fix example/aishell local/train.sh if condition bug, test=asr (#3146)

examples/aishell/asr0/local/train.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if [ $# -lt 2 ] && [ $# -gt 3 ];then
+if [ $# -lt 2 ] || [ $# -gt 3 ];then
     echo "usage: CUDA_VISIBLE_DEVICES=0 ${0} config_path ckpt_name ips(optional)"
     exit -1
 fi

examples/aishell/asr1/local/train.sh

@@ -17,7 +17,7 @@ if [ ${seed} != 0  ]; then
     echo "using seed $seed & FLAGS_cudnn_deterministic=True ..."
 fi
 
-if [ $# -lt 2 ] && [ $# -gt 3 ];then
+if [ $# -lt 2 ] || [ $# -gt 3 ];then
     echo "usage: CUDA_VISIBLE_DEVICES=0 ${0} config_path ckpt_name ips(optional)"
     exit -1
 fi

examples/aishell/asr3/local/train.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if [ $# -lt 2 ] && [ $# -gt 3 ];then
+if [ $# -lt 2 ] || [ $# -gt 3 ];then
     echo "usage: CUDA_VISIBLE_DEVICES=0 ${0} config_path ckpt_name ips(optional)"
     exit -1
 fi