分享程序员开发的那些事...
更新时间：2022-08-13 07:39:47
一次创建多个目录
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[root@localhost tmp]# mkdir -p /user/{folder1,folder2,folder3}
[root@localhost tmp]# ls /user/
folder1 folder2 folder3 |
找出根目录下最大的10个目录，并按使用空间从大到小排序
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[root@localhost ~]# du -a ./ | sort -nr | head -n 10
132380 ./ 132316 ./source 69916 ./source/ZendGuard-5_5_0.tar.gz
18720 ./source/xunzai.com_mysql-5.0.18.tar.gz
13732 ./source/php-5.4.11.tar.gz
6144 ./source/phpMyAdmin-3.5.6-all-languages.tar.gz
5996 ./source/httpd-2.4.3.tar.gz
5044 ./source/libxml2-2.9.0.tar.gz
1984 ./source/pcre-8.32.zip
1960 ./source/freetype-2.4.10.tar.gz
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查看根目录下所有以“.”开头的文件
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[root@localhost ~]# find ./ -name ".[^.]*"
./.bash_logout ./.bash_profile ./.bashrc ./.cshrc ./.tcshrc ./.cache ./.config ./.bash_history ./.xauth96WqtE ./.mysql_history ./.mysql_history.TMP ./.viminfo |
修改文件或目录的时间戳
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[root@localhost ~]# stat person.txt
File: ?.erson.txt?
Size: 74 Blocks: 8 IO Block: 4096 regular file Device: 803h/2051d Inode: 145535279 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Context: unconfined_u:object_r:admin_home_t:s0 Access: 2016-04-02 05:05:10.370059171 -0700 Modify: 2016-04-02 05:04:40.854898705 -0700 Change: 2016-04-02 05:04:40.913901033 -0700 Birth: - [root@localhost ~]# touch -t 201604052135 person.txt #格式为YYMMDDhhmm
[root@localhost ~]# stat person.txt
File: ?.erson.txt?
Size: 74 Blocks: 8 IO Block: 4096 regular file Device: 803h/2051d Inode: 145535279 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Context: unconfined_u:object_r:admin_home_t:s0 Access: 2016-04-05 21:35:00.000000000 -0700 Modify: 2016-04-05 21:35:00.000000000 -0700 Change: 2016-04-05 06:36:16.304945163 -0700 Birth: - |
快速备份一个文件：cp filename{,.bak}
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[root@localhost ~]# ls
anaconda-ks.cfg person.txt source [root@localhost ~]# cp person.txt{,.bak}
[root@localhost ~]# ls
anaconda-ks.cfg person.txt person.txt.bak source
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进程运行到后台
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[root@localhost ~]# Ctrl + z
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进程运行到前台
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[root@localhost ~]# fg
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随机产生10位字符数的十六进制数
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[root@localhost ~]# openssl rand -hex 10
c3e805e84074211cc698 |
将文件解压到新的目录
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[root@localhost src]# ls
apr-1.4.6.tar.gz libmcrypt-2.5.8.tar.gz
apr-util-1.5.1.tar.gz libpng-1.5.14.tar.gz
autoconf-2.69.tar.gz libxml2-2.9.0.tar.gz
debug pcre-8.32.zip freetype-2.4.10.tar.gz php-5.4.11.tar.gz
gd-2.0.35.tar.gz phpMyAdmin-3.5.6-all-languages.tar.gz
httpd-2.4.3 xunzai.com_mysql-5.0.18.tar.gz
httpd-2.4.3.tar.gz ZendGuard-5_5_0.tar.gz
jpegsrc.v8b.tar.gz zlib-1.2.7.tar.gz
kernels [root@localhost src]# tar zxvf apr-1.4.6.tar.gz -C /tmp/tmp/
apr-1.4.6/ apr-1.4.6/shmem/ apr-1.4.6/shmem/win32/ ………… [root@localhost src]# ls /tmp/tmp/
apr-1.4.6 |
将所有文件名中含有”txt”的文件移入“/tmp/tmp”目录
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[root@localhost ~]# find -iname "*txt*" -exec mv -v {} /tmp/tmp/ \;
?./person.txt?.-> ?.tmp/tmp/person.txt?
?./person.txt.bak?.-> ?.tmp/tmp/person.txt.bak?
[root@localhost ~]# ls /tmp/tmp/
apr-1.4.6 person.txt person.txt.bak |
将任意一行开头为“#”的去除掉
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[root@localhost ~]# cat a.txt
This is the file #This is another file #This is the final file [root@localhost ~]# sed '2s/^#//' a.txt
This is the file This is another file #This is the final file |