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Top Forums UNIX for Beginners Questions & Answers Last n characters of column as new column Post 303045460 by vgersh99 on Wednesday 25th of March 2020 05:45:06 PM
Old 03-25-2020
how about:
awk '{print $1, substr($1,length($1)-1)}' OFS='\t'  myInputFile

This User Gave Thanks to vgersh99 For This Post:

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funcolumnlookup(3)						SAORD Documentation						funcolumnlookup(3)

FunColumnLookup - lookup a Funtools column SYNOPSIS
#include <funtools.h> int FunColumnLookup(Fun fun, char *s, int which, char **name, int *type, int *mode, int *offset, int *n, int *width) DESCRIPTION
The FunColumnLookup() routine returns information about a named (or indexed) column. The first argument is the Fun handle associated with this set of columns. The second argument is the name of the column to look up. If the name argument is NULL, the argument that follows is the zero-based index into the column array of the column for which information should be returned. The next argument is a pointer to a char *, which will contain the name of the column. The arguments that follow are the addresses of int values into which the following information will be returned: o type: data type of column: o A: ASCII characters o B: unsigned 8-bit char o I: signed 16-bit int o U: unsigned 16-bit int (not standard FITS) o J: signed 32-bit int o V: unsigned 32-bit int (not standard FITS) o E: 32-bit float o D: 64-bit float o mode: bit flag status of column, including: o COL_ACTIVE 1 is column activated? o COL_IBUF 2 is column in the raw input data? o COL_PTR 4 is column a pointer to an array? o COL_READ 010 is read mode selected? o COL_WRITE 020 is write mode selected? o COL_REPLACEME 040 is this column being replaced by user data? o offset: byte offset in struct o n: number of elements (i.e. size of vector) in this column o width: size in bytes of this column If the named column exists, the routine returns a positive integer, otherwise zero is returned. (The positive integer is the index+1 into the column array where this column was located.) If NULL is passed as the return address of one (or more) of these values, no data is passed back for that information. For example: if( !FunColumnLookup(fun, "phas", 0, NULL NULL, NULL, NULL, &npha, NULL) ) gerror(stderr, "can't find phas column "); only returns information about the size of the phas vector. SEE ALSO
See funtools(7) for a list of Funtools help pages version 1.4.2 January 2, 2008 funcolumnlookup(3)

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