怎么使用Xshell連接服務器并安裝JDK

[root@dwl?~]#?rz -bash:?rz:?未找到命令 [root@dwl?~]#?yum?install?-y?lrzsz 已加載插件：fastestmirror,?langpacks Determining?fastest?mirrors ?*?base:?mirrors.aliyun.com ?*?extras:?mirror.lzu.edu.cn ?*?updates:?mirrors.neusoft.edu.cn base?????????????????????????????????????????????????????????????????????????????????????????|?3.6?kB??00:00:00????? extras???????????????????????????????????????????????????????????????????????????????????????|?3.4?kB??00:00:00????? updates??????????????????????????????????????????????????????????????????????????????????????|?3.4?kB??00:00:00????? (1/4):?base/7/x86_64/group_gz????????????????????????????????????????????????????????????????|?166?kB??00:00:00????? (2/4):?extras/7/x86_64/primary_db????????????????????????????????????????????????????????????|?174?kB??00:00:01????? (3/4):?updates/7/x86_64/primary_db???????????????????????????????????????????????????????????|?5.0?MB??00:00:16????? (4/4):?base/7/x86_64/primary_db??????????????????????????????????????????????????????????????|?5.9?MB??00:00:20????? 正在解決依賴關系 --&gt;?正在檢查事務 ---&gt;?軟件包?lrzsz.x86_64.0.0.12.20-36.el7?將被?安裝 --&gt;?解決依賴關系完成  依賴關系解決  ==================================================================================================================== ?Package??????????????????架構??????????????????????版本??????????????????????????????源???????????????????????大小 ==================================================================================================================== 正在安裝: ?lrzsz???????? ?????????????x86_64???????????? ?????????????????????0.12.20-36.el7??????????? ??????????????????????????????base????????????? ??????????????????????????????????????78?k??? ????????????? 事務概要 ==================================================================================================================== 安裝??1?軟件包  總下載量：78?k 安裝大小：181?k Downloading?packages: 警告：/var/cache/yum/x86_64/7/base/packages/lrzsz-0.12.20-36.el7.x86_64.rpm:?頭V3?RSA/SHA256?Signature,?密鑰?ID?f4a80eb5:?NOKEY lrzsz-0.12.20-36.el7.x86_64.rpm?的公鑰尚未安裝 lrzsz-0.12.20-36.el7.x86_64.rpm??????????????????????????????????????????????????????????????|??78?kB??00:00:00????? 從?file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7?檢索密鑰 導入?GPG?key?0xF4A80EB5: ?用戶ID?????:?"CentOS-7?Key?(CentOS?7?Official?Signing?Key)?<security>" ?指紋???????:?6341?ab27?53d7?8a78?a7c2?7bb1?24c6?a8a7?f4a8?0eb5 ?軟件包?????:?centos-release-7-5.1804.el7.centos.x86_64?(@anaconda) ?來自???????:?/etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 Running?transaction?check Running?transaction?test Transaction?test?succeeded Running?transaction ??正在安裝????:?lrzsz-0.12.20-36.el7.x86_64?????????????????????????????????????????????????????????????????????1/1? ??驗證中??????:?lrzsz-0.12.20-36.el7.x86_64?????????????????????????????????????????????????????????????????????1/1?  已安裝: ??lrzsz.x86_64?0:0.12.20-36.el7?????????????????????????????????????????????????????????????????????????????????????  完畢！ [root@dwl?~]#</security>

sudo?tar?-vxf?jdk-8u181-linux-x64.tar.gz?-C/usr/local

[root@dwl?~]#?sudo?vim?/etc/profile

export?JAVA_HOME=/usr/local/jdk1.8.0_181  export?JRE_HOME=${JAVA_HOME}/jre  exportCLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib  export?PATH=${JAVA_HOME}/bin:$PATH

[root@dwl?~]#?source?/etc/profile [root@dwl?~]#?java?-version java?version?"1.8.0_181" Java(TM)?SE?Runtime?Environment?(build?1.8.0_181-b13) Java?HotSpot(TM)?64-Bit?Server?VM?(build?25.181-b13,?mixed?mode)