Update cheatsheets

linux/prename

@@ -0,0 +1,30 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# rename
+
+> Rename multiple files.
+> Note: this page refers to the command from the `prename` Fedora package.
+> More information: <https://manned.org/man/prename>.
+
+- Rename files using a Perl Common Regular Expression (substitute 'foo' with 'bar' wherever found):
+
+`rename {{'s/foo/bar/'}} {{*}}`
+
+- Dry-run - display which renames would occur without performing them:
+
+`rename -n {{'s/foo/bar/'}} {{*}}`
+
+- Force renaming even if the operation would remove existing destination files:
+
+`rename -f {{'s/foo/bar/'}} {{*}}`
+
+- Convert filenames to lower case (use `-f` in case-insensitive filesystems to prevent "already exists" errors):
+
+`rename 'y/A-Z/a-z/' {{*}}`
+
+- Replace whitespace with underscores:
+
+`rename 's/\s+/_/g' {{*}}`