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Top Forums Shell Programming and Scripting Remove '.' from file for numbers ending in '.' Post 302935422 by Scrutinizer on Monday 16th of February 2015 01:33:04 PM
Old 02-16-2015
Note that the suggestions test if the preceding character is a digit, not if a field that consists of a number ends with a dot. For example if one of the fields would be A1. then this approach would fail.

An alternative would be to split it into fields and test each field if it is numeric and if it ends in a dot. For example:
Code:
awk '{for(i=1; i<=NF; i++) if($i==$i+0) sub(/\.$/,x,$i)}1' FS=\| OFS=\| file

 

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HOSTNAME(7)						 Miscellaneous Information Manual					       HOSTNAME(7)

NAME
hostname - host name resolution description DESCRIPTION
Hostnames are domains, where a domain is a hierarchical, dot-separated list of subdomains; for example, the machine monet, in the Berkeley subdomain of the EDU subdomain of the ARPANET would be represented as monet.Berkeley.EDU (with no trailing dot). Hostnames are often used with network client and server programs, which must generally translate the name to an address for use. (This function is generally performed by the library routine gethostbyname(3).) Hostnames are resolved by the internet name resolver in the fol- lowing fashion. If the name consists of a single component, i.e. contains no dot, and if the environment variable ``HOSTALIASES'' is set to the name of a file, that file is searched for an string matching the input hostname. The file should consist of lines made up of two white-space sepa- rated strings, the first of which is the hostname alias, and the second of which is the complete hostname to be substituted for that alias. If a case-sensitive match is found between the hostname to be resolved and the first field of a line in the file, the substituted name is looked up with no further processing. If the input name ends with a trailing dot, the trailing dot is removed, and the remaining name is looked up with no further processing. If the input name does not end with a trailing dot, it is looked up in the local domain and its parent domains until either a match is found or fewer than 2 components of the local domain remain. For example, in the domain CS.Berkeley.EDU, the name lithium.CChem will be checked first as lithium.CChem.CS.Berkeley.EDU and then as lithium.CChem.Berkeley.EDU. Lithium.CChem.EDU will not be tried, as the there is only one component remaining from the local domain. SEE ALSO
gethostbyname(3), resolver(5), mailaddr(7), named(8), RFC883 4.2 Berkeley Distribution November 21, 1987 HOSTNAME(7)
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