Initial commit of ln documentation

_commands/basics/ln.md

@@ -0,0 +1,89 @@
+
+---
+---
+
+ln
+-------
+`ln` is a unix command used for making hard links or symbolic links with files or directories.
+Hard links actually link the files make it so one can access a file or directory using a different name.
+Soft links create references using pointers, and can only be made on directories.
+These functionalities are useful when one wants to have two directories that reflect eachothers changes. 
+
+~~~ bash
+$ tree
+.
+├── file1
+└── temp
+$ ls -l
+total 8
+-rw-r--r--  1 eleanorreich  staff   5 Oct 24 14:29 file1
+drwxr-xr-x  2 eleanorreich  staff  64 Oct 24 14:32 temp
+$ ln file1 temp/file2
+$ ls -l
+total 8
+-rw-r--r--  2 eleanorreich  staff   5 Oct 24 14:29 file1
+drwxr-xr-x  3 eleanorreich  staff  96 Oct 24 14:34 temp
+
+~~~
+
+<!--more-->
+
+Note: if you have a symbolic link, it is an indirect reference. Therefore, if you remove the file being 
+pointed to with out the -rf option, the link will exist but will be to an invalid file
+
+
+#### ln <source_dir>/* <new_dir>
+
+##### This will make all the files in source_dir available using the name new_dir.
+
+
+-i : print an error if there is a duplicate pathname, and prompt users if they want to remove the
+conflicting path
+-f : ignore error of duplicate pathname
+-v : shows filenames as they are linked
+-r/R : link recursively
+-q : warning messages suppressed
+---
+---
+
+ln
+-------
+`ln` is a unix command used for making hard links or symbolic links with files or directories.
+Hard links actually link the files make it so one can access a file or directory using a different name.
+Soft links create references using pointers, and can only be made on directories.
+These functionalities are useful when one wants to have two directories that reflect eachothers changes. 
+
+~~~ bash
+$ tree
+.
+├── file1
+└── temp
+$ ls -l
+total 8
+-rw-r--r--  1 eleanorreich  staff   5 Oct 24 14:29 file1
+drwxr-xr-x  2 eleanorreich  staff  64 Oct 24 14:32 temp
+$ ln file1 temp/file2
+$ ls -l
+total 8
+-rw-r--r--  2 eleanorreich  staff   5 Oct 24 14:29 file1
+drwxr-xr-x  3 eleanorreich  staff  96 Oct 24 14:34 temp
+
+~~~
+
+<!--more-->
+
+Note: if you have a symbolic link, it is an indirect reference. Therefore, if you remove the file being 
+pointed to with out the -rf option, the link will exist but will be to an invalid file
+
+
+#### ln <source_dir>/* <new_dir>
+
+##### This will make all the files in source_dir available using the name new_dir.
+
+
+-i : print an error if there is a duplicate pathname, and prompt users if they want to remove the
+conflicting path
+-f : ignore error of duplicate pathname
+-v : shows filenames as they are linked
+-r/R : link recursively
+-q : warning messages suppressed