tag 19243 notabug thanks On 12/01/2014 10:56 AM, Chema F. Ledesma wrote: > Hello, > > I just wanted to report a bug i think i hava found on the echo comand. > > If you execute echo "!!!!!!!!!!!!!!!!!!!!!!!!" it does something strange > repeating the last command before echo comand.
Thanks for the report. However, this is not a bug in 'echo', but a feature of your shell. At least bash has a notion of history expansion, where double-quoted ! is a shortcut for injecting previously-typed commands from your history into the current command invocation. Read 'man bash' and search for "history" for details. History expansion occurs BEFORE 'echo' sees its command line arguments. You'd get the same effect with ANY OTHER COMMAND, when given the same argument. Thus, this is not a bug in coreutils, and I'm closing this report, although you should feel free to comment with any further questions. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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