120 lines
1.8 KiB
Text
Executable file
120 lines
1.8 KiB
Text
Executable file
# test the expansion of ${array[@]} and ${array[*]}, both quoted and
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# unquoted. the expansions should be exactly analogous to the
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# expansions of $@ and $* quoted and unquoted
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A=(a b)
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recho "${A[*]}"
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# If IFS is null, the parameters are joined without separators
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IFS=''
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recho "${A[*]}"
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# If IFS is unset, the parameters are separated by spaces
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unset IFS
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recho "${A[*]}"
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recho "${A[@]}"
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recho ${A[@]}
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IFS='/'
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A=(bob 'tom dick harry' joe)
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set ${A[*]}
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recho $#
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recho $1
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recho $2
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recho $3
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A=(bob 'tom dick harry' joe)
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set ${A[*]}
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recho $#
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recho $1
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recho $2
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recho $3
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A=(bob 'tom dick harry' joe)
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set ${A[@]}
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recho $#
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recho $1
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recho $2
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recho $3
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A=(bob 'tom dick harry' joe)
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set ${A[@]}
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recho $#
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recho $1
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recho $2
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recho $3
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# according to POSIX.2, unquoted $* should expand to multiple words if
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# $IFS is null, just like unquoted $@
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IFS=''
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A=(bob 'tom dick harry' joe)
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set "${A[*]}"
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recho $#
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recho $1
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recho $2
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recho $3
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A=(bob 'tom dick harry' joe)
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set ${A[*]}
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recho $#
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recho $1
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recho $2
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recho $3
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A=(bob 'tom dick harry' joe)
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set ${A[@]}
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recho $#
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recho $1
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recho $2
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recho $3
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# if IFS is unset, the individual positional parameters are split on
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# " \t\n" if $* or $@ are unquoted
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unset IFS
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A=(bob 'tom dick harry' joe)
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set ${A[*]}
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recho $#
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recho $1
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recho $2
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recho $3
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A=(bob 'tom dick harry' joe)
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set ${A[@]}
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recho $#
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recho $1
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recho $2
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recho $3
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# but not for "$@" or "$*"
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A=(bob 'tom dick harry' joe)
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set "${A[*]}"
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recho $#
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recho $1
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recho $2
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recho $3
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A=(bob 'tom dick harry' joe)
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set "${A[@]}"
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recho $#
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recho $1
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recho $2
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recho $3
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# these should both expand the value of A to multiple words
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A=(a b c d e)
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IFS=""
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recho ${A[@]}
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recho "${A[@]}"
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# this example is straight from the POSIX.2 rationale and adapted to arrays
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A=(foo bar bam)
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recho "${A[@]}"
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recho "${A[*]}"
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unset IFS
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recho "${A[@]}"
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recho ${A[@]}
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recho "${A[*]}"
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