From 1074dc5de462cc80e58d7997e5b6729f7096a7a3 Mon Sep 17 00:00:00 2001
From: lizepeng <1224060318@qq.com>
Date: Sun, 11 Sep 2022 11:44:49 +0800
Subject: [PATCH 01/11] 10215501417's commit

---
 lab1/10215501417.sh | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 lab1/10215501417.sh

diff --git a/lab1/10215501417.sh b/lab1/10215501417.sh
new file mode 100644
index 0000000..b22392a
--- /dev/null
+++ b/lab1/10215501417.sh
@@ -0,0 +1,67 @@
+#!/bin/bash
+
+#生成50000行包含字母与数字的文件
+#需要从urandom中读取字母与数字，共50000次循环，大概需要5-10min左右。
+for((i = 0; i < 50000; i++))
+do
+head -c 50 /dev/urandom | tr -dc A-Za-z0-9 >> RandFile;
+echo -e \ >> RandFile;
+done
+
+#按字母排序
+sort RandFile | uniq;      
+#按数字排序
+sort -n RandFile | uniq;
+#重定向到SortedFile1
+sort RandFile | uniq >> SortedFile1;
+#重定向到SortedFile2
+sort -n RandFile >> SortedFile2;
+
+#统计RandFile中 ab 出现的次数
+grep -o ab RandFile|wc -l;
+
+#git push到码园
+git init   #初始化
+git add .  #添加文件夹下所有文件
+git commit -m "lab1 first commit" #把添加的文件提交到远程版本库
+git remote add origin https://gitea.shuishan.net.cn/10215501417/csapp.git  #建立远程连接
+git push -u origin master #上传代码#!/bin/bash
+
+#生成50000行包含字母与数字的文件
+#需要从urandom中读取字母与数字，共50000次循环，大概需要5-10min左右。
+for((i = 0; i < 50000; i++))
+do
+head -c 50 /dev/urandom | tr -dc A-Za-z0-9 >> RandFile;
+echo -e \ >> RandFile;
+done
+
+#按字母排序
+sort RandFile | uniq;      
+#按数字排序
+sort -n RandFile | uniq;
+#重定向到SortedFile1
+sort RandFile | uniq >> SortedFile1;
+#重定向到SortedFile2
+sort -n RandFile >> SortedFile2;
+
+#统计RandFile中 ab 出现的次数
+grep -o ab RandFile|wc -l;
+
+#git push到码园
+git init   #初始化
+git add .  #添加文件夹下所有文件
+git commit -m "lab1 first commit" #把添加的文件提交到远程版本库
+git remote add origin https://gitea.shuishan.net.cn/10215501417/csapp.git  #建立远程连接
+git push -u origin master #上传代码
+
+#fork工作流：
+#首先 fork目标仓库到自己的远程仓库
+#再git clone到自己的仓库
+git clone https://gitea.shuishan.net.cn/10215501417/Computer-Systems-Labs.git
+#创建一个分支
+git checkout -b hw
+#将代码文件上传
+git add 10215501417.sh
+git commit -m "10215501417's cmommit"
+#然后再发起一个pr到目标仓库
+

From 7bd805043cf872f876a153c9b16d98fb76f8a500 Mon Sep 17 00:00:00 2001
From: lizepeng <1224060318@qq.com>
Date: Sun, 11 Sep 2022 11:54:02 +0800
Subject: [PATCH 02/11] 10215501417's commit

---
 lab1/10215501417.sh | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/lab1/10215501417.sh b/lab1/10215501417.sh
index b22392a..10d6392 100644
--- a/lab1/10215501417.sh
+++ b/lab1/10215501417.sh
@@ -25,33 +25,6 @@ git init   #初始化
 git add .  #添加文件夹下所有文件
 git commit -m "lab1 first commit" #把添加的文件提交到远程版本库
 git remote add origin https://gitea.shuishan.net.cn/10215501417/csapp.git  #建立远程连接
-git push -u origin master #上传代码#!/bin/bash
-
-#生成50000行包含字母与数字的文件
-#需要从urandom中读取字母与数字，共50000次循环，大概需要5-10min左右。
-for((i = 0; i < 50000; i++))
-do
-head -c 50 /dev/urandom | tr -dc A-Za-z0-9 >> RandFile;
-echo -e \ >> RandFile;
-done
-
-#按字母排序
-sort RandFile | uniq;      
-#按数字排序
-sort -n RandFile | uniq;
-#重定向到SortedFile1
-sort RandFile | uniq >> SortedFile1;
-#重定向到SortedFile2
-sort -n RandFile >> SortedFile2;
-
-#统计RandFile中 ab 出现的次数
-grep -o ab RandFile|wc -l;
-
-#git push到码园
-git init   #初始化
-git add .  #添加文件夹下所有文件
-git commit -m "lab1 first commit" #把添加的文件提交到远程版本库
-git remote add origin https://gitea.shuishan.net.cn/10215501417/csapp.git  #建立远程连接
 git push -u origin master #上传代码
 
 #fork工作流：

From ab03cf6d05b7c475e5351eadb0ca34b58161ca99 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8C=85=E4=BA=A6=E6=99=9F?= <10215501451@stu.ecnu.edu.cn>
Date: Sun, 11 Sep 2022 17:12:28 +0800
Subject: [PATCH 03/11] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6?=
 =?UTF-8?q?=E8=87=B3=20''?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 10215501451.md | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 10215501451.md

diff --git a/10215501451.md b/10215501451.md
new file mode 100644
index 0000000..104f684
--- /dev/null
+++ b/10215501451.md
@@ -0,0 +1,21 @@
+touch text1.txt
+
+for i in `seq 50000`;do echo $RANDOM | md5sum | cut -c 1-9 ;done >> text1.txt
+
+export LC_ALL=C
+
+sort text1.txt  | uniq
+
+sort -n text1.txt | uniq
+
+sort text1.txt  | uniq > letter.txt
+
+sort -n text1.txt | uniq >> number.txt
+
+
+
+echo -e "computer\ndata\nscience\nengineering\nscience\nengineeringc\ncomputer\ncomputer\necnu\ndata" > text2.txt
+
+grep computer text2.txt
+
+grep -c computer text2.txt
\ No newline at end of file

From e8e50305049115362aa507219a3c5bd4a3ea8f01 Mon Sep 17 00:00:00 2001
From: YifeiLong <longyifei1206@126.com>
Date: Sun, 11 Sep 2022 18:02:47 +0800
Subject: [PATCH 04/11] 10215501415

---
 lab1/10215501415.sh | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 lab1/10215501415.sh

diff --git a/lab1/10215501415.sh b/lab1/10215501415.sh
new file mode 100644
index 0000000..83893ef
--- /dev/null
+++ b/lab1/10215501415.sh
@@ -0,0 +1,15 @@
+#两个字符串文件均由python生成
+#按数字排序
+
+#覆盖写
+cat hw1.txt | sort | uniq -d > 1.txt
+cat hw1.txt | sort -n | uniq -d > 1.txt
+
+#追加写
+cat hw1.txt | sort | uniq -d >> 2.txt
+cat hw1.txt | sort -n | uniq -d >> 2.txt
+
+
+#找出指定字符串
+grep computer hw1-2.txt
+grep -c computer hw1-2.txt
\ No newline at end of file

From c173c2f1605579750d1c4853e7fe50f40aa39edc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=A8=E8=8C=9C=E9=9B=85?= <lily13817776083@163.com>
Date: Sun, 11 Sep 2022 20:26:30 +0800
Subject: [PATCH 05/11] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=20'lab1/10215501435.sh?=
 =?UTF-8?q?'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 lab1/10215501435.sh | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 lab1/10215501435.sh

diff --git a/lab1/10215501435.sh b/lab1/10215501435.sh
new file mode 100644
index 0000000..07be095
--- /dev/null
+++ b/lab1/10215501435.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+#生成50行随机字符串
+for i in {1..50}
+do
+         echo $RANDOM | md5sum | cut -c 1-9 >> random_50.txt
+done
+#将上述50行随机的字符串循环100次，得到5000行有规律的字符串
+times=1
+while((times<=100))
+do
+	head -n 50 random_50.txt >> random_5000.txt
+	times=`expr $times + 1`
+done
+#以覆盖写的方式，字母排序，输出unique行
+sort -u  random_5000.txt > alph.txt
+#以覆盖写的方式，数字排序，输出unique行
+sort -u -n random_5000.txt > number.txt
+#以追加写的方式，字母排序，输出unique行
+sort -u random_5000.txt >> alph.txt
+#以追加写的方式，数字排序，输出unique行
+sort -u -n random_5000.txt >> number.txt
+#已经生成一个含有60个Computer的letter文件
+grep -c "Computer" letter.txt 
\ No newline at end of file

From 2055189b70e8b72500d43c0f0232b4d41a1b0a7e Mon Sep 17 00:00:00 2001
From: Wu Mianzhi <10215501411@stu.ecnu.edu.cn>
Date: Mon, 12 Sep 2022 11:06:24 +0800
Subject: [PATCH 06/11] Add Homework Lab1

---
 lab1/10215501411.sh | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 lab1/10215501411.sh

diff --git a/lab1/10215501411.sh b/lab1/10215501411.sh
new file mode 100644
index 0000000..c78f8f0
--- /dev/null
+++ b/lab1/10215501411.sh
@@ -0,0 +1,57 @@
+SAMESTR="ThisIsTheSameString" #Same String for uniq 
+readonly SAMESTR
+
+##
+# Get random integar between 1 and 100
+##
+function getRandomName(){
+    rnd=`expr $RANDOM % 64 + 1`
+    return $rnd
+}
+
+##
+# Get random string, first parametar is length
+##
+function getRandomString(){
+    openssl rand -base64 $1
+}
+
+function generate(){
+    size=500
+    i=0
+    while(( $i < $size ))
+    do
+        getRandomName
+        length=$?
+        #echo "START"
+        if [[ $length -ge 1  && $length -le 25 ]] 
+        then
+            echo $SAMESTR
+        else
+            echo `getRandomString $length`
+        fi
+        let "i++"
+    done
+}
+
+function sortByASCII(){
+    generate | sort | uniq -u
+}
+
+function sortByNumeric(){
+    generate | sort --numeric-sort | uniq -u
+}
+
+echo "Overwrite lines:" > resultASCII #this line should not appear in output file
+sortByASCII > resultASCII
+echo "Append lines:" >> resultASCII #this line should appear in output file
+sortByASCII >> resultASCII
+
+echo "Overwrite lines:" > resultNumeric #this line should not appear in output file
+sortByNumeric > resultNumeric
+echo "Append lines:" >> resultNumeric #this line should appear in output file
+sortByNumeric >> resultNumeric
+
+echo "Number of same string in file:"
+generate > randomLines
+grep --only-matching $SAMESTR < randomLines | wc --lines
\ No newline at end of file

From 4d0315b0f711bcf62fee6d6472ce7ae1692acae4 Mon Sep 17 00:00:00 2001
From: 10215501435 <Lily13817776083@163.com>
Date: Mon, 12 Sep 2022 11:22:28 +0800
Subject: [PATCH 07/11] add test.sh

---
 lab1/test.sh | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 lab1/test.sh

diff --git a/lab1/test.sh b/lab1/test.sh
new file mode 100644
index 0000000..b1d57c2
--- /dev/null
+++ b/lab1/test.sh
@@ -0,0 +1 @@
+sort test.sh | uniq

From e903330dca17731fcc5e68751dd06701fb67c677 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=B4=AA=E8=B4=9D=E8=B4=9D?= <10215501418@stu.ecnu.edu.cn>
Date: Mon, 12 Sep 2022 15:57:59 +0800
Subject: [PATCH 08/11] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=20'10215501418.txt/.ke?=
 =?UTF-8?q?ep'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 10215501418.txt/.keep | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 10215501418.txt/.keep

diff --git a/10215501418.txt/.keep b/10215501418.txt/.keep
new file mode 100644
index 0000000..e69de29

From 8178347bab052089093562b4c95db3b969e77405 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=B4=AA=E8=B4=9D=E8=B4=9D?= <10215501418@stu.ecnu.edu.cn>
Date: Mon, 12 Sep 2022 16:02:45 +0800
Subject: [PATCH 09/11] =?UTF-8?q?=E5=88=A0=E9=99=A4=20'10215501418.txt'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 10215501418.txt/.keep | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 delete mode 100644 10215501418.txt/.keep

diff --git a/10215501418.txt/.keep b/10215501418.txt/.keep
deleted file mode 100644
index e69de29..0000000

From 370fe5aae4ab2915d5278b0d04f26691634f6bf7 Mon Sep 17 00:00:00 2001
From: 10215501418 <3012424413@qq.com>
Date: Mon, 12 Sep 2022 18:18:54 +0800
Subject: [PATCH 10/11] homework1

---
 lab1/10215501418.sh | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 lab1/10215501418.sh

diff --git a/lab1/10215501418.sh b/lab1/10215501418.sh
new file mode 100644
index 0000000..2b7ace5
--- /dev/null
+++ b/lab1/10215501418.sh
@@ -0,0 +1,10 @@
+python 1.py > 1.1.txt
+sort -d 1.1.txt > 1.2.txt --unique     
+sort --numeric-sort 1.1.txt > 1.2.txt --unique
+sort -d 1.1.txt >> 1.3.txt --unique
+sort --numeric-sort 1.1.txt >> 1.3.txt --unique
+
+
+python 2.py > 2.txt
+grep "computer" 2.txt
+grep -c "computer" 2.txt
\ No newline at end of file

From f8541e6056a95661b16b6b650f617e65a9c0eca9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=A8=E8=8C=9C=E9=9B=85?= <lily13817776083@163.com>
Date: Mon, 12 Sep 2022 18:39:34 +0800
Subject: [PATCH 11/11] =?UTF-8?q?=E5=88=A0=E9=99=A4=20'lab1/test.sh'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 lab1/test.sh | 1 -
 1 file changed, 1 deletion(-)
 delete mode 100644 lab1/test.sh

diff --git a/lab1/test.sh b/lab1/test.sh
deleted file mode 100644
index b1d57c2..0000000
--- a/lab1/test.sh
+++ /dev/null
@@ -1 +0,0 @@
-sort test.sh | uniq