Following is the content of the file "oscars.txt".
Christoph Waltz:2012
Christopher Plummer:2011
Jared Leto:2013
Christian Bale: 2010
Christoph Waltz:2009
Heath Ledger: 2008
Sort the file so that the file appears in the ascending order of year.
cat oscars.txt | cut -d ":" -f2 | sort -n
cat oscars.txt | sort -n
cat oscars.txt | sort -nt " " -k3
cat oscars.txt | sort -nt ":" -k2
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