| #!/bin/sh |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| # echo stdin to stdout. terminate after <terminateCount> lines |
| USAGE="$0 [<terminateCount>]" |
| |
| #set -x |
| |
| TERM_COUNT=0 |
| if [ $# -gt 0 ]; then |
| TERM_COUNT=$1 |
| shift |
| fi |
| |
| COUNTER=0 |
| while read LINE; do |
| echo $LINE |
| # echo $0 echoing $LINE >/dev/stderr |
| COUNTER=$(($COUNTER+1)) |
| if [ $TERM_COUNT -gt 0 -a $COUNTER -ge $TERM_COUNT ]; then |
| echo $0 TERMINATING after $LINE >/dev/stderr |
| exit 1; |
| fi |
| done |
