[R] how to ignore or omit somethings while reading the data table

From: mrafi <confessin_at_gmail.com>
Date: Wed, 2 Jan 2008 05:14:26 -0800 (PST)

hello respected ppl...
am a engg. student...i was trying to use R in statistical calculations
now the problem is..i imported a huge tsv file onto R...it has a column
which gives cost...and it has "$" with each numerical value in this column...it is something like this..$.05,$.1,$.075...and so on.. R is reading it as "character vector"... i tried using all the arguments but could only change it to a "factor" i want to read it as numericals...and perform further operations.. i know it is a stupid problem but can any1 help me get outta this... thank you all...!!!
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