38 lines
832 B
Bash
Executable file
38 lines
832 B
Bash
Executable file
#!/bin/sh
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# $LynxId: install-lss.sh,v 1.2 2021/01/07 00:32:39 tom Exp $
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# install lynx.lss, ensuring the old config-file is saved to a backup file.
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#
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# $1 = install program
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# $2 = file to install
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# $3 = where to install it
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PRG="$1"
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SRC=$2
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DST=$3
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if test -f "$DST" ; then
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# See if we have saved this information before
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if cmp -s "$SRC" "$DST"
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then
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echo "... installed $DST would not be changed"
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else
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NUM=1
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while test -f "${DST}-${NUM}"
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do
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if cmp -s "$SRC" "${DST}-${NUM}"
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then
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break
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fi
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NUM=`expr "$NUM" + 1`
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done
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if test ! -f "${DST}-${NUM}"
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then
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echo "... saving old config as ${DST}-${NUM}"
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mv "$DST" "${DST}-${NUM}" || exit 1
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fi
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echo "** installing $SRC as $DST"
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eval "$PRG" "$SRC" "$DST" || exit 1
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fi
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else
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echo "** installing $SRC as $DST"
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eval "$PRG" "$SRC" "$DST" || exit 1
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fi
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