sed with a variable Post: 302204452

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Hi Friends in sed whether we can use variable.like the following expression. sed -i 's/ABC/$var/g' filename I am using Kernel 2.6.18-194.11.1.el5 RedHat linux. I have tried sed -i 's/ABC/"$var"/g' filename, still not working.:( Please help. Thanks in advance Joy

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Hello i would like to interpret a variable in this command cnt=3 sed -n '${cnt}p' file.txt sed: 0602-403 `${cnt}`p is not a recognized function. can you help me please ? thanks

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version=git release=r8 echo lp-testsuite-git-r8.x86_64.rpm |sed -e "s/-$version-$release.*//g" I want to get lp-testsuite what's wrong with me ?

LEARN ABOUT HPUX

setuname

setuname(1M)															      setuname(1M)

NAME

       setuname - change machine information

SYNOPSIS

       name] node]

DESCRIPTION

       The command is used to modify the value for system name and/or the node name by using the appropriate option(s).

       The  command attempts to change the parameter values in both the running kernel and the system configuration to cross reboots.  A temporary
       change affects only the running kernel.

   Options
       The command supports the following options:

	      Changes the system name (for example, HP-UX) in the
			     field of the structure where name is the new system name and consists of  alphanumeric  characters  and  the  special
			     characters dash, underbar, and dollar sign.

	      Changes the name in the
			     field of the structure where node specifies the new node name and consists of alphanumeric characters and the special
			     characters dash, underbar, and dollar sign.

	      Signifies a temporary change.
			     The change will not survive a reboot.

       Either or both of the or options must be given when invoking

       The size of the name and node is limited to characters.	is defined in Only users having appropriate privileges can use this command.

EXAMPLES

       To permanently change the system name to and the node name to issue the following command:

       To temporarily change the system name to and the node name to issue the following command:

WARNINGS

       Setting a nodename of more than 8 bytes is possible only with the appropriate configuration options enabled.  It  is  strongly  recommended
       that  all  related  documentation  be  completely  understood before setting a larger node name.  A node name larger than 8 bytes can cause
       anomalous or incorrect behavior in applications which use the command or the system function to access the name.

SEE ALSO

       uname(1), uname(2), nodehostnamesize(5).

																      setuname(1M)

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