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Multi tool use

I am pasting below output of my head command of a BSE stock data column which I use for R programming practice. I googled and tried almost every trick but I am not able to clear white spaces at the end of these values. It seems that all the strings have fixed width of 12 and after characters I see white space which I am unable to remove.

not sure if this will paste in exact same way(e.g. i see a lot of white space after word HDFC in its double quotes) but no technique helped me get rid of those trailing whitespaces.

Base R, without regex:

trimws stands for "trim white space".

You should be able to fix this with sub and a regular expression.

Details:

So the sub statement will identify any string of whitespace characters at the end of the string and replace it with the empty string.

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