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tail - è¾åºæ件çæ«å°¾é¨å

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tail [é项]... [æ件å表]...

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-c, --bytes=[+]NUM

è¾åºæå NUM 个åèï¼æèä½¿ç¨ -c +NUM è¾åºæ¯ä¸ªæ件ä»ç¬¬ NUM 个å- èå¼å§çæ°æ®

-f, --follow[={name|descriptor}]

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è¥æªç»å®é项åæ°ï¼åé»è®¤ä½¿ç¨ ’descriptor’

-F

å --follow=name --retry ç¸å

-n, --lines=[+]NUM

output the last NUM lines, instead of the last 10; or use -n +NUM to output starting with line NUM

--max-unchanged-stats=N

with --follow=name, reopen a FILE which has not

changed size after N (default 5) iterations to see if it has been unlinked or renamed (this is the usual case of rotated log files); with inotify, this option is rarely useful

--pid=PID

å -f åæ¶ä½¿ç¨æ¶ï¼å¨è¿ç¨å·ä¸º PID çè¿ç¨ç»æåç»æ¢æ§è¡

-q, --quiet, --silent

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--retry

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-s, --sleep-interval=N

å -f åæ¶ä½¿ç¨æ¶ï¼å¨ä¸¤æ¬¡è¿ä»£ä¹é´ç¡ç çº¦ N ç§ï¼é»è®¤ 1.0 ç§ï¼ï¼åæ ¸æ¯æ inotify ä¸ä½¿ç¨äº --pid=P æ¶ï¼æ¯ N ç§è³å°æ£æ¥ä¸æ¬¡è¿ç¨ P

-v, --verbose

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-z, --zero-terminated

以 NUL ä½ä¸ºè¡çåé符ï¼èéæ¢è¡ç¬¦

--help

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--version

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NUM åé¢å¯ä»¥å ä¸ä¹æ°åç¼ï¼b 512ãkB 1000ãK 1024ãMB 1000*1000ãM 1024*1024, GB 1000*1000*1000ãG 1024*1024*1024ï¼TãPãEãZãY 以æ¤ç±»æ¨ã ä¹å¯ä»¥ä½¿ç¨äºè¿å¶åç¼ï¼KiB=KãMiB=Mï¼ä»¥æ¤ç±»æ¨ã

With --follow (-f), tail defaults to following the file descriptor, which means that even if a tail’ed file is renamed, tail will continue to track its end. This default behavior is not desirable when you really want to track the actual name of the file, not the file descriptor (e.g., log rotation). Use --follow=name in that case. That causes tail to track the named file in a way that accommodates renaming, removal and creation.

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ç± Paul RubinãDavid MacKenzie å Jim Meyering ç¼åã

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GNU coreutils çå¨çº¿å¸®å©ï¼ <https://www.gnu.org/software/coreutils/>
请å <https://translationproject.org/team/zh_CN.html> æ¥åç¿»è¯é误ã

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Copyright © 2022 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
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head(1)

å®æ´æ档请è§ï¼<https://www.gnu.org/software/coreutils/tail>
æèå¨æ¬å°ä½¿ç¨ï¼ info '(coreutils) tail invocation'

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