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I have a file called abc. The content of abc is:
ccc
abc
ccc
ccc
a
b
dd
ccc
I want to sort the lines of the file and delete all duplicates (in this case ccc are duplicates).
In the shell script I use this:
sort -u < $1
But the sorted result becomes the standard output instead of saved into the abc file. How do I do this?
You can redirect output to a file as