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--- grep [2023/08/01 18:27] – created steve
+++ grep [2026/04/10 21:56] (current) – steve
@@ Line 1: / Line 1: @@
 ==== Grep commands to do various things... ====
-  * grep -v '^\s*$\|^\s*\#'   Removes comments and blank lines
+  * ''%% grep -v '^\s*$\|^\s*\#' %%''   Removes comments and blank lines
+  * ''%% grep '^r......ing$' /usr/share/dict/words %%''  Get all of the 10 letter words starting with an r and ending in ing.
+  * The caret(^) marks the beginning of a line, the dollar ($) marks the end.
+<code>
+# Get all the seven letter words that start with a vowel, have a vowel in the fifth position and an r in the seventh position.
+grep -E '^[aeiou]...[aeiou].r$' /usr/share/dict/words
+amateur
+angrier
+artsier
+atelier
+earlier
+emptier
+itchier
+opaquer
+outdoor
+outwear
+unclear
+uniquer
+untruer
+# And this is 'Words that start with two vowels, then two of anything, another vowel, and end in an r'.
+grep -E '^[aeiou]{2}..[aeiou]r$' /usr/share/dict/words
+airier
+author
+earner
+easier
+eerier
+either
+oilier
+ouster
+</code>