To arguments to utility which do not contain replstr, and furthermore, no replacement will be done on utility itself. The resulting arguments, after replacement is done, will not be allowed to grow beyond 255 bytes this is implemented by con-Ĭatenating as much of the argument containing replstr as possible, to the constructed arguments to utility, up to 255 bytes. (a quick trip to man sorted that out).Įxecute utility for each input line, replacing one or more occurrences of replstr in up to replacements (or 5 if no -R flag is specified) arguments to utility It turns out that MacOS xargs like -I instead of -i. While trying to automated a grep -> sed pipeline, I encountered this error: egrep -rl 'version 0.0.1' src/* | xargs sed -i 's/version 0.0.1/version 0.0.1c/g' illegal option - i ![]() Xargs can be an amazingly powerful ally when automating commands line functionality, wrapping the reference command with auto-substitutions using the meta-character. Specifically in the this case xargs and sed. ![]() As with many MacOS’isms, you have to change up your old school LINUX to work with the slightly different command syntax of the MacOS tools.
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