From b205c2c28f35f4379fbe49e4768963c6fb2f8e79 Mon Sep 17 00:00:00 2001
From: flykhan <liubo666666@outlook.com>
Date: Mon, 14 Aug 2023 20:13:50 +0800
Subject: [PATCH] =?UTF-8?q?shell=20=E4=BD=9C=E4=B8=9A?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 day1/homework/h1.sh |  6 ++++++
 day1/homework/h2.sh | 11 +++++++++++
 day1/homework/h3.sh | 13 +++++++++++++
 day1/homework/h4.sh | 13 +++++++++++++
 day1/homework/h5.sh | 14 ++++++++++++++
 day1/homework/h6.sh | 11 +++++++++++
 day1/homework/h7.sh | 14 ++++++++++++++
 day1/homework/h8.sh | 24 ++++++++++++++++++++++++
 8 files changed, 106 insertions(+)
 create mode 100644 day1/homework/h1.sh
 create mode 100644 day1/homework/h2.sh
 create mode 100644 day1/homework/h3.sh
 create mode 100644 day1/homework/h4.sh
 create mode 100644 day1/homework/h5.sh
 create mode 100644 day1/homework/h6.sh
 create mode 100644 day1/homework/h7.sh
 create mode 100644 day1/homework/h8.sh

diff --git a/day1/homework/h1.sh b/day1/homework/h1.sh
new file mode 100644
index 0000000..2c29a38
--- /dev/null
+++ b/day1/homework/h1.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+# 编写一个Shell脚本，输出当前日期和时间。
+# 【要求】按 “xxxx年xx月xx日 xx时xx分xx秒” 格式输出
+
+echo `date +"%Y年%m月%d日 %H时%M分%S秒"`
\ No newline at end of file
diff --git a/day1/homework/h2.sh b/day1/homework/h2.sh
new file mode 100644
index 0000000..29069a1
--- /dev/null
+++ b/day1/homework/h2.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# 编写一个Shell脚本，计算1到100之间所有3倍数的整数和svi 
+
+declare -i svi=0
+for (( i=1;i<=100;i++ )); do
+    if (( i%3==0 )); then
+        svi+=i
+    fi
+done
+echo "svi="$svi
\ No newline at end of file
diff --git a/day1/homework/h3.sh b/day1/homework/h3.sh
new file mode 100644
index 0000000..041c807
--- /dev/null
+++ b/day1/homework/h3.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# 编写一个Shell脚本，接受一个文件名作为参数，并统计该文件中的行数、单词数和字符数
+# 【提示】wc 统计命令
+
+if [ -e $1 ] && [ -f $1 ]; then
+    echo "文件名：$1"
+    echo "行数：`wc -l $1 | awk '{print $1}'`"
+    echo "单词数：`wc -w $1 | awk '{print $1}'`"
+    echo "字符数：`wc -c $1 | awk '{print $1}'`"
+else
+    echo "文件不存在或者不是一个文件"
+fi
\ No newline at end of file
diff --git a/day1/homework/h4.sh b/day1/homework/h4.sh
new file mode 100644
index 0000000..e92dd0b
--- /dev/null
+++ b/day1/homework/h4.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# 编写一个Shell脚本，接受一个目录名作为参数，并列出该目录下的所有文件和子目录，并人性化显示文件的大小
+
+if [ -d $1 ]; then
+    echo "目录名：$1"
+    echo "文件列表："
+    # 也可以直接写成 ls -lh $1
+    output=`ls -lh $1`
+    echo "$output"
+else
+    echo "目录不存在"
+fi
\ No newline at end of file
diff --git a/day1/homework/h5.sh b/day1/homework/h5.sh
new file mode 100644
index 0000000..cc622bd
--- /dev/null
+++ b/day1/homework/h5.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# 编写一个Shell脚本，接受一个数字作为参数，并判断该数字是奇数还是偶数。
+
+if [ $# -ne 1 ]; then
+    echo "参数个数不正确"
+    exit 1
+else
+    if (( $1%2==0)); then
+        echo "$1 是偶数"
+    else
+        echo "$1 是奇数"
+    fi
+fi
\ No newline at end of file
diff --git a/day1/homework/h6.sh b/day1/homework/h6.sh
new file mode 100644
index 0000000..928ed22
--- /dev/null
+++ b/day1/homework/h6.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# 编写一个Shell脚本，接受一个字符串作为参数，并将该字符串逆序输出。
+# 【提示】 echo "abc"|rev
+
+if [ $# -ne 1 ]; then
+    echo "请提供一个字符串作为参数"
+    exit 1
+fi
+
+echo "$1"|rev
diff --git a/day1/homework/h7.sh b/day1/homework/h7.sh
new file mode 100644
index 0000000..fbeaeb0
--- /dev/null
+++ b/day1/homework/h7.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# 编写一个Shell脚本，接受一个文件路径作为参数，并检查该文件是否存在。如果存在，则输出 "文件名和文件大小"，否则输出 "File does not exist."
+
+# 方法一
+if [ -e $1 ]; then
+    output=`ls -lh $1 | awk '{print $5}'`
+    echo "文件名: $1, 文件大小: $output"
+else
+    echo "File does not exist."
+fi
+
+# 方法二
+[ -e $1 ] && echo "文件名: $1, 文件大小: `ls -lh $1 | awk '{print $5}'`" || echo "File does not exist."    
\ No newline at end of file
diff --git a/day1/homework/h8.sh b/day1/homework/h8.sh
new file mode 100644
index 0000000..abe7bba
--- /dev/null
+++ b/day1/homework/h8.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+
+# 编写一个Shell脚本，接受一个目录名作为参数，将目录中所有文件打包成xx.tar.bz2到它的父级目录，然后再删除该目录及其所有子目录和文件。
+
+if [ $# -ne 1 ]; then
+    echo "请提供目录参数"
+    exit 1
+fi
+
+dir=$1
+# 获取父级目录
+father_dir=`dirname $dir`
+# 获取目录名
+dir_name=`basename $dir`
+# 打包目录中所有文件
+tar -jcvf $father_dir/$dir_name.tar.bz2 $dir
+# 判断是否打包成功
+if [ $? -eq 0 ];then
+    # 删除目录
+    rm -rf $dir
+    echo "已删除目录 $dir"
+else
+    echo "打包失败"
+fi