35 lines
1.3 KiB
Text
35 lines
1.3 KiB
Text
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# post bash-4.3 changes to how command -p works (avoid modifying $PATH)
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: ${TMPDIR=/tmp}
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xpath=/usr/local/bin:/usr/GNU/bin:/usr/bin:/bin:.
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# set a value of PATH we can test for; versions of bash up to and including
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# bash-4.3 would set $PATH while running command -p
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PATH=$xpath
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export PATH
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command -p sh -c 'echo $PATH'
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PATH=${TMPDIR}
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command -pv cat >/dev/null || echo "cannot find cat using standard path"
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command -p cat < /dev/null
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#hash
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PATH=$xpath
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command -pv cat >/dev/null || echo "cannot find cat using xpath"
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PATH=$TMPDIR command -pv cat >/dev/null || echo "cannot find cat using standard path with PATH=\$TMPDIR"
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PATH= command -pv cat >/dev/null || echo "cannot find cat using standard path with empty \$PATH"
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PATH=$TMPDIR command -v cat >/dev/null || echo "cannot find cat in \$TMPDIR"
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PATH= command -v cat >/dev/null || echo "cannot find cat with empty \$PATH"
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echo PATH = $PATH
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hash cat
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PATH=$xpath
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PATH=$TMPDIR command -pv cat >/dev/null || echo "cannot find cat using stdpath with hash"
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PATH= command -pv cat >/dev/null || echo "cannot find cat using stdpath with hash"
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PATH=$TMPDIR command -v cat >/dev/null || echo "cannot find cat in \$TMPDIR with hash"
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PATH= command -v cat >/dev/null || echo "cannot find cat with empty \$PATH with hash"
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echo PATH = $PATH
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