if [ $# != 1 ] ; then
echo "USAGE: $0 TABNAME"
echo " e.g.: $0 CDR_CALL_20040701"
exit 1;
fi
echo $0
echo $#
加上：set -xv
if [ $# != 1 ] ; then
echo "USAGE: $0 TABNAME"
echo " e.g.: $0 CDR_CALL_20040701"
exit 1;
fi
+ [ 1 != 1 ]
echo $0
+ echo yu
yu
echo $#
+ echo 1
1
if [ $# != 1 ] ; then
echo "USAGE: $0 TABNAME"
echo " e.g.: $0 CDR_CALL_20040701"
exit 1;
fi
+ [ 1 != 1 ]
echo $0
+ echo yu
yu
echo $#
+ echo 1
1
a="zzz"
+ a=zzz
if [ "$a" = "" ]
then
echo $a empty
else
echo $a no empty
fi
+ [ zzz = ]
+ echo zzz no empty
zzz no empty
总结：
1，在程序脚本里面设置:set -xv
2.在命令行里面加上 -xv参数也一样可以调试。