36 lines
578 B
Bash
Executable File
36 lines
578 B
Bash
Executable File
#!/bin/sh
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SEDLIST="/usr/bin/sed /bin/sed sed gnused gsed"
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for SED in $SEDLIST
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do
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if ! test -x $SED ; then
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SED=$(which $SED 2> /dev/null)
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if ! test -x "$SED" > /dev/null ; then
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SED=""
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continue
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fi
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fi
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tmp=$(mktemp)
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echo "HELLO" > $tmp
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$SED -i -e "s/HELLO/GOODBYE/" $tmp >/dev/null 2>&1
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RESULT=$(cat $tmp)
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if test $? != 0 ; then
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SED=""
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elif test -e ".sedtest-e" ; then
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rm -f ".sedtest-e"
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SED=""
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elif [ "x$RESULT" = "x" ] || [ "$RESULT" != "GOODBYE" ] > /dev/null ;
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then
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SED=""
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fi
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rm -f $tmp
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if [ ! -z "$SED" ] ; then
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break
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fi
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done
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echo $SED
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