[[email protected] ~]# whoami
root
[[email protected] ~]# cat/etc/redhat-release
-bash: cat/etc/redhat-release: 沒有那個檔案或目錄
[[email protected] ~]# cat /etc/redhat-release
CentOS Linux release 7.5.1804 (Core)
[[email protected] ~]# uname -r
3.10.0-123.el7.x86_64
[[email protected] ~]# uname -m
x86_64
[

[email protected] ~]# yum install pcre pcre-devel -y
已載入外掛：fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.ustc.edu.cn
* extras: centos.ustc.edu.cn
* updates: centos.ustc.edu.cn
軟體包 pcre-8.32-17.el7.x86_64 已安裝並且是最新版本
軟體包 pcre-devel-8.32-17.el7.x86_64 已安裝並且是最新版本
無須任何處理
[

[email protected] ~]# rqm -qa pcre pcre-devel -y
-bash: rqm: 未找到命令
[[email protected] ~]# rpm -qa pcre pcre-devel -y
rpm: -y: 未知的選項
[[email protected] ~]# rpm -qa pcre pcre-devel
pcre-8.32-17.el7.x86_64
pcre-devel-8.32-17.el7.x86_64
[[email protected] ~]# cd /home/root
-bash: cd: /home/root: 沒有那個檔案或目錄
[

[email protected] ~]# cd /home
[[email protected] home]# ls
x1141603665
[[email protected] home]# mdkir holybear/
-bash: mdkir: 未找到命令
[[email protected] home]# mkdir holybear/
[[email protected] home]# ls
holybear x1141603665
[[email protected] home]# cd /home/holybear/
[[email protected] holybear]# mkdir tools
[[email protected] holybear]# cd tools/
[[email protected] tools]# wget -q http://nginx.org/download/nginx-1.6.3.tar.gz
[[email protected] tools]# ls
nginx-1.6.3.tar.gz
[[email protected] tools]# ls-lh
-bash: ls-lh: 未找到命令
[[email protected] tools]# ls -lh
總用量 788K
-rw-r–r– 1 root root 787K 4月 8 2015 nginx-1.6.3.tar.gz
[[email protected] tools]# tar xf nginx-1.6.3.tar.gz
[[email protected] tools]# cd nginx-1.6.3
[[email protected] nginx-1.6.3]# ls
auto CHANGES.ru configure html man src
CHANGES conf contrib LICENSE README