Reorganize the codebase

regression/apps/scripts/run_tests.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+set -e
+
+SCRIPT_DIR=/scripts
+cd ${SCRIPT_DIR}/..
+
+echo "Running tests......"
+tests="hello_world/hello_world fork/fork execve/execve fork_c/fork signal_c/signal_test pthread/pthread_test hello_pie/hello"
+
+for testcase in ${tests}
+do 
+    echo "Running test ${testcase}......"
+    ${testcase}
+done
+echo "All tests passed"

regression/apps/scripts/test_cmd.sh

@@ -0,0 +1,37 @@
+#!/bin/sh
+
+set -e
+set -x
+
+SCRIPT_DIR=/scripts
+cd ${SCRIPT_DIR}
+
+touch hello.txt
+mv hello.txt hello_world.txt
+rm hello_world.txt
+
+awk '{print $2}' test_cmd.sh
+cp test_cmd.sh test_cmd_backup.sh
+cat test_cmd_backup.sh
+rm test_cmd_backup.sh
+
+ln -s test_cmd.sh tesk_cmd_soft_link
+readlink -f tesk_cmd_soft_link
+tail -n 1 tesk_cmd_soft_link
+rm tesk_cmd_soft_link
+
+ln test_cmd.sh tesk_cmd_hard_link
+tail -n 1 tesk_cmd_hard_link
+unlink tesk_cmd_hard_link
+
+sed 3q test_cmd.sh
+
+find . -name "*test_cmd*" 
+
+mkdir foo
+rmdir foo 
+
+echo "Hello world from jinux" > hello.txt
+rm hello.txt
+
+cd ..