05-10-2019
Hello
Shankar455,
I have a few to questions pose in response first:-
- Is this homework/assignment? There are specific forums for these.
- What have you tried so far?
- What output/errors do you get?
- What OS and version are you using?
- What are your preferred tools? (C, shell, perl, awk, etc.)
- What logical process have you considered? (to help steer us to follow what you are trying to achieve)
Most importantly,
What have you tried so far?
There are probably many ways to achieve most tasks, so giving us an idea of your style and thoughts will help us guide you to an answer most suitable to you so you can adjust it to suit your needs in future.
The logic isn't very explicit I'm afraid. Can you break it down into simpler steps? Something like:-
For every file
- Get the value F1 for the first field (underscore separated)
- Get value F2 the second field (underscore separated)
- Get the F3 third field (underscore separated)
- Write the content of the file to F1_F2_F3.txt
Are you really just looking to write all the files that match the 1st, 2nd & 3rd parts of the filename to a common file?
I might have missed the point of your original question. Please can you be specific and lay out your logic to make sure we help you in the right way. That will also help you to have a go yourself that we can then help with. We're all here to learn and getting the relevant information will help us all.
Kind regards,
Robin
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CUT(1) FSF CUT(1)
NAME
cut - remove sections from each line of files
SYNOPSIS
cut [OPTION]... [FILE]...
DESCRIPTION
Print selected parts of lines from each FILE to standard output.
Mandatory arguments to long options are mandatory for short options too.
-b, --bytes=LIST
output only these bytes
-c, --characters=LIST
output only these characters
-d, --delimiter=DELIM
use DELIM instead of TAB for field delimiter
-f, --fields=LIST
output only these fields; also print any line that contains no delimiter character, unless the -s option is specified
-n with -b: don't split multibyte characters
-s, --only-delimited
do not print lines not containing delimiters
--output-delimiter=STRING
use STRING as the output delimiter the default is to use the input delimiter
--help display this help and exit
--version
output version information and exit
Use one, and only one of -b, -c or -f. Each LIST is made up of one range, or many ranges separated by commas. Each range is one of:
N N'th byte, character or field, counted from 1
N- from N'th byte, character or field, to end of line
N-M from N'th to M'th (included) byte, character or field
-M from first to M'th (included) byte, character or field
With no FILE, or when FILE is -, read standard input.
AUTHOR
Written by David Ihnat, David MacKenzie, and Jim Meyering.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for cut is maintained as a Texinfo manual. If the info and cut programs are properly installed at your site, the
command
info cut
should give you access to the complete manual.
cut (coreutils) 4.5.3 February 2003 CUT(1)