Using bash, separate servers into separate file depending on even or odd numbers -

the output comes command run our netscaler. outputs following ... 1 thing note middle 2 numbers change even/odd criteria on last digit. never have more 2 digits, we'll never hit 10.

wc-01-web1 wc-01-web4 wc-01-web3 wc-01-web5 wc-01-web8 

i need populate file called "even" , "odds." if we're dealing numbers can figure out, having number within string throwing me off.

example code i'm missing part need match string.

if [ $even_servers -eq 0 ]      echo $line >> evenfile  else     echo $line >> oddfile fi 

this simple awk command:

awk '/[02468]$/{print > "evenfile"}; /[13579]$/{print > "oddfile"}' input.txt 

there must better way.