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Top Forums UNIX for Beginners Questions & Answers Removing letters after a certain character within a range of columns Post 302988795 by Don Cragun on Tuesday 3rd of January 2017 04:28:59 AM
Old 01-03-2017
Please also explain what you mean by "remove al letters after : character". The sample data you provided did not contain any letters in the fields you specified and instead of removing letters after a <colon> character, you removed all punctuation and decimal digits from those fields after the 1st <colon> character and also removed that <colon> character.

Your input field separator seems to be a sequence of four <space> characters. Your output field separator seems to be a sequence of four or five <space> characters (although I didn't check all of the output sequences). Is there any reason why a single <space> is insufficient as a field separator in your output?
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SORT(1) 						      General Commands Manual							   SORT(1)

NAME
sort - sort a file of ASCII lines SYNOPSIS
sort [-bcdfimnru] [-tc] [-o name] [+pos1] [-pos2] file ... OPTIONS
-b Skip leading blanks when making comparisons -c Check to see if a file is sorted -d Dictionary order: ignore punctuation -f Fold upper case onto lower case -i Ignore nonASCII characters -m Merge presorted files -n Numeric sort order -o Next argument is output file -r Reverse the sort order -t Following character is field separator -u Unique mode (delete duplicate lines) EXAMPLES
sort -nr file # Sort keys numerically, reversed sort +2 -4 file # Sort using fields 2 and 3 as key sort +2 -t: -o out # Field separator is : sort +.3 -.6 # Characters 3 through 5 form the key DESCRIPTION
Sort sorts one or more files. If no files are specified, stdin is sorted. Output is written on standard output, unless -o is specified. The options +pos1 -pos2 use only fields pos1 up to but not including pos2 as the sort key, where a field is a string of characters delim- ited by spaces and tabs, unless a different field delimiter is specified with -t. Both pos1 and pos2 have the form m.n where m tells the number of fields and n tells the number of characters. Either m or n may be omitted. SEE ALSO
comm(1), grep(1), uniq(1). SORT(1)
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