53 lines
789 B
Text
53 lines
789 B
Text
# testing various combinations of quoted and unquoted expansions of $@, and
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# whether they generate empty words after expansion
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n() { echo "$#"; }
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n "$@"
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n ${foo-"$@"}
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n "${foo-$@}"
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n ""$@
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n """$@"
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n $(true)$@
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n "$(true)$@"
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n "$(true)$@"
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n "$(true)""$@"
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n $xxx$@
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n "$xxx$@"
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n $xxx"$@"
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n "$xxx""$@"
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recho $xxx"$@"
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echo after 1
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recho "$xxx$@"
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echo after 2
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recho ${foo:-$xxx"$@"}
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echo after 3
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# this is where these things start to differ
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echo same as 1
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recho "${foo:-$xxx"$@"}"
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echo same as 2
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recho "${foo:-$xxx$@}"
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echo null fields
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recho ""$@
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recho """$@"
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echo null fields in rhs
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echo null string with unquoted '$@'
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recho ${foo:-""$@}
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echo null string with quoted '$@'
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recho ${foo:-"""$@"}
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echo assignment
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recho "${foo=$@}"
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echo variable
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recho "$foo"
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echo dollar-at
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recho "${@}"
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