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--- linux:find [2023/05/29 11:55] – external edit 127.0.0.1
+++ linux:find [2025/05/19 12:15] (current) – [Recursively changing extension] Wuff
@@ Line 1: / Line 1: @@
 ====== find examples ======
+General note to ''-exec {} +'' vs ''-exec {} \;'':
+The following executes program and sends a space separated list of quoted filenames to it. Program may be called multiple times if the amount of arguments exceeds ARG_MAX.
+<code>find . -exec program {} +</code>
+The following executes program with one! quoted filename, then executes program again with the next etc.
+<code>find . -exec program {} \;</code>
 Find and extract all rar files in subfolders into the current folder:
@@ Line 64: / Line 74: @@
 find . -type f -name "*\[*" -print0 | xargs -r0 rename 's/(.*) \[(\d\d\d\d?p)\](.*)/$1.$2$3/' --
 </code>
+Recursive file renaming extension (e.g. from "something.oldext" to "something.newext") :
+<code>
+find . -type f -name '*.oldext' -print0 | xargs -0 rename 's/\.oldext/\.newext/'
+</code>
 Move files in subdirectories to other directory while retaining directory structure
@@ Line 85: / Line 101: @@
 <code>
 for file in *; do mv "$file" `echo $file | tr ' ' '_'` ; done
+</code>
+====== Find largest subdirectories ======
+<code>
+du -hd1 | sort -h
+</code>
+====== Recursively changing extension ======
+<code>
+find . -type f -name "*.part" -exec sh -c 'mv "$1" "${1%.part}.!qB"' _ {} \;
+find . -type f -name '*.JPG' -print0 | xargs -0 sudo rename 's/.JPG$/.jpg/'
+</code>
+====== Recursively delete empty directories ======
+<code>
+find . -type d -empty -delete
 </code>