SED help

[Scott Ruckh]

I would like to do the following SED replacement, but I am not having much
luck and thought I would ask for help.

TEXT1="some-text a.b.c.d a.b.c.d a.b.c.d a.b.c.d"
TEXT2="some-text 1.1.1.1 2.2.2.2 3.3.3.3 4.4.4.4"

sed -i "s/$TEXT1/$TEXT2/g" $INFILE

;a.b.c.d are unknown IP Addresses.

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I have tried this:

TEXT2="some-text 1.1.1.1 2.2.2.2 3.3.3.3 4.4.4.4"
IP_REGEX="\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][$
TEXT1="^some-text[ \t]${IP_REGEX}[ \t]${IP_REGEX}[ \t]${IP_REGEX}[
\t]${IP_REGEX}"

sed -i "s/$TEXT1/$TEXT2/g" $INFILE

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What I have does not work, and I need some assistance.

Your help is appreciated.

Thanks.