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How to find number of unique 'applications' in Debian jessie

This is a follow-up query on allpackages.txt.gz has two different file-sizes? $ wc -l allpackages.txt 57725 allpackages.txt I looked at the output and it says 57725 -6 the header files which is ...
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42 views

Getting the size of parent folders when using find to search for criteria?

I am hunting for a certain regular expression within the filenames and am seeking to return the parent folders with their sizes in a unique fashion. For example, here is the command that I expected ...
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1k views

How let `sort | uniq -c` separate the number of occurrences by a tab charactor?

uniq -c separate the occurrence number by spaces, which is hard for to cut or awk to separate it out later. 1000_A1\tB1\n ___1_A2\tB2\n I can solve this problem using sed -r 's/^ *([0-9]+)/\1\t/' ...