Update cheatsheets

pathchk

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pathchk
+
+> Check the validity and portability of pathnames.
+> More information: <https://www.gnu.org/software/coreutils/pathchk>.
+
+- Check pathnames for validity in the current system:
+
+`pathchk {{path1 path2 …}}`
+
+- Check pathnames for validity on a wider range of POSIX compliant systems:
+
+`pathchk -p {{path1 path2 …}}`
+
+- Check pathnames for validity on all POSIX compliant systems:
+
+`pathchk --portability {{path1 path2 …}}`
+
+- Only check for empty pathnames or leading dashes (-):
+
+`pathchk -P {{path1 path2 …}}`