WK5
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编写脚本 createuser.sh,实现如下功能:使用一个用户名做为参数,如果 指定参数的用户存在,就显示其存在,否则添加之;显示添加的用户的id号等信息
#!/bin/bash USERNAME=$1 if [ ! -n "$1" ] ; then echo "Input null" elif id $USERNAME &> /dev/null; then echo "$USERNAME is already exists" else useradd $USERNAME echo `getent passwd $USERNAME` fi
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编写生成脚本基本格式的脚本,包括作者,联系方式,版本,时间,描述等
[root@centos8 ~]# vim .vimrc autocmd BufNewFile *.sh exec ":call SetTitle()" func SetTitle() if expand("%:e") == 'sh' call setline(1,"#!/bin/bash") call setline(2,"#") call setline(3,"#*******************************************************") call setline(4,"#") call setline(5,"#FileName: ".expand("%")) call setline(6,"#Version: V1") call setline(7,"#Description: auto create file header") call setline(8,"#Author: root") call setline(9,"#QQ: 123456") call setline(10,"#Date: ".strftime("%Y-%m-%d")) call setline(11,"#Copyright (C): ".strftime("%Y")." All rights reserved") call setline(12,"#") call setline(13,"#*******************************************************") call setline(14,"") call setline(15,"") endif endfunc autocmd BufNewFile * normal G
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查找/etc目录下大于1M且类型为普通文件的所有文件
[root@centos8 ~]# find /etc/ -type f -a -size +1M /etc/selinux/targeted/policy/policy.31 /etc/udev/hwdb.bin
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打包/etc/目录下面所有conf结尾的文件,压缩包名称为当天的时间,并拷贝到/usr/local/src目录备份。
[root@centos8 ~]# find /etc/ -name "*.conf"|xargs tar -czf /usr/local/src/`date +%F`.tar.gz
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查找当前系统上没有属主或属组,且最近一个周内曾被访问过的文件或目录
[root@centos8 ~]# find /home \( -nouser -o -nogroup \) -a -atime -7
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查找/etc目录下至少有一类用户没有执行权限的文件
[root@centos8 ~]# find /data/scripts/ ! -perm -111