Shell Programming and Scripting

1-BODY-ANY-NAME.txt
1-FTR-ANY-NAME.txt
1-HDR-ANY-NAME.txt
2-BODY-ANY-NAME.txt
2-FTR-ANY-NAME.txt
2-HDR-ANY-NAME.txt
3-BODY-ANY-NAME.txt
3-FTR-ANY-NAME.txt
3-HDR-ANY-NAME.txt

1-ANY-NAME.txt
2-ANY-NAME.txt
3-ANY-NAME.txt

ls | awk -F- '{ print $1 }' | sort -u | while read X
do
      echo cat $X-HDR-* $X-BODY-* $X-FTR-*
done

 cat $X-HDR-* $X-BODY-* $X-FTR-* > output-$X.txt

#!/bin/bash

for i in {1..3}
do
    cat ${i}-HDR-ANY-NAME.txt ${i}-BODY-ANY-NAME.txt ${i}-FTR-ANY-NAME.txt > ${i}-ANY-NAME.txt
done

for section in HDR BODY FTR
do
   ls -1 *$section* | while read file
   do
      new_file="${file%-${section}*}"-"${file#*${section}-}"
      cat "$file" >> "$new_file"
   done
done

1-HDR-FLASH_1-1H1-1305_1_20120618_20120624.txt
1-BODY-1-1H1-1305-201225
1-FTR

FLASH_1-1H1-1305_1_20120618_20120624.txt

for hfile in *HDR*
do
   new_file=${hfile#*HDR-}
   n=${hfile%%HDR*}
   cat "${n}HDR"*  >  $new_file 2>/dev/null
   cat "${n}BODY"* >> $new_file 2>/dev/null
   cat "${n}FTR"*  >> $new_file 2>/dev/null
done