I want to grep a file to see all the transactions that were done at the 14th hour of the day.
"localhost_access_log.2013-08-20.txt" the file i want to search in
I recently had trouble with some regex on the command-line, and
found that for matching a backslash, different numbers of
characters can be used. This number depends on the quoting used for
the regex (none, single quotes, double quotes).