Shell Programming and Scripting

sed '/^$/d'  input_file.txt |  awk -F": "  '/DEPT/ { no=$2 ; print $0 >> "File_"$2; next} {print $0 >>"File_"no}'

#!/usr/bin/env python
data= open("file").read().split("\n\n")
for i in data:
    ind=i.index(":")
    end=i.index("EMPNAME")
    dept_number = i[ind+1:end].strip()
    open("file_"+str(dept_number)+".txt","a").write(i+"\n")

# ./test.py
# more file_1.txt
DEPT ID: 1
EMPNAME: XYZ
EMPAddress: XYZZZ
DEPT ID: 1
EMPNAME: PQR
EMPAddress: PQRS

# more file_2.txt
DEPT ID: 2
EMPNAME: ABC
EMPAddress: ABCD
DEPT ID: 2
EMPNAME: EFG
EMPAddress: EFGH

# more file_3.txt
DEPT ID: 3
EMPNAME: LMN
EMPAddress: LMNO

awk '/DEPT ID/{n=$2;getline;print >>"File_"n;getline;print >>"File_"n}' FS=': ' inputfile.txt

sed '/^$/d'  input_file.txt |  awk -F": "  '/DEPT/ { no=$2 ; print $0 >> "File_"$2; next} {print $0 >>"File_"no}'

awk '/DEPT ID/{n=$2;getline;print >>"File_"n;getline;print >>"File_"n}' FS=': ' inputfile.txt

awk -F": " '$1=="DEPT ID" {n=$2; next} {print >> "dep" n ".txt"}' inputfile.txt

awk -F": " '$1=="DEPT ID" {n=$2} {print >> "dep" n ".txt"}' inputfile.txt

my (%hash,$file);
do{
  local $/="\n\n";
  while(<DATA>){
    if(/DEPT ID:\s*([0-9]+)\s*EM/){
      $hash{$1}.=$_;
    }
  }
};

foreach my $item (keys %hash){
  $file=sprintf("file%s.txt",$item);
  open FH,">$file";
  print FH $hash{$item};
  close FH;
}

__DATA__
DEPT ID: 1
EMPNAME: XYZ
EMPAddress: XYZZZ

DEPT ID: 2
EMPNAME: ABC
EMPAddress: ABCD

DEPT ID: 1
EMPNAME: PQR
EMPAddress: PQRS

DEPT ID: 2
EMPNAME: EFG
EMPAddress: EFGH

DEPT ID: 3
EMPNAME: LMN
EMPAddress: LMNO