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Crontab -l grep ntpdate

WebMar 13, 2015 · Past that I would just do a cd /etc ; grep ntpdate * -R and cd /var/spool/cron ; grep ntpdate * -R. Figure out the purpose of each matching file. – Zoredache Mar 12, 2015 at 17:52 @Zoredache thank you - /var/spool/cron/crontabs/root had the line containing the ntpdate cron job! If you'd like to enter that as an answer I will mark it correct WebDec 29, 2015 · What I believe you were originally thinking of was the manual NTP command ntpdate. ntpdate simply synchronizes time with a remote timeserver a single time. And, sure, you could run this command in cron as frequently as you want.

grep - Find and Update cron entry, via script - Unix

Webcrontab 是用来让使用者在固定时间或固定间隔执行程序之用,换句话说,也就是类似使用者的时程表。 -u user 是指设定指定 user 的时程表,这个前提是你必须要有其权限 (比如说是 root)才能够指定他人的时程表。 如果不使用 -u user 的话,就是表示设定自己的时程表。 参数说明 : -e : 执行文字编辑器来设定时程表,内定的文字编辑器是 VI,如果你想用别的 … WebFeb 14, 2013 · Probably the ntp service is running, that's why ntpdate can't open the socket (port 123 UDP) and connect to ntp server. Try from command line: sudo service ntp stop sudo ntpdate -s time.nist.gov sudo service ntp start If you want to put this in /etc/rc.local use the following: liberty in italia https://mobecorporation.com

[SOLVED] Cronjob fails for ntpdate -u, yet runs from command …

WebFeb 13, 2013 · Besides recommending to stop the local time server (ntpd or timesyncd), then ntpdate -bs server or ntpd -gq, and after that starting again the time server to keep the … Web##修改yum源,关闭selinux,关闭防火墙,关闭不必要的开机服务,添加用户,设置默认字符集UTF8 ##时间同步,设置超时时间、文件打开数、历史指令,内核优化,ssh优化,隐藏系统版本号,锁定重要文件 WebMar 8, 2024 · Embedded poky linux, no ntpdateavailable. It looks like none of the following commands is suitable: # date -s "$(curl -s --head http://google.com grep '^Date:' cut -d' ' -f 3-)" date: invalid date '08 Mar 2024 13:22:34 GMT' # date -s "$(curl -s --head http://google.com grep '^Date:' cut -d' ' -f 3-6)" liberty in hindi meaning

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Category:[SOLVED] Cronjob fails for ntpdate -u, yet runs from command …

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Crontab -l grep ntpdate

Crontab Explained in Linux [With Examples] - Linux …

WebJan 20, 2024 · crontab与ntpupdate设置服务器时间同步 /usr/sbin/ntpdate time-a.nist.gov s2m.time.edu.cn ntp.sjtu.edu.cn 首先使用 ntpdate 对时间进行网络更新(同步),可以 … WebCRONTAB (5) CRONTAB (5) NAME crontab - tables for driving cron DESCRIPTION A crontab file contains instructions to the cron (8) daemon of the general form: ``run this …

Crontab -l grep ntpdate

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WebJun 17, 2024 · I found that the best way to have a script update cron entries is to direct them to a separate file and have cron feed off of that. With the example I provided in the question, I ended up doing the following: WebAug 8, 2024 · Firstly you need to check if ntpdate package is installed currently. issue the following command: rpm -qa grep ntpdate outputs: [root@devops /]# rpm -qa grep ntpdate ntpdate-4.2.6p5-18.el7.centos.x86_64 If it is not installed, running the below “ yum install ” command to install it,type: yum install ntpdate outputs:

WebJun 16, 2024 · I found that the best way to have a script update cron entries is to direct them to a separate file and have cron feed off of that. With the example I provided in the … Web定时器crontab crontab的简介. 在Linux中,周期性的执行任务一般由cron这个守护进程来处理,它是一个linux下的定时任务执行工具,可以在无需人工干预的情况下运行作业。 [ps -ef grep cron] cron读取一个或多个配置文件,这些配置文件中包含了命令行及其调用时间。

WebApr 15, 2024 · 为你推荐; 近期热门; 最新消息; 热门分类. 心理测试; 十二生肖; 看相大全 WebApr 11, 2024 · 编写思路. 1.手动执行命令,然后保留执行成功的结果。. 2.编写脚本 脚本需要统一路径/scripts 脚本内容复制执行成功的命令(减少每个环节出错几率) 脚本内容尽可能的优化, 使用一些变量或使用简单的判断语句 脚本执行的输出信息可以重定向至其他位置保留或 ...

WebModifying a crontab: crontab -e Displaying a crontab: crontab -l Removing all crontab entries: crontab -r. A crontab file contains a line for every planned task. The rule always starts with the definition of the scheduled execution time. ... 04 11 * * 3 /usr/sbin/ntpdate pool.ntp.org 2>&1 >/dev/null. The rule above defines that once a week, on ...

http://crontab.org/ liberty injector pumpWebntpdate-550 多个 Linux 命令,内容包含 Linux 命令手册、详解、学习,值得收藏的 Linux 命令速查手册。 liberty ingleseWebMay 17, 2009 · To remove it from the crontab whatever its current schedule: ( crontab -l grep -v -F "$croncmd" ) crontab - Notes: grep -F matches the string literally, as we do … liberty inglesWebJul 12, 2024 · #crontab -e #00 1 * * * /usr/sbin/ntpdate 0.ca.pool.ntp.org To automatically synchronize on Linux boot, use the command: #crontab -e #@reboot /usr/sbin/ntpdate … liberty ingles scWeb3.3.2 Crontab files. A crontab file contains instructions to the cron daemon of the general form: “run this command at this time on this date”. Each user has their own crontab, and … liberty initiative fundWebJul 25, 2024 · cd /var/spool/cron/crontabs grep 'search string' * This command (as root) will tell you what user's crontab has the string. And if it exists. You would do this if if you are … liberty in jesus ministries memphis tnWebGenerally, you use grep like this: egrep "word" filename egrep -r "word" directory/ egrep -r "word" * You can grep the output of crontab -l like this: crontab -l egrep "word" Other notes: the .*word.* is unnecessary, as word will match. It should be faster (greedy matching) mcgregor real estate wichita falls