$ECHO "test : set compression level with environment variable ZSTD_CLEVEL"
ZSTD_CLEVEL=12 $ZSTD -f tmp # positive compression level
ZSTD_CLEVEL=-12 $ZSTD -f tmp # negative compression level
-ZSTD_CLEVEL=+12 $ZSTD -f tmp # valid: verbose '+' sign
+ZSTD_CLEVEL=+12 $ZSTD -f tmp # valid: verbose '+' sign
ZSTD_CLEVEL= $ZSTD -f tmp # empty env var, warn and revert to default setting
ZSTD_CLEVEL=- $ZSTD -f tmp # malformed env var, warn and revert to default setting
ZSTD_CLEVEL=a $ZSTD -f tmp # malformed env var, warn and revert to default setting
ZSTD_CLEVEL=3a7 $ZSTD -f tmp # malformed env var, warn and revert to default setting
ZSTD_CLEVEL=50000000000 $ZSTD -f tmp # numeric value too large, warn and revert to default setting
$ECHO "test : override ZSTD_CLEVEL with command line option"
-ZSTD_CLEVEL=12 $ZSTD --fast=3 -f tmp # overridden by command line option
+ZSTD_CLEVEL=12 $ZSTD --fast=3 -f tmp # overridden by command line option
$ECHO "test : compress to stdout"
$ZSTD tmp -c > tmpCompressed
$ZSTD tmp --stdout > tmpCompressed # long command format
$ZSTD -q tmpro && die "should have refused to overwrite read-only file"
$ZSTD -q -f tmpro
$ECHO "test: --no-progress flag"
-$ZSTD tmpro -c --no-progress | $ZSTD -d -o "$INTOVOID" --no-progress
-$ZSTD tmpro -cv --no-progress | $ZSTD -dv -o "$INTOVOID" --no-progress
+$ZSTD tmpro -c --no-progress | $ZSTD -d -f -o "$INTOVOID" --no-progress
+$ZSTD tmpro -cv --no-progress | $ZSTD -dv -f -o "$INTOVOID" --no-progress
rm -f tmpro tmpro.zst
$ECHO "test: overwrite input file (must fail)"
$ZSTD tmp -fo tmp && die "zstd compression overwrote the input file"
$ECHO "test : compress multiple files"
$ECHO hello > tmp1
$ECHO world > tmp2
-$ZSTD tmp1 tmp2 -o "$INTOVOID"
+$ZSTD tmp1 tmp2 -o "$INTOVOID" -f
$ZSTD tmp1 tmp2 -c | $ZSTD -t
$ZSTD tmp1 tmp2 -o tmp.zst
test ! -f tmp1.zst
$ZSTD tmp1 tmp2
$ZSTD -t tmp1.zst tmp2.zst
$ZSTD -dc tmp1.zst tmp2.zst
-$ZSTD tmp1.zst tmp2.zst -o "$INTOVOID"
+$ZSTD tmp1.zst tmp2.zst -o "$INTOVOID" -f
$ZSTD -d tmp1.zst tmp2.zst -o tmp
touch tmpexists
$ZSTD tmp1 tmp2 -f -o tmpexists