比man更强大的命令行工具cheat

经常使用命令行，比如curl来测试界面响应时间，foriin{1..10};docurl-o/dev/null-s-w》$i|time_namelookup:%{time_namelookup}|time_connect:%{time_connect}|time_starttransfer:%{time_starttransfer}|time_total:%{time_total}""http://httpbin.org/ip";done1|time_namelookup:0.016000|time_connect:0.016000|time_starttransfer:0.125000|time_total:0.1410002|time_namelookup:0.016000|time_connect:0.016000|time_starttransfer:0.094000|time_total:0.1090003|time_namelookup:0.016000|time_connect:0.031000|time_starttransfer:0.109000|time_total:0.1090004|time_namelookup:0.015000|time_connect:0.031000|time_starttransfer:0.109000|time_total:0.1090005|time_namelookup:0.031000|time_connect:0.031000|time_starttransfer:0.109000|time_total:0.1090006|time_namelookup:0.016000|time_connect:0.016000|time_starttransfer:0.094000|time_total:0.1090007|time_namelookup:0.016000|time_connect:0.016000|time_starttransfer:0.125000|提姆e_total:0.1250008|time_namelookup:0.000001|time_connect:0.016000|time_starttransfer:0.141000|time_total:0.1410009|time_namelookup:0.015000|time_connect:0.015000|time_starttransfer:0.093000|time_total:0.10900010|time_namelookup:0.000001|time_connect:0.015000|time_starttransfer:0.109000|time_total:0.125000奈何命令行参数太太多了，记不住怎么办？这时候你需要一个男人，就是男人man#mancurlcurl(1)CurlManualcurl(1)NAMEcurl-transferaURLSYNOPSIScurl[options][URL...]DESCRIPTIONcurlisatooltotransferdatafromortoaserver,usingoneofthesupportedprotocols(DICT,FILE,FTP,FTPS,GOPHER,HTTP,HTTPS,IMAP,IMAPS,LDAP,LDAPS,POP3,POP3S,RTMP,RTSP,SCP,SFTP,SMTP,SMTPS,TELNETandTFTP).Thecommandisdesignedtoworkwithoutuserinteraction.curloffersabusloadofusefultrickslikeproxysupport,userauthentication,FTPupload,HTTPpost,SSLconnections,cookies,filetransferresume,Metalink,andmore.Asyouwillseebelow,thenumberoffeatureswillmakeyourheadspin!curlispoweredbylibcurlforalltransfer-relatedfeatures.Seelibcurl(3)fordetails.URL的URL语法依赖于协议。你会在RFC3986中找到详细的描述。你可以通过在大括号中写入部分集来指定多个URL或URL的部分：http://site.{one,two,three}.com或者你可以通过使用[]asin:ftp://ftp.numericals.com/file[1-100].txtftp://ftp.numericals.com/file[001-100].txt(withleadingzeros)ftp://ftp.letters.com/file[a-z].txt人确实很坚强，给出了很多提示，但我真的不想要。.还是不知道怎么用。相信大家在技术文章中经常会看到TL;DR，也就是TooLong；没读过。太长的话mancurl的内容太长了，就不看了。这个就是比较强的mantldr，它是一个命令行工具，可以直接使用npminstall-gtldr安装。tldr[root@VM_0_14_centos~]#npminstall-gtldr/usr/local/n/versions/node/11.4.0/bin/tldr->/usr/local/n/versions/node/11.4.0/lib/node_modules/tldr/bin/tldr+tldr@3.2.7added113packagesfrom103contributorsin60.759s╭────────────────────────────────────────────────────────────────────────╮│││npm可用的新次要版本！6.4.1→6.9.0││变更日志：https://github。com/npm/cli/releases/tag/v6.9.0││Runnpminstall-gnpmtoupdate!│││╰────────────────────────────────────────────────────────────────────────╯安装后，让我们看看如何自己使用tldr。$tldrtldrtldrSimplifiedmanpages.Moreinformation:.-Gettypicalusagesofacommand(hint:thisishowyougothere!):tldrcommand-Showthetartldrpageforlinux:tldr-plinuxtar-Gethelpforagitsubcommand:tldrgitcheckout小试牛刀下$tldr-plinuxtartarArchivingutility.Oftencombinedwithacompressionmethod,suchasgziporbzip.Moreinformation:.-Createanarchivefromfiles:tar-cftarget.tarfile1file2file3-创建压缩压缩文件：tar-czftarget.tar.gzfile1file2file3-在目标目录中提取压缩文件：tar-xfsource.tar-C目录-在当前目录中提取压缩压缩文件：tar-xzfsource.tar.gz-在当前目录中提取压缩压缩文件：tar-xjfsource.tar.bz2-创建压缩文件，使用压缩文件后缀确定压缩程序：tar-caftarget..xzfile1file2file3-Listthecontentsofatarfile:tar-tvfsource.tar-Extractfilesmatchingapattern:tar-xfsource.tar--wildcards"*.html"嗯，很简单，直接给出tar需要的参数，再来看curlλtldrcurlcurlTransfersdatafromortoaserver.Supports,includingmostHTTPtoaserver.SupportsFTP和POP3.-将URL的内容下载到文件：curlhttp://example.com-ofilename-下载文件，将输出保存在URL指示的文件名下：curl-Ohttp://example.com/filename-下载文件，遵循[L]位置重定向，并自动[C]继续（恢复）上一个文件传输:curl-O-L-C-http://example.com/filename-Sendform-encodeddata(POSTrequestoftypeapplication/x-www-form-urlencoded):curl-d'name=bob'http://example.com/form-Sendarequestwithanextraheader,使用自定义HTTP方法：curl-H'X-My-Header:123'-XPUThttp://example.com-以JSON格式发送数据，指定适当的内容类型标头：curl-d'{"name":"bob"}'-H'Content-Type:application/json'http://example.com/users/1234-Passausernameandpasswordforserverauthentication:curl-umyusername:mypasswordhttp://example.com-Passclientcertificateandkeyforaresource,skippingcertificatevalidation:curl--certclient.pem--keykey.pem--insecurehttps://example.com这个男人果然更坚强，经常用的curl命令都包了，我喜欢安装的命令除了内置命令外，还可以[root@VM_0_14_centos~]#tldrpythonpythonPython语言解释器。更多信息：https://www.python.org.-CallaPythoninteractiveshell(REPL):python-ExecutescriptinagivenPythonfile:pythonscript.py-Executescriptaspartofaninteractiveshell:python-iscript.py-ExecuteaPythonexpression:python-c"expression"-Runlibrarymoduleasascript(terminatesoptionlist):python-mmodulearguments-InteractivelydebugaPythonscript:python-mpdbscript.py除了node还有其他版本https://github.com/tldr-pages/tldr如Python，直接pipinstalltldr安装。如果不想安装tldr，也可以直接使用网页在线查看https://tldr.sh/有了tldr，妈妈再也不用担心我记不住命令行参数了。有比tldr更强壮的男人吗？可以，比如cheathttps://github.com/cheat/cheat，直接使用pipinstallcheat安装。cheat看看cheat怎么用吧$cheatcheat#Toseexampleusageofaprogram:cheat#Toeditacheatsheetcheat-e#Tolistavailablecheatsheetscheat-l#Tosearchavailablecheatsheetscheat-s#Togetthecurrent`ch??eat'versioncheat-v试试curl$cheatcurl#Downloadasinglefilecurlhttp://path.to.the/file#Downloadafileandspecifyanewfilenamecurlhttp://example.com/file.zip-onew_file.zip#Downloadmultiplefilescurl-OURLofFirstFile-OURLofSecondFile#Downloadallsequentiallynumberedfiles(1-24)curlhttp://example.com/pic[1-24.jpg#下载文件并通过HTTPAuthenticationcurl-uusername:passwordURL#DownloadafilewithaProxycurl-xproxysever.server.com:PORThttp://addressiwantto.access#DownloadafilefromFTPcurl-uusername:password-Oftp://example.com/pub/file.zip#GetanFTPdirectorylistingcurlftp://username:password@example.com#Resumeapreviouslyfaileddownloadcurl-C--opartial_file.ziphttp://example.com/file.zip#FetchonlytheHTTPheadersfromaresponsecurl-Ihttp://example.com#FetchyourexternalIPandnetworkinfoasJSONcurlhttp://ifconfig.me/all/json#Limittherateofadownloadcurl--limit-rate1000B-Ohttp://path.to.the/file#GetyourglobalIPcurlhttpbin.org/ip#GetonlytheHTTPstatuscodecurl-o/dev/null-w'%{http_code}'-s-IURL比tldr更详细，如果你不想安装可以直接使用curlcht.sh[root@VM_0_14_centos~]#curlcht.sh/curl#Downloadasinglefilecurlhttp://path.to.the/file#Downloadafileandspecifyanewfilenamecurlhttp://example.com/file.zip-onew_file.zip#Downloadmultiplefilescurl-OURLofFirstFile-OURLofSecondFile#Downloadallsequentiallynumberedfiles(1-24)curlhttp://example.com/pic[1-24].jpg#Downloadafileandfollowredirectscurl-Lhttp://example.com/file#DownloadafileandpassHTTPAuthenticationcurl-uusername:passwordURL#DownloadafilewithaProxycurl-xproxysever.server.com:PORThttp://addressiwantto.access#从FTP下载文件curl-uusername:password-Oftp://example.com/pub/file.zip#GetanFTPdirectorylistingcurlftp://用户名：password@example.com#Resumeapreviouslyfaileddownloadcurl-C--opartial_file.ziphttp://example.com/file.zip#FetchonlytheHTTPheadersfromaresponsecurl-Ihttp://example.com#FetchyourexternalIPandnetworkinfoasJSONcurlhttp://ifconfig.me/all/json#Limittherateofadownloadcurl--limit-rate1000B-Ohttp://path.to.the/file#POSTtoaformcurl-F"name=user"-F"password=test"http://example.com#POSTJSONDatacurl-H"Content-Type:application/json"-XPOST-d'{"用户":"bob","pass":"123"}'http://example.com#POSTdatafromthestandardin/sharedataonsprunge.uscurl-F'sprunge=<-'sprunge.us看Python的requests怎么用[root@VM_0_14_centos~]#curlcheat.sh/python/requests#python-requests:LimitNumberofRedirectsFollowed##YouhavetocreateSession(http://www.python-#requests.org/en/latest/api/requests.Session)objectandset#max_redirectsvariableto3session=requests.Session()session.max_redirects=3session.get(url)#TooManyRedirectsexceptionwillberasedifarequestsexceeds#maximumnumberofredirects.##Re后期githubissuediscussingwhyyoucannotsetmax_redirectsper#requesthttps://github.com/kennethreitz/requests/issues/1300##[Alik][so/q/31552627][ccby-sa3.0]也有网页版http://cht.sh/curl有了tldr和cheat之后，再也不用背那么多命令行参数了。我经常使用cmder作为win下执行命令行的工具。如果你用的是win10，可以试试微软最新的Terminalhttps://github.com/microsoft/Terminal