吃一吃

淡淡的烟草味﹌ 2022-10-01 14:57 147阅读 0赞

1.给/dev/sdb2分区创建文件系统，类型为ext3  
mkfs -t ext3 /dev/sdb2![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk]  
2.列出磁盘分区信息  
fdisk -l![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 1]  
3.找到根目录下用户为root，权限为644的文件，修改权限为其他用户没有权限  
find / -user root -a -prem 644 -exec chomd 640 \{\} \\;![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 2]  
4./etc/passwd文件根据uid数字大小排序显示  
sort -n -t':' -k3 /etc/passwd![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 3]![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 4]  
5.显示磁盘使用率，以人类可读的形式  
df -h ![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 5]  
6.如何查看一个命令是shell内置命令还是外部命令  
type![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 6]  
7.找到/tmp目录下以.sh结尾的文件，改成源文件的名字加上.new结尾，每次修改之前要求确认  
find /tmp -name "\*.sh" -ok mv \{\} \{\} .new \\;![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 7]  
8.找到/dev目录下的全部字符设备文件，列出详细信息  
find /dev -type c -ls ![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 8]  
9.在当前目录下，创建/etc/passwd的符号链接文件，名为pass1  
ln -s /etc/passwd pass1![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 9] 10.显示系统内存使用情况，以人类可读形式  
free -h![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 10]  
脚本题（写出脚本）：  
1.求出1-1000内的奇数和和 偶数和？  
![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 11]![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 12]  
2.分别判断/dev目录下每个文件的文件类型，每种类型输出到一个文本文件，写入该文件名，比如字符设备文件存入char\_file.txt，记录dev下的字符设备文件的文件名，以此类推![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 13]![吃一吃][watermark_size_16_text_QDUxQ1RP5Y2a5a6i_color_FFFFFF_t_100_g_se_x_10_y_10_shadow_90_type_ZmFuZ3poZW5naGVpdGk 14]  
for i in `ls /dev`; do

filename="/dev/$i"  
if \[ -f $filename \]; then  
echo $i >> 111  
elif \[ -d $filename \]; then  
echo $i >> 222  
elif \[ -b $filename \]; then  
echo $i >> 333  
elif \[ -c $filename \]; then  
echo $i >> 444  
else  
echo $i >> 555  
fi  
done

转载于:https://blog.51cto.com/14259144/2375491

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