Added some starting scripts

.gitignore

@@ -1,4 +1,4 @@
-# ---> macOS
+# ---> macOS
 .DS_Store
 .AppleDouble
 .LSOverride
@@ -24,12 +24,14 @@ Icon
 Network Trash Folder
 Temporary Items
 .apdisk
-
-# ---> CMake
-CMakeCache.txt
-CMakeFiles
-CMakeScripts
-Makefile
-cmake_install.cmake
-install_manifest.txt
-
+
+# ---> CMake
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Makefile
+cmake_install.cmake
+install_manifest.txt
+
+# Pycharm
+.idea/

README.md

@@ -1,3 +1,21 @@
 # learn_bash
 
-A repo dedicated to getting better at Bash Shell scripting
+A repo dedicated to getting better at Bash Shell scripting
+
+## Commands
+
+Add read and execute to a script using the DAC who symbols `u`, `g`, `o`. The ` a` symbol is equivalent to `ugo`. Both the read and execute bits must be set for the shell to read then execture a shell scripte.
+```bash
+chmod u+rx <script>
+
+```
+
+Using absolute params here we are adding `rwx` to user, and `r` to group, and other.
+
+```bash
+chmod 744 <script>
+```
+
+```bash
+chown <user_id>:<group_id> <script>
+```

scripts/all_args.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+#
+# $@ represents all of a scripts arguments and is useful to passing them to a command inside the script.
+#
+#
+VALUES=$@
+
+echo The args are: $@
+echo Storing a copy in VALUES
+
+# -e enables interpretation of backslash escapes
+echo -e "\nLets loop through our list of arguments"
+for value in $@; do
+    echo The current argument is: $value
+done

scripts/my_echo.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+#
+# Print something, then run ls
+
+echo About to run the ls command
+ls

scripts/pshow.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+#
+# Bourne Shell Variables
+#
+#
+echo Your script name is: $0
+echo First argument: $1
+echo Third argument: $3

scripts/shiftex.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+#
+# The shell command `shift` can be used to remove the first argument $1
+# and advance the rest of the arguments forward. $2 becomes $1, $3 becomes $2.
+#
+# Shiftex prints all three arguments by printing the first, shifting the remaining
+# arguments, and repeating.
+#
+#
+#
+
+# Print the number of arguments
+echo You submitted $# arguments
+
+echo Argument: $1
+shift
+echo Argument: $1
+shift
+echo Argument: $1