Expand shell variables in sed scripts

expanded_script=$(eval "echo \"$(cat ${sed_script_file})\"") && sed -e "${expanded_script}" your_input_file
With this command you can use shell variables inside sed scripts. This is useful if the script MUST remain in an external file, otherwise you can simply use an inline -e argument to sed.

-1
2009-05-07 14:21:14

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Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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