Add assignment 2

Assignment1/.idea/aws.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="accountSettings">
+    <option name="activeRegion" value="us-east-1" />
+    <option name="recentlyUsedRegions">
+      <list>
+        <option value="us-east-1" />
+        <option value="us-east-2" />
+      </list>
+    </option>
+  </component>
+  <component name="connectionManager">
+    <option name="activeConnectionId" value="sso;us-east-1;https://view.awsapps.com/start" />
+  </component>
+</project>

Assignment2/.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

Assignment2/.idea/Assignment2.iml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module classpath="CMake" type="CPP_MODULE" version="4" />

Assignment2/.idea/aws.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="accountSettings">
+    <option name="activeRegion" value="us-east-1" />
+    <option name="recentlyUsedRegions">
+      <list>
+        <option value="us-east-1" />
+      </list>
+    </option>
+  </component>
+</project>

Assignment2/.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CMakeWorkspace" PROJECT_DIR="$PROJECT_DIR$" />
+</project>

Assignment2/.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/Assignment2.iml" filepath="$PROJECT_DIR$/.idea/Assignment2.iml" />
+    </modules>
+  </component>
+</project>

Assignment2/.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>

Assignment2/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.22)
+project(Assignment2 C)
+
+set(CMAKE_C_STANDARD 99)
+
+add_executable(Assignment2 main.c)

Assignment2/documentation/sample_execution.txt

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+(870665) Please input your shell command:
+onechild
+(870665)Hello, I am a parent process
+(870666)Hello, I am a child process
+(870665) Please input your shell command:
+addnumbers
+(870665)Please input number, (0) to terminate
+1
+(870665)Read  1
+(870665)Please input number, (0) to terminate
+(870667)The subtotal is: 1
+2
+(870665)Read  2
+(870665)Please input number, (0) to terminate
+(870667)The subtotal is: 3
+3
+(870665)Read  3
+(870665)Please input number, (0) to terminate
+(870667)The subtotal is: 6
+4
+(870665)Read  4
+(870665)Please input number, (0) to terminate
+(870667)The subtotal is: 10
+0
+(870665)Read  0
+(870667)The subtotal is: 10
+(870665)The sum is 10
+(870665) Please input your shell command:
+exec
+(870665) Please input exec subcommand
+ls
+;
+a.out  sample_run_1.txt  solution.c
+(870665) Please input your shell command:
+processtree
+Please input the integer
+3
+(870665)The value is 0
+(870671)The value is 4
+(870672)The value is 2
+(870676)The value is 3
+(870674)The value is 1
+(870673)The value is 6
+(870675)The value is 5
+(870677)The value is 7
+(870665) Please input your shell command:
+stop

Assignment2/documentation/sample_execution_2.txt

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+(870697) Please input your shell command:
+onechild
+(870697)Hello, I am a parent process
+(870698)Hello, I am a child process
+(870697) Please input your shell command:
+onechild
+(870697)Hello, I am a parent process
+(870699)Hello, I am a child process
+(870697) Please input your shell command:
+addnumbers
+(870697)Please input number, (0) to terminate
+3
+(870697)Read  3
+(870697)Please input number, (0) to terminate
+(870700)The subtotal is: 3
+5
+(870697)Read  5
+(870697)Please input number, (0) to terminate
+(870700)The subtotal is: 8
+7
+(870697)Read  7
+(870697)Please input number, (0) to terminate
+(870700)The subtotal is: 15
+0
+(870697)Read  0
+(870700)The subtotal is: 15
+(870697)The sum is 15
+(870697) Please input your shell command:
+exec
+(870697) Please input exec subcommand
+ls
+-al
+;
+total 40
+drwxr-xr-x 2 hidden fcsgrad    61 Sep 21 23:40 .
+drwxr-xr-x 5 hidden fcsgrad    61 Sep 21 11:41 ..
+-rwxr-xr-x 1 hidden fcsgrad 26824 Sep 21 23:40 a.out
+-rw-r--r-- 1 hidden fcsgrad  1093 Sep 21 23:40 sample_run_1.txt
+-rw-r--r-- 1 hidden fcsgrad  5503 Sep 21 23:39 solution.c
+(870697) Please input your shell command:
+processtree
+Please input the integer
+5
+(870697)The value is 0
+(870711)The value is 1
+(870708)The value is 2
+(870704)The value is 16
+(870706)The value is 4
+(870709)The value is 20
+(870713)The value is 18
+(870705)The value is 8
+(870715)The value is 10
+(870714)The value is 6
+(870710)The value is 12
+(870707)The value is 24
+(870712)The value is 28
+(870697) Please input your shell command:
+(870718)The value is 3
+(870719)The value is 17
+(870720)The value is 5
+(870722)The value is 21
+(870723)The value is 19
+(870716)The value is 22
+(870725)The value is 9
+(870730)The value is 29
+(870727)The value is 11
+(870726)The value is 7
+(870721)The value is 26
+(870728)The value is 13
+(870731)The value is 23
+(870732)The value is 27
+(870729)The value is 25
+(870717)The value is 14
+(870724)The value is 30
+(870734)The value is 15
+(870733)The value is 31
+stop

Assignment2/main.c

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+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <string.h>
+#include <stdbool.h>
+
+int main() {
+    bool is_looping = true;
+    // Listen loop
+    while (is_looping) {
+        char input[5][100];
+        char buffer[500];
+        //Print prompt
+        printf("[%d]> ", getpid());
+        if (fgets(buffer, 500, stdin) == NULL) {
+            break;
+        }
+        //split buffer on spaces into input array
+        sscanf(buffer, "%s %s %s %s %s", input[0], input[1], input[2], input[3], input[4]);
+
+        if (strcmp(input[0], "stop") == 0) {
+            is_looping = false;
+        }
+    }
+}