diff --git a/Bash Tips - functions.pdf b/Bash/Bash Tips - functions.pdf
similarity index 100%
rename from Bash Tips - functions.pdf
rename to Bash/Bash Tips - functions.pdf
diff --git a/Bash/parameter-expansion.png b/Bash/parameter-expansion.png
new file mode 100644
index 0000000..01dd510
Binary files /dev/null and b/Bash/parameter-expansion.png differ