[[emailprotected]~]#bc
按Q键退出
ls:例文件
mv
rm 删除文件
mkdir:创建目录
rmdir:删除目录
gzip
tar
cat:读文件(纯文本文件
cp:复制文件
mount
last:显示文件(数据文件例如:cd /var/spool/mail
ls –l 列出邮件文件 last显示文件的内容
[[emailprotected]~]#date
[[emailprotected]~]#date +%y/%m/%d
[[emailprotected]~]#date +%H:%M
I tried my best to calm down for a long time. Then I went to the platform to begin my prepared speech.
I felt my brain was blank when I was having my speech.
Before the election, I was confident for this position, but I still so nervous when I was in the platform. Thanks for preparing in advance; otherwise, I must be embarrassed. But the result was what I want. It’s a happy thing.
今天,我们班竞选班长了。`我成为了新的'班长。我很高兴,不过我现在仍然很紧张。竞选开始的时候,我好紧张,我都可以听到我的心怦怦跳了。我努力了很长一段时间才平静下来。然后我才走向讲台开始我已经准备好的演讲。在演讲的时候,我觉得我的大脑一片空白。在竞选之前,我对这一职位是很有信心,但当我站在讲台上时还是很紧张。幸好提前准备了;否则,我肯定很难堪。不过结果却是我想要的。这是一件值得开心的事
1.普通文件
文件的种类普通文件由ls –al显示出来的属性中,第一个属性为[-],例如[-rwxrwxrwx]。另外,根据文件的内容,又可分为:
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