Shell Programming and Scripting

$myName$|xxx

$myName$|xxx

My name is $myName$

my name is xxx

awk -F\| 'NR==FNR{A=$1; gsub("\\$", "\\$", A); rep[A]=$2; next;}
{ for(r in rep) gsub(r, rep[r],$0);
  print $0 }' file1 file2

awk -F\| 'NR==FNR{rep[$1]=$2; next;}
{ for(r in rep) gsub(r, rep[r],$0);
  print $0 }' file1 file2

awk 'NR==FNR{gsub(/\|/," ");a[$1]=$1;b[$1]=$2;next}{c[$4]=$4;d[$4]=$1" "$2" "$3}
END{for(i in c) if(c[i]==a[i]) print d[i],b[i]; else print d[i],c[i]}' file1 file2

$myName$|xxx
$myAge$|21
$myShell$|/bin/bash

My name is $myName$, and I'm $myAge$ years old.
I love $myShell$

I love $myShell$ 
My name is $myName$,

$ cat file1
$myName$|xxx
$yourName1$|xxy
$hisName$|zzz

$ cat file2
Your name is $yourName$
My name is $myName$
His name is $hisName$

$ awk -F\| 'NR==FNR{rep[$1]=$2; next;}
{ for(r in rep) gsub(r, rep[r],$0);
  print $0 }' file1 file2
Your name is $yourName$
My name is $myName$
His name is $hisName$

awk -F\| '{if(!($1 in F))P[++f]=$1;F[$1];R[$1,$2]=$3}
END{
   for(i=1;i<=f;i++)  {
     while((getline < P[i]) > 0) {
         for(idx in R) {
            split(idx,val,SUBSEP);
            if(val[1]==P[i]) gsub(val[2],R[idx]);
         }
         print $0
     }
     close(P[i])
   }
}' ConfigFile