58 lines
989 B
Text
58 lines
989 B
Text
binfalse()
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{
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$binfalse || return 1 # normalize return value
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}
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if [ -x /usr/bin/true ]; then
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bintrue=/usr/bin/true
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elif [ -x /bin/true ]; then
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bintrue=/bin/true
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else
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bintrue=true
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fi
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if [ -x /usr/bin/false ]; then
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binfalse=/usr/bin/false
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elif [ -x /bin/false ]; then
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binfalse=/bin/false
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else
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binfalse=true
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fi
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shopt -s lastpipe
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unset foo bar
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echo a b c | read foo
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echo after 1: foo = $foo
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unset tot
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declare -i tot
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printf "%d\n" 1 2 3 | while read foo; do tot+=$foo; done
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echo after 2: tot = $tot
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unset bar
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echo g h i | bar=7
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echo after: $bar
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unset foo last
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printf "%s\n" a b c | while read foo; do last=$foo; done
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echo last = $last
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exit 142 | false
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echo $? -- ${PIPESTATUS[@]}
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true | false | $bintrue
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echo $? -- ${PIPESTATUS[@]}
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true | $bintrue | false
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echo $? -- ${PIPESTATUS[@]}
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set -o pipefail
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true | $bintrue | false
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echo $? -- ${PIPESTATUS[@]}
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true | binfalse | true
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echo $? -- ${PIPESTATUS[@]}
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set +o pipefail
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${THIS_SH} ./lastpipe1.sub
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echo lastpipe1.sub returns $?
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