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Full Discussion: Delete white space using sed
Top Forums Shell Programming and Scripting Delete white space using sed Post 302524338 by anil8103 on Monday 23rd of May 2011 05:50:56 AM
Old 05-23-2011
Delete white space using sed

Hi ,
I have a file with contents as below

group1 = aaaaa, bbbbb, ccccc, aaa
group2=aaa, bbbbb, ccccc, aaaaa
group3 = bbbbb, aaa, ccccc, aaaaa
group4 = bbbbb, aaa,ccccc, aaaaa

I want to search for "aaa" and the output should be as below
group1 = aaaaa, bbbbb, ccccc
group2= bbbbb, ccccc, aaaaa
group3 = bbbbb, ccccc, aaaaa
group4 = bbbbb, ccccc, aaaaa

I used as below sed "s/\baaa\b//g"
i also need to delete "aaa" whitespace and "," or else whitespace "aaa" and ","
I am unable to find exact match of these combinations.

Pls help me

Rgds
Anil.G
 

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DNSSEC-DSFROMKEY(8)						       BIND9						       DNSSEC-DSFROMKEY(8)

NAME
dnssec-dsfromkey - DNSSEC DS RR generation tool SYNOPSIS
dnssec-dsfromkey [-v level] [-1] [-2] [-a alg] {keyfile} dnssec-dsfromkey {-s} [-v level] [-1] [-2] [-a alg] [-c class] [-d dir] {dnsname} DESCRIPTION
dnssec-dsfromkey outputs the Delegation Signer (DS) resource record (RR), as defined in RFC 3658 and RFC 4509, for the given key(s). OPTIONS
-1 Use SHA-1 as the digest algorithm (the default is to use both SHA-1 and SHA-256). -2 Use SHA-256 as the digest algorithm. -a algorithm Select the digest algorithm. The value of algorithm must be one of SHA-1 (SHA1) or SHA-256 (SHA256). These values are case insensitive. -v level Sets the debugging level. -s Keyset mode: in place of the keyfile name, the argument is the DNS domain name of a keyset file. Following options make sense only in this mode. -c class Specifies the DNS class (default is IN), useful only in the keyset mode. -d directory Look for keyset files in directory as the directory, ignored when not in the keyset mode. EXAMPLE
To build the SHA-256 DS RR from the Kexample.com.+003+26160 keyfile name, the following command would be issued: dnssec-dsfromkey -2 Kexample.com.+003+26160 The command would print something like: example.com. IN DS 26160 5 2 3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0 C5EA0B94 FILES
The keyfile can be designed by the key identification Knnnn.+aaa+iiiii or the full file name Knnnn.+aaa+iiiii.key as generated by dnssec-keygen(8). The keyset file name is built from the directory, the string keyset- and the dnsname. CAVEAT
A keyfile error can give a "file not found" even if the file exists. SEE ALSO
dnssec-keygen(8), dnssec-signzone(8), BIND 9 Administrator Reference Manual, RFC 3658, RFC 4509. AUTHOR
Internet Systems Consortium COPYRIGHT
Copyright (C) 2008 Internet Systems Consortium, Inc. ("ISC") BIND9 November 29, 2008 DNSSEC-DSFROMKEY(8)
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