Terrad: Beautiful Address Generator

#!/bin/sh

## Terra address generator
##   Search addresses with a word.
##
## ATTENTION! Cannot run two processes in parallel,
##   causes inode issue: "Too many open files"
##   and also swap exaustion.


## Config

word1='yyyy'
word2=''

n=5 #how much addresses to find

#where to search
#  1 - search word1 in any place
#  2 - search word1 in the begining only, straight after terra1
#  3 - search word1 in end only
#  4 - search word1 in the begining and word2 in the end simultaniously
where=2


## Main code starts here

case $where in
    1) echo Search '"'$word1'"' in any place;;
    2) echo Search '"'$word1'"' in the begining only, straight after terra1;;
    3) echo Search '"'$word1'"' in the end;;
    4) echo Search '"'$word1'"' in the beginning and '"'$word2'"' in the end simultaniously;;
esac

while [ $n -gt 0 ]; do
    found='false'
    s=$(terrad keys add 1 --dry-run 2>&1)
    address=$(echo "$s" | head -4 | tail -1 | sed -e 's/.*address: \([0-9a-z]*\)/\1/')
    #echo $address
    case $where in
        1)
            #echo Search '"'$word1'"' in any place
            [ -z "${address##*$word1*}" ] && found='true'
            ;;
        2)
            #echo Search '"'$word1'"' in the begining only, straight after terra1
            [ -z "${address##terra1$word1*}" ] && found='true' && echo found
            ;;
        3)
            #echo Search '"'$word1'"' in the end
            [ -z "${address##*$word1}" ] && found='true'
            ;;
        4)
            #echo Search '"'$word1'"' in the beginning and '"'$word2'"' in the end simultaniously
            [ -z "${address##terra1$word1*$word2}" ] && found='true'
            ;;
    esac
    if [ "$found" = 'true' ]; then
        echo $address >> terra.log
        echo "$s" | tail -1 >> terra.log
        echo '' >> terra.log
        n=$((n-1))
        echo address stored
    fi
done