Single line text refinements.

pages/common/cal.md

@@ -10,9 +10,13 @@
 
 `cal -m {{month_number}}`
 
-- Display all 12 months of calendar for a specific year:
+- Display a 12 month calendar for the current year:
 
-`cal 2013`
+`cal -y`
+
+- Display a 12 month calendar for a specific year:
+
+`cal 2016`
 
 - Display date of Easter (western churches):
 

pages/common/ls.md

@@ -14,7 +14,7 @@
 
 `ls -la`
 
-- Long format list with size displayed using human readable units (KB,MB,GB):
+- Long format list with size displayed using human readable units (KB, MB, GB):
 
 `ls -lh`
 

pages/common/rename.md

@@ -6,7 +6,7 @@
 
 `rename {{'s/foo/bar/'}} {{\*}}`
 
-- Dry-run, display which renames would occur without performing them:
+- Dry-run - display which renames would occur without performing them:
 
 `rename -n {{'s/foo/bar/'}} {{\*}}`
 

pages/common/srm.md

@@ -3,15 +3,15 @@
 > Securely remove files or directories.
 > Overwrites the existing data one or multiple times. Drop in replacement for rm.
 
-- Remove a file after a single pass overwriting with random data:
+- Remove a file after a single-pass overwriting with random data:
 
 `srm -s {{/path/to/file}}`
 
-- Remove a file after seven passes overwriting it with random data:
+- Remove a file after seven passes of overwriting with random data:
 
 `srm -m {{/path/to/file}}`
 
-- Recursively remove a directory and contents overwriting each file with a single pass of random data:
+- Recursively remove a directory and its contents overwriting each file with a single-pass of random data:
 
 `srm -r -s {{/path/to/folder}}`