Linux alias

alias awk_dup0='awk -F" " "{if(!($0 in db)){print $0;db[$0]=1}}"'
alias awk_dup1='awk -F" " "{if(!($1 in db)){print $1;db[$1]=1}}"'
alias awk_dup2='awk -F" " "{if(!($2 in db)){print $0;db[$2]=1}}"'
alias awk_dif0='awk -F" " "NR==FNR{db[$0]=1}NR>FNR{if(!($0 in db)){print $0}}"'
alias awk_dif1='awk -F" " "NR==FNR{db[$1]=1}NR>FNR{if(!($1 in db)){print $0}}"'
alias awk_dif2='awk -F" " "NR==FNR{db[$2]=1}NR>FNR{if(!($2 in db)){print $0}}"'

待续