If I have this array
arra[0]='Debian'
arra[1]='Debian'
arra[2]='Ubuntu'
arra[3]='Suse'
How can I stock in a new array Debian, Ubuntu and Suse only ? like this
new[0]='Debian'
new[1]='Ubuntu'
new[2]='Suse'
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Have a look at this over on Stack Overflow: stackoverflow.com/questions/1494178/… – Nifle Feb 10 '15 at 17:30
A working answer:
eval newArray=($(for i in "${arra[@]}" ; do echo "\"$i\"" ; done | sort -u))
It works with spaces in your array elements like in 'Red Hat': you need to print quote "" around your variable value ("\"$i\"") and eval the result.
A more elegant alternative
eval newArray=($(printf "%q\n" "${arra[@]}" | sort -u))
where the format %q is needed to quote the output of printf.
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Thus works but eval in shell scripting is almost always a bad idea. Better to upgrade to bash 4 and get true associative arrays. – Nifle Feb 10 '15 at 17:33
