bash Versions

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This book is relevant to all versions of bash, although older versions lack some of the features of the most recent version.[1] You can easily find out which version you are using by typing echo $BASH_VERSION. The earliest public version of bash was 1.0, and the most recent is 3.0 (released in July 2004). If you have an older version, you might like to upgrade to the latest one. Chapter 12 shows you how to go about it.

[1] Throughout this book we have clearly marked with footnotes the features that are not present in the earlier versions.

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    Learning the bash Shell
    Learning the bash Shell: Unix Shell Programming (In a Nutshell (OReilly))
    ISBN: 0596009658
    EAN: 2147483647
    Year: 2005
    Pages: 139

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