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Full Discussion: Need bash script to use a sed command as a variable
Top Forums Shell Programming and Scripting Need bash script to use a sed command as a variable Post 303038031 by Scrutinizer on Thursday 22nd of August 2019 01:53:54 AM
Old 08-22-2019
Note that with standard sed (non-GNU) there needs to be a ; before the trailing }:
Code:
ip=$(sed -n '/inet */{s///p;q;}' config.boot)

or we can avoid the braces by using negation style:
Code:
ip=$(sed '/inet */!d; s///; q' config.boot)

--
Alternatively we can avoid the sub shell / external command altogether with just standard shell:
Code:
until [ "$inet" = inet ]; do
  read inet ip
done < config.boot

--
Note also that these are all naive approaches without knowing what the format of config.boot looks like. Also, if the are more inet configs in the same file, these will only pick the first one indiscriminately.
Last edited by Scrutinizer; 08-22-2019 at 03:16 AM..
 

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LEARN ABOUT X11R4

in.iked

in.iked(1M)						  System Administration Commands					       in.iked(1M)

NAME

       in.iked - daemon for the Internet Key Exchange (IKE)

SYNOPSIS

       /usr/lib/inet/in.iked [-d] [-f filename] [-p level]

       /usr/lib/inet/in.iked -c [-f filename]

DESCRIPTION

       in.iked performs automated key management for IPsec using the Internet Key Exchange (IKE) protocol.

       in.iked implements the following:

	 o  IKE authentication with either pre-shared keys, DSS signatures, RSA signatures, or RSA encryption.

	 o  Diffie-Hellman key derivation using either 768, 1024, or 1536-bit public key moduli.

	 o  Authentication protection with cipher choices of DES, Blowfish, or 3DES, and hash choices of either HMAC-MD5 or HMAC-SHA-1. Encryption
	    in in.iked is limited to the IKE authentication and key  exchange.	 See  ipsecesp(7P)  for  information  regarding  IPsec	protection
	    choices.

       in.iked starts at boot time if the /etc/inet/ike/config file exists. See ike.config(4) for the format of this file.

       in.iked listens for incoming IKE requests from the network and for requests for outbound traffic using the PF_KEY socket. See pf_key(7P).

       in.iked has two support programs that are used for IKE administration and diagnosis: ikeadm(1M) and ikecert(1M).

       The  SIGHUP  signal  causes  the IKE daemon to read /etc/inet/ike/config and reload the certificate database. SIGHUP is equivalent to using
       ikeadm(1M) to read the /etc/inet/ike/config file as a rule, for example:

       example# ikeadm read rule /etc/inet/ike/config

OPTIONS

       The following options are supported:

       -c	       Check the syntax of a configuration file.

       -d	       Use debug mode. The process stays attached to the controlling terminal and produces large amounts of debugging output.

       -f filename     Use filename instead of /etc/inet/ike/config. See ike.config(4) for the format of this file.

       -p level        Specify privilege level (level). This option sets how much ikeadm(1M) invocations can change or observe about  the  running
		       in.iked.

		       Valid levels are:

		       0	Base level

		       1	Access to preshared key info

		       2	Access to keying material

		       If -p is not specified, level defaults to 0.

SECURITY

       This  program  has sensitive private keying information in its image. Care should be taken with any core dumps or system dumps of a running
       in.iked daemon, as these files contain sensitive keying information. Use the  coreadm(1M)  command  to  limit  any  corefiles  produced	by
       in.iked.

FILES

       /etc/inet/ike/config

       /etc/inet/secret/ike.privatekeys/*

	   Private keys. A private key must have a matching public-key certificate with the same filename in /etc/inet/ike/publickeys/.

       /etc/inet/ike/publickeys/*

	   Public-key certificates. The names are only important with regard to matching private key names.

       /etc/inet/ike/crls/*

	   Public key certificate revocation lists.

       /etc/inet/secret/ike.preshared

	   IKE pre-shared secrets for Phase I authentication.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       coreadm(1M), ikeadm(1M), ikecert(1M), ike.config(4), attributes(5), ipsecesp(7P)

       Harkins, Dan and Carrel, Dave. RFC 2409, Internet Key Exchange (IKE). Network Working Group. November 1998.

       Maughan,  Douglas,  Schertler,  M., Schneider, M., Turner, J. RFC 2408, Internet Security Association and Key Management Protocol (ISAKMP).
       Network Working Group. November 1998.

       Piper, Derrell, RFC 2407, The Internet IP Security Domain of Interpretation for ISAKMP. Network Working Group. November 1998.

SunOS 5.10							    11 Jun 2003 						       in.iked(1M)
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