cli-sedHow to use sed to modify Kubernetes configuration files from the command line?

The sed command can be used to modify Kubernetes configuration files from the command line. It is a powerful command-line utility for manipulating text.

To use sed to modify Kubernetes configuration files, the following syntax can be used:

sed -i 's/<old-text>/<new-text>/g' <config-file-name>

For example, to replace the string cluster.local with example.com in the file config.yaml:

sed -i 's/cluster.local/example.com/g' config.yaml

The parameters used in the command are as follows:

• -i: This option tells sed to edit the file in-place.
• s: This parameter tells sed to search for a string and replace it with another string.
• <old-text>: This is the string that will be replaced.
• <new-text>: This is the string that will be used to replace the old string.
• <config-file-name>: This is the name of the configuration file to be modified.

For more information about using sed to modify Kubernetes configuration files, please refer to the following links:

• Using sed to modify Kubernetes configuration files
• sed - An Introduction and Tutorial by Bruce Barnett

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