浣跨敤 watch 鍜?tail 鍛戒护鐩戣 Linux 涓婄殑娲诲姩，
浣跨敤 watch 鍜?tail 鍛戒护鐩戣 Linux 涓婄殑娲诲姩，
watch 鍜?tail 鍛戒护鍙互甯姪鐩戣 Linux 绯荤粺涓婄殑娲诲姩銆傛湰鏂囦粙缁嶄簡杩欎袱涓懡浠ょ殑涓€浜涙湁鐢ㄧ殑浣跨敤鏂规硶銆?/p>
watch 鍜?nbsp;tail 鍛戒护涓烘寔缁洃瑙?Linux 绯荤粺涓婄殑娲诲姩鎻愪緵浜嗕竴浜涙湁瓒ｇ殑閫夐」銆?/p>
涔熷氨鏄锛屼綘鍙互閫氳繃 watch 鏉ユ樉绀鸿皝宸茬櫥褰曪紝骞堕殢鐫€鐢ㄦ埛鐧诲綍鍜屾敞閿€涓嶆柇鏇存柊锛岃€屼笉鏄粎浠呮彁鍑洪棶棰樺苟鑾峰緱绛旀锛堜緥濡傝闂?nbsp;who 骞惰幏鍙栧綋鍓嶇櫥褰曠敤鎴风殑鍒楄〃锛夈€?/p>
浣跨敤 tail锛屼綘鍙互鏄剧ず鏂囦欢鐨勫簳閮ㄥ苟鍦ㄦ坊鍔犲唴瀹规椂鏌ョ湅鍐呭銆傝繖绉嶇洃鎺т竴鑸潪甯告湁鐢紝骞朵笖姣斿畾鏈熻繍琛屽懡浠ゆ墍闇€鐨勫伐浣滄洿灏戙€?/p>
浣跨敤 watch 鍛戒护
浣跨敤 watch 鐨勬渶绠€鍗曠ず渚嬩箣涓€鏄娇鐢ㄥ懡浠?nbsp;watch who銆備綘浼氱湅鍒颁竴涓垪琛紝鍏朵腑鏄剧ず浜嗚皝鐧诲綍浜嗭紝浠ュ強浠栦滑鐧诲綍鐨勬椂闂村拰鐧诲綍浣嶇疆銆傝娉ㄦ剰锛岄粯璁よ缃槸姣忎袱绉掓洿鏂颁竴娆℃樉绀猴紙宸︿笂瑙掞級锛屾棩鏈熷拰鏃堕棿锛堝彸涓婅锛夊皢鎸夎闂撮殧鑷鏇存柊銆傜敤鎴峰垪琛ㄥ皢闅忕潃鐢ㄦ埛鐧诲綍鍜屾敞閿€鑰屽闀垮拰缂╁皬銆?/p>
$ watch who
姝ゅ懡浠ゅ皢鏄剧ず濡備笅鎵€绀虹殑鐧诲綍鍒楄〃锛?/p>
Every 2.0s: who dragonfly: Thu Feb 27 10:52:00 2020
nemo pts/0 2020-02-27 08:07 (192.168.0.11)
shs pts/1 2020-02-27 10:58 (192.168.0.5)
浣犲彲浠ラ€氳繃娣诲姞 -n 閫夐」锛堜緥濡?nbsp;-n 10锛夋潵淇敼鏇存柊闂寸殑涓嶅悓绉掓暟锛屼互淇敼鏇存柊闂撮殧锛屼粠鑰岃幏鍙栬緝灏戠殑鏇存柊棰戠巼銆?/p>
$ watch -n 10 who
涓婅堪鍛戒护灏嗕互鏂扮殑闂撮殧鏄剧ず锛屽苟涓旀樉绀虹殑鏃堕棿鏇存柊棰戠巼杈冧綆锛屼粠鑰屼娇鏄剧ず鏃堕棿涓庢墍閫夐棿闅斾繚鎸佷竴鑷淬€?/p>
Every 10.0s: who dragonfly: Thu Feb 27 11:05:47 2020
nemo pts/0 2020-02-27 08:07 (192.168.0.11)
shs pts/1 2020-02-27 10:58 (192.168.0.5)
濡傛灉浣犲笇鏈涗粎鏌ョ湅鍛戒护鐨勮緭鍑猴紝鑰屼笉鏄爣棰橈紙鍓?2 琛岋級锛屽垯鍙互閫氳繃娣诲姞 -t锛堟棤鏍囬锛夐€夐」鏉ョ渷鐣ヨ繖浜涜銆?/p>
$ watch -t who
鐒跺悗锛屼綘鐨勫睆骞曞皢鏄剧ず濡備笅鎵€绀猴細
nemo pts/0 2020-02-27 08:07 (192.168.0.11)
shs pts/1 2020-02-27 10:58 (192.168.0.5)
濡傛灉姣忔杩愯鐩戣鐨勫懡浠ゆ椂锛岃緭鍑洪兘鏄浉鍚岀殑锛屽垯鍙湁鏍囬琛岋紙濡傛灉鏈渷鐣ワ級浼氭洿鏀广€傚叾浣欐樉绀虹殑淇℃伅灏嗕繚鎸佷笉鍙樸€?/p>
濡傛灉浣犲笇鏈?nbsp;watch 鍛戒护鍦ㄥ畠姝ｅ湪鐩戣鐨勫懡浠ょ殑杈撳嚭鍙戠敓鏇存柊鍚庣珛鍗抽€€鍑猴紝鍒欏彲浠ヤ娇鐢?nbsp;-g锛堝皢鍏惰涓?ldquo;绂诲紑”锛夐€夐」銆備緥濡傦紝濡傛灉浣犲彧鏄湪绛夊緟鍏朵粬浜哄紑濮嬬櫥褰曠郴缁燂紝鍒欏彲浠ラ€夋嫨鎵ц姝ゆ搷浣溿€?/p>
浣犺繕鍙互浣跨敤 -d锛?ruby>宸紓锛夐€夐」绐佸嚭鏄剧ず鏄剧ず杈撳嚭涓殑鏇存敼銆傜獊鍑烘樉绀哄彧浼氭寔缁竴涓棿闅旓紙榛樿涓?2 绉掞級锛屼絾鏈夊姪浜庡紩璧蜂綘瀵规洿鏂扮殑娉ㄦ剰銆?/p>
涓嬮潰鏄竴涓洿澶嶆潅鐨勭ず渚嬶紝璇ョず渚嬩娇鐢?nbsp;watch 鍛戒护鏄剧ず姝ｅ湪渚﹀惉杩炴帴鐨勬湇鍔″強鍏朵娇鐢ㄧ殑绔彛銆傝櫧鐒惰緭鍑轰笉澶彲鑳芥洿鏀癸紝浣嗗畠浼氭彁閱掍綘浠讳綍鏂版湇鍔℃鍦ㄥ惎鍔ㄦ垨鍏抽棴銆?/p>
$ watch 'sudo lsof -i -P -n | grep LISTEN'
鍊煎緱娉ㄦ剰鐨勬槸锛屾鍦ㄨ繍琛岀殑鍛戒护闇€瑕佺敤寮曞彿鎵╄捣鏉ワ紝浠ョ‘淇濅笉浼氬皢 watch 鍛戒护鐨勮緭鍑哄彂閫佸埌 grep 鍛戒护銆?/p>
浣跨敤 watch -h 鍛戒护灏嗕负浣犳彁渚涘懡浠ら€夐」鐨勫垪琛ㄣ€?/p>
$ watch -h
Usage:
watch [options] command
Options:
-b, --beep beep if command has a non-zero exit
-c, --color interpret ANSI color and style sequences
-d, --differences[=<permanent>]
highlight changes between updates
-e, --errexit exit if command has a non-zero exit
-g, --chgexit exit when output from command changes
-n, --interval <secs> seconds to wait between updates
-p, --precise attempt run command in precise intervals
-t, --no-title turn off header
-x, --exec pass command to exec instead of "sh -c"
-h, --help display this help and exit
-v, --version output version information and exit
浣跨敤 tail -f
tail -f 鍛戒护涓?nbsp;watch 鏈変竴浜涚浉鍚屼箣澶勩€傚畠涔熶細鍦ㄦ坊鍔犳枃浠舵椂鏄剧ず鏂囦欢鐨勫簳閮ㄥ拰鍏朵粬鍐呭銆備綘涓嶅繀涓€娆″張涓€娆″湴杩愯 tail 鍛戒护锛岃€屾槸杩愯涓€涓懡浠ゅ苟鑾峰緱鍙噸澶嶆洿鏂版樉绀鸿鍥剧殑缁撴灉銆備緥濡傦紝浣犲彲浠ヤ娇鐢ㄥ涓嬪懡浠ゆ煡鐪嬬郴缁熸棩蹇楋細
$ tail -f /var/log/syslog
鏌愪簺鏂囦欢锛堝 /var/log/wtmp锛変笉閫傚悎杩欑绫诲瀷鐨勫鐞嗭紝鍥犱负瀹冧滑鐨勬牸寮忎笉鏄櫘閫氭枃鏈枃浠讹紝浣嗘槸閫氳繃缁勫悎 watch 鍜?nbsp;tail锛屼綘鍙互鑾峰緱绫讳技鐨勭粨鏋滐紝濡備笅鎵€绀猴細
watch 'who /var/log/wtmp | tail -20'
鏃犺鏈夊灏戠敤鎴蜂粛澶勪簬鐧诲綍鐘舵€侊紝姝ゅ懡浠ら兘灏嗗彧鏄剧ず鏈€杩戠殑 5 娆＄櫥褰曘€傚鏋滃彂鐢熷叾浠栫櫥褰曪紝鏄剧ず缁撴灉灏嗘坊鍔犱竴琛岃褰曞苟鍒犻櫎椤惰璁板綍銆?/p>
Every 60.0s: who /var/log/wtmp | tail -5 dragonfly: Thu Feb 27 12:46:07 2020
shs pts/0 2020-02-27 08:07 (192.168.0.5)
nemo pts/1 2020-02-27 08:26 (192.168.0.5)
shs pts/1 2020-02-27 10:58 (192.168.0.5)
nemo pts/1 2020-02-27 11:34 (192.168.0.5)
dory pts/1 2020-02-27 12:14 (192.168.0.5)
瀵逛綘鏈夋椂鍙兘鎯宠鐩戣鐨勪俊鎭紝鏃犺鐩戣杩涚▼銆佺櫥褰曞悕杩樻槸绯荤粺璧勬簮锛?code>watch 鍜?nbsp;tail -f 鍛戒护閮藉彲浠ユ彁渚涜嚜鍔ㄦ洿鏂拌鍥撅紝浠庤€屼娇鐩戣浠诲姟鍙樺緱鏇村姞瀹规槗銆?/p>
via: https://www.networkworld.com/article/3529891/watching-activity-on-linux-with-watch-and-tail-commands.html
浣滆€咃細Sandra Henry-Stocker 閫夐锛?a href="https://github.com/lujun9972">lujun9972 璇戣€咃細Starryi 鏍″锛?a href="https://github.com/wxy">wxy
鏈枃鐢?nbsp;LCTT 鍘熷垱缂栬瘧锛?a href="https://linux.cn/">Linux涓浗 鑽ｈ獕鎺ㄥ嚭
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