238 lines
3.5 KiB
Text
Executable file
238 lines
3.5 KiB
Text
Executable file
# first, let's start with the basics
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recho "$@"
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recho "$*"
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recho $@
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recho $*
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set a b
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recho "$*"
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# If IFS is null, the parameters are joined without separators
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IFS=''
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recho "$*"
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# If IFS is unset, the parameters are separated by spaces
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unset IFS
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recho "${*}"
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recho "$@"
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recho $@
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IFS='/'
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set bob 'tom dick harry' joe
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set $*
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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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set bob 'tom dick harry' joe
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set ${*}
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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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set bob 'tom dick harry' joe
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set $@
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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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set bob 'tom dick harry' joe
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set ${@}
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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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set bob 'tom dick harry' joe
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set $*
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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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set bob 'tom dick harry' joe
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set $@
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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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set bob 'tom dick harry' joe
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set $*
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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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set bob 'tom dick harry' joe
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set $@
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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 "$*"
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set bob 'tom dick harry' joe
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set "$*"
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recho $#
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recho $1
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recho $2
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recho $3
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set bob 'tom dick harry' joe
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set "$@"
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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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# POSIX.2 says these should both expand the positional parameters
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# to multiple words
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set a b c d e
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IFS=""
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recho $@
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recho "$@"
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# this example is straight from the POSIX.2 rationale
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set foo bar bam
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recho "$@"
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recho "$*"
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unset IFS
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recho "$@"
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recho $@
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recho "$*"
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IFS=:
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# special variables
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set -- 1 2 3 4 5 6 7 8 9 10
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bar=${*}
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foo=$*
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echo foo = "$foo"
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echo bar = "$bar"
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foo1=$@
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bar1=${@}
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echo foo1 = "$foo1"
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echo bar1 = "$bar1"
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foo2="$*"
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bar2="${*}"
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echo foo2 = "$foo2"
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echo bar2 = "$bar2"
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eval foo3='$*' bar3='${*}'
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echo foo3 = "$foo3"
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echo bar3 = "$bar3"
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case $* in
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*\:*) echo ok 1;;
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*) echo bad 1;;
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esac
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case $@ in
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*\:*) echo bad 2;;
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*) echo ok 2;;
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esac
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case "$*" in
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*\:*) echo ok 3;;
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*) echo bad 3;;
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esac
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case "$@" in
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*\:*) echo bad 4;;
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*) echo ok 4;;
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esac
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IFS=$' \t\n'
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bar=${*}
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foo=$*
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echo foo = "$foo"
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echo bar = "$bar"
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foo1=$@
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bar1=${@}
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echo foo1 = "$foo1"
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echo bar1 = "$bar1"
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foo2="$*"
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bar2="${*}"
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echo foo2 = "$foo2"
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echo bar2 = "$bar2"
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eval foo3='$*' bar3='${*}'
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echo foo3 = "$foo3"
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echo bar3 = "$bar3"
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case $* in
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*\ *) echo ok 1;;
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*) echo bad 1;;
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esac
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case $@ in
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*\ *) echo ok 2;;
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*) echo bad 2;;
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esac
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case "$*" in
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*\ *) echo ok 3;;
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*) echo bad 3;;
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esac
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case "$@" in
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*\ *) echo ok 4;;
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*) echo bad 4;;
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esac
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# tests for special expansion of "$*" and "${array[*]}" when used with other
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# expansions -- bugs through bash-2.05b
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${THIS_SH} ./dollar-star1.sub
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# tests for expansion of "$@" on rhs of things like ${param:+word}. Bugs
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# though bash-2.05b
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${THIS_SH} ./dollar-at1.sub
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# tests for expansion of other variables in double-quoted strings containing
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# $@. Bugs through bash-2.05b
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${THIS_SH} ./dollar-at2.sub
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# tests for various expansions of $* in different contexts -- word split,
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# no splitting, etc. when $IFS is NUL
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${THIS_SH} ./dollar-star2.sub
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# tests for expansions of "${array[*]}" and "${array[@]}" when $IFS is not the
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# default and the array contains null elements
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${THIS_SH} ./dollar-star3.sub
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# test for set -u and expansions of $@ when there are no positional parameters
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${THIS_SH} ./dollar-at3.sub
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# test for set -u and expansions of $* when there are no positional parameters
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${THIS_SH} ./dollar-star4.sub
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# tests for expansions of $* when IFS is null
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${THIS_SH} ./dollar-star5.sub
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exit 0
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