If you use Linux for regular work or developing and deploying software, you must have come across the grep command. In this explainer article, I'll tell you what is grep command and how does it work. What is grep? Grep is a command line utility in Unix and Linux systems. It is used...
whereis Command in Linux: Examples Thewhereiscommand works with different options and has many use-case examples. The following texts elaborates on the most important examples. Example 1: Find Command Location To locate a command, runwhereiswith the target command name. For instance, find thels...
The f command uses both -f and -F (follow) to monitor files. In a shell script, -f is associated with the specified filename. If you want to know about the -f command, make sure you read this guide entirely. This guide will help you know more about the -f command in Linux. Let...
The command syntax ofsosreportwill work on all kernel version, but is deprecated in RHEL 8+ kernels and will result in an "Redirecting to sos report" warning output. Thesos reportcommand is a tool that collects configuration details, system information and diagnostic information from a Red Hat ...
wakes up (executes) to handle periodic service requests when required. The daemon runs when the system boots from /etc/init.d or /etc/rc.d/init.d scripts. Thus, it can be started or stopped -- or restarted -- using theinitscript or with a command service crond start in Linux systems...
cURL Syntax The basic syntax of the curl command looks like this: cURL [options] [URL] Let's unpack each part of this command: command: All cURL commands begin with cURL to specify that you are making a cURL command. options: Options (also called flags) customize the behavior of the co...
(非build-in command)情况下可以查到 linux_man_wildcard/whatis/正则匹配/匹配以keyword开头的条目 使用apropos检索man手册,是利用手册的好方法,但有时候,apropos默认返回的结果太多,不利于定位 whatis &apropos &man 三者对比: # cxxu @ CxxuWin11 in ~/.config/cheat [19:07:35] C:16 ...
:selenium_firefox Firefox in headless mode driven by selenium. Usually takes more memory than other drivers, but sometimes can be useful. Tip: prepend a HEADLESS=false environment variable on the command line ($ HEADLESS=false ruby spider.rb) to launch an interactive browser in normal (not head...
If you recently made changes to your zshrc file and started encountering the “command not found” error, then there might be an issue with your configuration. You must review your changes and ensure there are no syntax errors or conflicting configurations. ...
Tags can be in two forms: Standard Go syntax, eg. kong:"required,name='foo'". Bare tags, eg. required:"" name:"foo" Both can coexist with standard Tag parsing. TagDescription cmd:"" If present, struct is a command. arg:"" If present, field is an argument. Required by default. ...