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Top Forums Shell Programming and Scripting How to substitute a word in multiple file? Post 303005892 by natraj005 on Tuesday 24th of October 2017 12:24:03 PM
Old 10-24-2017
Quote:
Originally Posted by RudiC
Wildly guessing what might be "not working" I came up with
Code:
find /tmp -type f -exec sed 's/HOSTNAME=`hostname`/HOSTNAME=localhost/g' {} \;

Does this do what you want? But - this will output all modified files to stdout; correct redirections may not be that easy to find.
My bad, still its not get substituting, I used below one
Code:
find /tmp -type f -exec sed 's/HOSTNAME=`hostname`/HOSTNAME=localhost/g' {} \;

Moderator's Comments:
Mod Comment
Please wrap all code, files, input & output/errors in CODE tags.
It makes it easier to read and preserves spaces for indenting or fixed-width data.

Last edited by rbatte1; 10-24-2017 at 01:44 PM.. Reason: Added CODE tags
 

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HOSTNAME(7)						     Linux Programmer's Manual						       HOSTNAME(7)

NAME
hostname - hostname 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 domain would be represented as "monet.Berkeley.EDU". Hostnames are often used with network client and server programs, which must generally translate the name to an address for use. (This task is generally performed by either getaddrinfo(3) or the obsolete gethostbyname(3).) Hostnames are resolved by the Internet name resolver in the following fashion. If the name consists of a single component, that is, contains no dot, and if the environment variable HOSTALIASES is set to the name of a file, that file is searched for any 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-insensitive 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 by searching through a list of domains until a match is found. The default search list includes first the local domain, then its parent domains with at least 2 name components (longest first). 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 there is only one component remaining from the local domain. The search path can be changed from the default by a system-wide configuration file (see resolver(5)). SEE ALSO
gethostbyname(3), resolver(5), mailaddr(7), named(8) COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2010-11-07 HOSTNAME(7)
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