01-31-2013
awk to insert new line conditionally
Dear All,
I have a file like:
Quote:
1 1 1 2011
2 2 2 2001
3 3 3 2011
4 4 4 2001
5 5 5 2011
If $4=2001, a duplicated line will be inserted and $4 will be assigned value 2011; so that the new file would be:
Quote:
1 1 1 2011
2 2 2 2001
2 2 2 2011
3 3 3 2011
4 4 4 2001
4 4 4 2011
5 5 5 2011
How to write awk to accomplish this? thank you very much!
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LEARN ABOUT DEBIAN
mconv_stream_converter
mconv_stream_converter(3m17n) The m17n Library mconv_stream_converter(3m17n)
NAME
mconv_stream_converter - Create a code converter bound to a stream.
SYNOPSIS
MConverter* mconv_stream_converter (MSymbol name, FILE * fp)
DESCRIPTION
Create a code converter bound to a stream. The mconv_stream_converter() function creates a pointer to a code converter for coding system
name. The code converter is bound to stream fp. Subsequent decodings and encodings are done to/from this stream.
name can be Mnil. In this case, a coding system associated with the current locale (LC_CTYPE) is used.
RETURN VALUE
If the operation was successful, mconv_stream_converter() returns the created code converter. Otherwise it returns NULL and assigns an
error code to the external variable merror_code.
ERRORS
MERROR_SYMBOL, MERROR_CODING
SEE ALSO
mconv_buffer_converter()
COPYRIGHT
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Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License
<http://www.gnu.org/licenses/fdl.html>.
Version 1.6.2 12 Jan 2011 mconv_stream_converter(3m17n)