Using awk, find duplicates in a file without sorting, which reorders the contents. awk will not reorder them, and still find and remove duplicates which you can then redirect into another file.
Thanks to the authors of:
awk '!x[$0]++' <file>
and the author of:
joinargs() { (local IFS="$1"; shift && echo "$*") }
and others, we can have a fast Linux or android.
IMPORTANT if you find a priority order problem in PATH you can push a path directory to the front without duplication as follows:
PATH=/bin:$PATH
then ...
Check duplication with:
echo $PATH|tr : '\n'|sort|uniq -d
Finally do a very neat line by line list of $PATH:
echo "${PATH//:/$'\n'}
The speed up is very noticeable for android, and builds on Linux Ubantu are much faster with make and scripts.
I will update the command on request. Timothy from SONY
Remove duplicate lines whilst keeping order and empty lines
Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?
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