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--- linux:linux_shell [2025/01/21 07:40] – created azman
+++ linux:linux_shell [2025/01/21 08:11] (current) – azman
@@ Line 1: / Line 1: @@
-====== Linux Shell Stuff ======
+====== Linux Shell ======
 Useful command-line stuff.
+===== Raw Disk Data =====
+Using ''dd''<code bash>$ dd if=ifile of=ofile skip=offs count=size status=progress</code> where ''skip'' and ''count'' values are in sector counts.
+<file text dd_size.txt>
+- note on byte-size & sector size (for 512-bytes sector size)
+M:     1048576byte @ 000002048sect
+G:  1073741824     @ 002097152
+G: 10737418240     @ 020971520
+G: 53687091200     @ 104857600
+G: 85899345920     @ 167772160
+</file>
 ===== File Management =====
@@ Line 8: / Line 21: @@
 <code bash>
-find . -type d -empty -print
+$ find . -type d -empty -print
-find . -type d -empty -delete
+$ find . -type d -empty -delete
-find -type f \( -name "*zip" -o -name "*tar" -o -name "*gz" \) -size +1M -delete
+$ find -type f \( -name "*zip" -o -name "*tar" -o -name "*gz" \) -size +1M -delete
-find -type f \( -name "*zip" -o -name "*tar" -o -name "*gz" \) -size +1M -exec rm {} +
+$ find -type f \( -name "*zip" -o -name "*tar" -o -name "*gz" \) -size +1M -exec rm {} +
 </code>