tr-rejects-wrong-class

来自「busybox最新版的源码:学习和应用的好东东,多的不说了,大家看后再说吧」· 代码 · 共 20 行

echo t12esting | tr -d '[[:alpha:]]' > logfile.gnu
echo t12esting | tr -d '[:alpha:]'  >> logfile.gnu
echo t12esting | tr -d '[[:alpha:]' >> logfile.gnu
echo t12esting | tr -d '[[:alpha:' >> logfile.gnu
echo t12esting | tr -d '[[:alpha' >> logfile.gnu
echo t12esting | tr -d '[:alpha:]' >> logfile.gnu
echo t12esting | tr -d '[:alpha:' >> logfile.gnu
echo t12esting | tr -d '[:alpha' >> logfile.gnu

echo t12esting | busybox tr -d '[[:alpha:]]' > logfile.bb
echo t12esting | busybox tr -d '[:alpha:]'  >> logfile.bb
echo t12esting | busybox tr -d '[[:alpha:]' >> logfile.bb
echo t12esting | busybox tr -d '[[:alpha:' >> logfile.bb
echo t12esting | busybox tr -d '[[:alpha' >> logfile.bb
echo t12esting | busybox tr -d '[:alpha:]' >> logfile.bb
echo t12esting | busybox tr -d '[:alpha:' >> logfile.bb
echo t12esting | busybox tr -d '[:alpha' >> logfile.bb

diff -u logfile.gnu logfile.bb