Update cheatsheets

copyq

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# copyq
+
+> Clipboard manager with advanced features.
+> More information: <https://copyq.readthedocs.io/en/latest/command-line.html>.
+
+- Launch CopyQ to store clipboard history:
+
+`copyq`
+
+- Show current clipboard content:
+
+`copyq clipboard`
+
+- Insert raw text into the clipboard history:
+
+`copyq add -- {{text1}} {{text2}} {{text3}}`
+
+- Insert text containing escape sequences ('
+', '	') into the clipboard history:
+
+`copyq add {{firstline
+secondline}}`
+
+- Print the content of the first 3 items in the clipboard history:
+
+`copyq read 0 1 2`
+
+- Copy a file's contents into the clipboard:
+
+`copyq copy < {{path/to/file.txt}}`
+
+- Copy a JPEG image into the clipboard:
+
+`copyq copy image/jpeg < {{path/to/image.jpg}}`