I find the following. But this is for string according to the highlighted word "Substring Expansion".
${parameter:offset:length} Substring Expansion. Expands to up to length characters of .... The following description is actually for array. Therefore, I suggest to put this into the array section and add references between the two sections. ..................... If parameter is @, the result is length positional parameters beginning at offset. If parameter is an indexed array name sub\u2010 ..... On Thu, Jul 8, 2010 at 9:27 PM, Peng Yu <pengyu...@gmail.com> wrote: > Hi, > > array=(a b c) > echo ${arr...@]:1:2} > > > I'm looking for the document for the above usage. I checked the Arrays > section of man bash, but I don't see a description of such usage. I > also searched man bash with [0-9]+:[0-9]+. But I still don't find a > description. Could anybody let me know where this is documented? > > -- > Regards, > Peng > -- Regards, Peng