cp: remove leading / from paths; add -i example

pages/common/cp.md

@@ -4,24 +4,28 @@
 
 - Copy a file to another location:
 
-`cp {{/path/to/file.ext}} {{/path/to/copy.ext}}`
+`cp {{path/to/file.ext}} {{path/to/copy.ext}}`
 
 - Copy a file into another folder, keeping the filename:
 
-`cp {{/path/to/file.ext}} {{path/to/target/parent/folder}}`
+`cp {{path/to/file.ext}} {{path/to/target/parent/folder}}`
 
 - Copy a folder recursively to another location:
 
-`cp -r {{/path/to/folder}} {{/path/to/copy}}`
+`cp -r {{path/to/folder}} {{path/to/copy}}`
 
 - Copy a folder recursively into another folder, keeping the folder name:
 
-`cp -r {{/path/to/folder}} {{/path/to/target/parent/folder}}`
+`cp -r {{path/to/folder}} {{path/to/target/parent/folder}}`
 
 - Copy a folder recursively, in verbose mode (shows files as they are copied):
 
-`cp -vr {{/path/to/folder}} {{/path/to/copy}}`
+`cp -vr {{path/to/folder}} {{path/to/copy}}`
 
 - Copy the contents of a folder into another folder:
 
-`cp -r {{/path/to/source/folder/*}} {{/path/to/target/folder}}`
+`cp -r {{path/to/source/folder/*}} {{path/to/target/folder}}`
+
+- Interactively copy text files in the current directory to another location:
+
+`cp -i {{*.txt}} {{path/to/source/}}