How to use GREP/other commands in UNIX for stripping head and tail records from a text file

I have a flat file as given below. How do I delete the header and footer from the file which header starts with 'H:' and trailer starts with 'T:' using UNIX shell script(KSH) and rewrite the rest of the data into a different file?

H:20050427 HEADER RECORD
0000000 00000 000000000 123456 00 654321 DATARECORD
0000000 00000 000000000 123456 00 654321 DATARECORD
0000000 00000 000000000 123456 00 654321 DATARECORD
0000000 00000 000000000 123456 00 6开发者_运维技巧54321 DATARECORD
T:20050427 TRAILER RECORD

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To remove the first and last line, you could do:

 tail -n +2 input-file | head -n -1 > output-file

... or to just remove any lines beginning with 'H:' or 'T:' you could do:

 egrep -v '^[HT]:' input-file > output-file

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Assuming what you've shown is reasonably representative of the other data (everything you want to keep starts with a number, and everything you want to get rid of starts with a letter), it should be pretty trivial, something like: grep "^[0-9]" inputfile > outputfile

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To remove the first and last lines: sed '1d;$d' file