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--- remove_lines_with_duplicate_letters [2023/08/27 23:47] – [Issue] raju
+++ remove_lines_with_duplicate_letters [2023/08/27 23:48] (current) – raju
@@ Line 22: / Line 22: @@
 <code>
-% grep -i "^[hikers][hikers][hikers][hikers][hikers]$" /usr/share/dict/american-english | grep -viE "(.).*\1"
+% grep -Ei "^[hikers]{5}$" /usr/share/dict/american-english | grep -viE "(.).*\1"
 Sheri
 Shrek