Public bug reported:
There has been some change between Precise and Trusty that lets this code
snippet behave differently:
Precise:
$ unset f ; f=abcd ; first_char=${f[@]:0:1} ; echo $first_char
a
Trusty
$ unset f ; f=abcd ; first_char=${f[@]:0:1} ; echo $first_char
\001
The solution is to use ${f:0:1} but nevertheless the result on Trusty seems
completely wrong. Where does the \001 even come from?!
** Affects: bash (Ubuntu)
Importance: Undecided
Status: New
** Tags: trusty
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https://bugs.launchpad.net/bugs/1381567
Title:
Bash returns unexpected character \001 on string operation
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