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Sed FAQ From: [email protected] Newsgroups: alt.comp.editors.batch,comp.editors,comp.answers,alt.answers,news.answers Subject: sed FAQ, version 015 Followup-To: poster Summary: Frequently Asked Questions about sed, the stream editor X-Disclaimer: Approval for *.answers is based on form, not content Archive-Name: editor-faq/sed Posting-Frequency: irregular Last-modified: 10 March 2003 Version: 015 URL: http://sed.

Tcpdump tcpdump -i eth0 -n port 38888 and dst host 172.16.1.1

《后端架构师技术图谱》 👍 👍 👍 推荐一个在线搜课程的神器，“课程

Cloc cloc . 541 text files. 476 unique files. 132 files ignored. github.com/AlDanial/cloc v 1.82 T=1.18 s (357.1 files/s, 117818.0 lines/s) ------------------------------------------------------------------------------- Language files blank comment code ------------------------------------------------------------------------------- Python 404 19223 25677 92837 JavaScript 1 47 109 253 reStructuredText 4 69 44 117 Fish Shell 1 11 13 50 Markdown 1 1 0 49 XML 5 0 0 30 C Shell 1 9 7 21 JSON 3 0 0 3 ------------------------------------------------------------------------------- SUM: 420 19360 25850 93360 -------------------------------------------------------------------------------

Create a VM with GenericCloud Image Installing software yum install -y cloud-utils cloud-localds genisoimage Create the Disk with NoCloud data on it touch cloud-config cat cloud-config.cfg #cloud-config users: - default password: passw0rd chpasswd: { expire: False } ssh_pwauth: True network: {config: disabled} cloud-localds cloud-config.

Kick a User Off a Linux System Check Logins who -u centos tty1 2021-05-07 02:15 00:03 1569 centos pts/0 2021-05-07 01:44 . 1460 (192.168.122.1) w 02:19:46 up 1:22, 2 users, load average: 0.

NTP 一、使用 ntpd 服务配置 step 1 配置 NTP cat /etc/ntp.conf driftfile /var/lib/ntp/drift keys /etc/ntp/keys restrict default kod nomodify notrap nopeer noquery restrict -6

Cron From Wikipedia: cron is the time-based job scheduler in Unix-like computer operating systems. cron enables users to schedule jobs (commands or shell scripts) to run periodically at certain times,

IPMITOOL Command help 这个可以在ipmitool命令行中获取命令行帮助。也可

netfilter/iptables 是 Linux 系统中一款非常优秀的防火墙工具，它功能强大、使用灵活、