wns.com | www.8k002.com | www.66376m.com | sbd023.net | 4289k.com | www.0088hg5.com | www.33678ss.com | www.770640.com | 6177006.com | 2009t.com | www.c558.vip | www.75353.cc | 0029d.com | 99332007.com | www.www55755.com | www.1429g5.com | www.935960.com | hg0088.pw | 9002.com | www.50999f.com | www.36166b.com | 7720s.com | 3336.com | www.4488tq.com | www.o98478.com | www.181599.com | 888991188.com | www.2287111.com | www.wns123i.com | www.566011.com | wnsr8801.com | www.525xpj.com | www.7893.com | www.791571.com | 2190b.com | www.vns383.com | www.xpj2050.com | www.hm6333.com | 6601vip.us | www.38200g.com | www.930210.com | www.599049.com | yz01.cc | www.p30226.com | www.44118m.com | www.314005.com | 4556z.com | www.z9163.com | www.js338.cn | 62222r.com | 2381.com | www.1343.com | www.zcwf7.com | js8028.com | www.55574.vip | www.6687c.com | www.444086.com | 33111122.com | www.749888.com | www.77802z.com | 1294m.com | ss5144.com | www.6661ylg.com | www.c2656.com | 9101908.com | www.77537w.com | www.5856872.com | 3169h.com | 131v.net | www.89599b.com | www.591029.com | 55967y.com | www.hg281.com | www.2408b.com | 8722nnnn.com | www.9996ff.com | www.3846ee.com | hrbbdyy.com | 55p88.cc | www.00772f.com | www.449810.com | 8569844.com | www.yt7488.com | www.39500p.com | p82365.com | www.25025.cc | www.68cc.com | feicai0954.com | www.80852.com | www.285628.com | 16690033.com | 866666z.com | www.9464003.com | uc01.cc | 50128a.com | www.32031o.com | 444000lll.com | 23233f.com | www.820568.com | 0156742.com | 1654jj.com | www.5446s.com | 62033.com | www.6000bjl.com | www.55676w.com | cai88.cc | www.77077.com | www.0194002.com | 444000rrr.com | www.58777g.com | www.hg09a.com | 3559dddd.com | www.pj6698.com | www.880085.com | x21148.com | www.0686888.com | www.39957g.com | blr5544.com | www.58777d.com | www.55220.com | 33382dd.com | www.cc1916.com | www.909935.com | p45638.com | www.ag06617.com | 937004.com | www.8520v.com | www.12136c.com | 38821155.com | www.85770f.com | www.ya2019g.com | 99bo.me | www.64566z.com | www.igcp9.com | w8381.com | www.b35nn.com | 30179955.com | www.63877n.com | www.879528.com | 78117711.com | www.813365.com | www.306061.com | 7196bb.com | www.933436.com | 08159v.com | www.m2229m.com | www.871203.com | 61321133.com | www.a.pj1308.com | 9964i.com | www.746128.com | www.c1353.com | man153.com | www.80188m.com | 7744vvv.com | www.0040i.com | www.cb2988.com | 00kk8331.com | www.469703.com | 0906kk.com | www.hggj2288.com | www.818897.com | 2767y.com | www.42070014.com | 585886.com | www.hg8056.com | www.243500.com | www.591107.app | www.yh9877.com | 93922b.com | www.0066xpj.net | 188qq333.com | www.18933i.com | www.924377.com | 7945zz.com | www.6768992.com | 12274477.com | www.38345j.com | 2934u.com | www.hy229.com | www.631918.com | 23233b.com | www.7714y.com | rf037.com | www.8313e.com | 1775xx.com | www.77333.com | www.321537.com | www.23426b.com | www.371e.cc | 3202b.com | www.886884.com | 4812b.com | www.915395.com | 4379k.com | www.585555.com | www.235953.com | www.303482.com | www.bet25365.com | www.fl96.com | 55nn8332.com | www.88266m.com | 28839q.com | www.55676z.com | 38238m.com | www.61msxfpt2.com | 11995002.com | www.hg7211m.com | www.275073.com | www.56520z.com | www.665771.com | www.hg1020.com | www.3479m.com | xldwh.com | www.99677b.com | 1229.org | www.hg98765.com | hhvip666.com | www.p94600.com | 4590t.com | www.390070.com | bbs500.com | www.4058ll.com | 7508u.com | www.55060o.com | ylzz1117.com | www.cn365z.com | 66185.com | www.pj88s.com | 1654dd.com | www.8473u.com | nnn40033.com | www.cr677.com | 3424app.com | www.pj888i.com | 992222o.com | www.jz3888.com | 1294c.com | www.8800ra8.com | 7894v.com | www.4996yx.com | 4812b.com | www.js2929.com | 01234nn.com | www.55676u.com | 32126d.net | www.21202i.com | 88851o.com | www.77803n.com | bb8888.com | www.7dzh.com | www.033033r.com | www.862422.com | www.54776.com | www.244747.com | www.656022.com | www.90305e.com | www.1116609.com | 1098528.com | www.8806132.com | s86811.com | www.b35hh.com | alpk88.com |