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jmpolom/re.md

Last active October 4, 2021 03:34
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Capture kernel IP address boot argument
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re.md

search generally for an ip= kernel argument. if one does not exist, add it.

r = re.compile(r'(?P<grub_cmdline>^GRUB_CMDLINE_LINUX=(?!.*?ip=)\"[^\"]*?\"$)')

search for an exact match; if none found isolate an existing ip= kernel argument for removal.

r = re.compile(r'^(?P<grub_cmdline_1>GRUB_CMDLINE_LINUX=(?!.*?ip=192.168.1.21::192.168.1.254:255.255.255.0:::)\"[^\"]*?)\s?(?:ip=\S+)\s?(?P<grub_cmdline_2>[^\"]+\")$')

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