Linux运维第五课-----Linux

Posted 2020-12-04

一、把/data目录移动到/root目录里
[root @oldboyedu50 ~] # mv /tmp/data /root
mv==move

常出现的问题：
ls：cannot access/data:no such file or directory

二、进入/root目录 /data目录 删除oldboy.txt

要删除文件 ，先备份
[root @oldboyedu50 ~] #cd /root/data
[root @oldboyedu50 /data] #cp oldboy.txt oldboy.txt.lan

重命名
[root @oldboyedu50 /data] #mv oldboy.txt oldman.txt

强力删除
[root @oldboyedu50 /data] #rm -f /root/data/oldboy.txt
强力删除目录
[root @oldboyedu50 /data]# rm -fr /root/data/

三、find命令
找oldboy.txt文件
[rootn @oldboyedu50 /data]# find -n /root/data/oldboy.txt
找.txt文件
[[email protected] ~]# find /tmp -type f -name ‘*.txt‘
find+管道
[[email protected] ~]# find /root -type f -name ‘oldboy.txt‘|xargs ls
四、显示不包含“xx”命令
1、grep
[[email protected] afeng]# grep "28" /tmp/afeng/ygf.txt
[[email protected] afeng]# grep -v "28" /tmp/afeng/ygf.txt
2、head/tata
[[email protected] afeng]# head -8 /tmp/afeng/ygf.txt
[[email protected] afeng]# tail -3 /tmp/afeng/ygf.txt
3、awk
[[email protected] afeng]# awk ‘/28/‘ /tmp/afeng/ygf.txt
[[email protected] afeng]# awk ‘!/28/‘ /tmp/afeng/ygf.txt
4、sed
[[email protected] afeng]# sed -n ‘28p‘ /tmp/afeng/ygf.txt

[[email protected] afeng]# sed ‘/28/d‘ /tmp/afeng/ygf.txt
五、mkdir的新参数
-p 创建多层目录
六、显示固定行
1、head/tail
[[email protected] afeng]# head -20 /tmp/afeng/ygf.txt |tail -5
2、awk
[[email protected] afeng]# awk ‘NR==15,NR==20‘ /tmp/afeng/ygf.txt
3、sed
[[email protected] afeng]# sed -n ‘15,20p‘ /tmp/afeng/ygf.txt