33 lines
791 B
Markdown
33 lines
791 B
Markdown
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# LOGFOO
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Filter and format logfiles on command line
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## build
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* LUA required ;)
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```
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gcc -I/usr/include/lua5.4 -g logfoo.c -llua5.4 -o logfoo
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```
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## usage
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```
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logfoo <path to lua> <path to logfile>
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```
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### lua
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* the lua needs 2 methods
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* `function filter (line)` returns boolean; true -> don't print line
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* `function format (line)` returns string
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* example:
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```lua
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function filter (line)
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-- only lines containing text "Unknown kernel..."
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return line:find("Unknown kernel command line parameters") == nil
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end
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function format (line)
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-- red, bold, underline text "IMAGE"
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line = line:gsub("(IMAGE)", color("%1", "31;1;4"))
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-- green text "gentoo"
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line = line:gsub("(gentoo)", color("%1", "32"))
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-- only text between "
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return line:match("\"([^\"]+)\"")
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end
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```
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