Linux alias

alias awk_dup0='awk -F"\t" "{if(!(\$0 in db)){print \$0;db[\$0]=1}}"'
alias awk_dup1='awk -F"\t" "{if(!(\$1 in db)){print \$1;db[\$1]=1}}"'
alias awk_dup2='awk -F"\t" "{if(!(\$2 in db)){print \$0;db[\$2]=1}}"'
alias awk_dif0='awk -F"\t" "NR==FNR{db[\$0]=1}NR>FNR{if(!(\$0 in db)){print \$0}}"'
alias awk_dif1='awk -F"\t" "NR==FNR{db[\$1]=1}NR>FNR{if(!(\$1 in db)){print \$0}}"'
alias awk_dif2='awk -F"\t" "NR==FNR{db[\$2]=1}NR>FNR{if(!(\$2 in db)){print \$0}}"'

待续