☰

寻找匹配的“”时出现意外的 EOF

tag-icon • tag-icon bash shell-script hadoop
寻找匹配的“”时出现意外的 EOF

我正在尝试使用 cygwin 配置 hadoop ..这是我第一次使用 unix 环境，但在配置 hadoop-env.sh 时出现此 EOF 错误

# 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.

# Set Hadoop-specific environment variables here.

# The only required environment variable is JAVA_HOME.  All others are
# optional.  When running a distributed configuration it is best to
# set JAVA_HOME in this file, so that it is correctly defined on
# remote nodes.

# The java implementation to use.
export JAVA_HOME=${"C:\Java\"}

# The jsvc implementation to use. Jsvc is required to run secure datanodes
# that bind to privileged ports to provide authentication of data transfer
# protocol.  Jsvc is not required if SASL is configured for authentication                 of
# data transfer protocol using non-privileged ports.
#export JSVC_HOME=${JSVC_HOME}

export HADOOP_CONF_DIR=${HADOOP_CONF_DIR:-"/etc/hadoop"}

# Extra Java CLASSPATH elements.  Automatically insert capacity-scheduler.
for f in $HADOOP_HOME/contrib/capacity-scheduler/*.jar; do
  if [ "$HADOOP_CLASSPATH" ]; then
    export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:$f
  else
    export HADOOP_CLASSPATH=$f
  fi
done

# The maximum amount of heap to use, in MB. Default is 1000.
#export HADOOP_HEAPSIZE=
#export HADOOP_NAMENODE_INIT_HEAPSIZE=""

# Extra Java runtime options.  Empty by default.
export HADOOP_OPTS="$HADOOP_OPTS -Djava.net.preferIPv4Stack=true"

# Command specific options appended to HADOOP_OPTS when specified
export HADOOP_NAMENODE_OPTS="-        Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS} -    Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender}     $HADOOP_NAMENODE_OPTS"
export HADOOP_DATANODE_OPTS="-Dhadoop.security.logger=ERROR,RFAS     $HADOOP_DATANODE_OPTS"

export HADOOP_SECONDARYNAMENODE_OPTS="-Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS} -    Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender}     $HADOOP_SECONDARYNAMENODE_OPTS"

export HADOOP_NFS3_OPTS="$HADOOP_NFS3_OPTS"
export HADOOP_PORTMAP_OPTS="-Xmx512m $HADOOP_PORTMAP_OPTS"

# The following applies to multiple commands (fs, dfs, fsck, distcp etc)
export HADOOP_CLIENT_OPTS="-Xmx512m $HADOOP_CLIENT_OPTS"
#HADOOP_JAVA_PLATFORM_OPTS="-XX:-UsePerfData $HADOOP_JAVA_PLATFORM_OPTS"

# On secure datanodes, user to run the datanode as after dropping     privileges.
# This **MUST** be uncommented to enable secure HDFS if using privileged     ports
# to provide authentication of data transfer protocol.  This **MUST NOT** be
# defined if SASL is configured for authentication of data transfer protocol
# using non-privileged ports.
export HADOOP_SECURE_DN_USER=${HADOOP_SECURE_DN_USER}

# Where log files are stored.  $HADOOP_HOME/logs by default.
#export HADOOP_LOG_DIR=${HADOOP_LOG_DIR}/$USER

# Where log files are stored in the secure data environment.
export HADOOP_SECURE_DN_LOG_DIR=${HADOOP_LOG_DIR}/${HADOOP_HDFS_USER}


# The directory where pid files are stored. /tmp by default.
# NOTE: this should be set to a directory that can only be written to by 
#       the user that will run the hadoop daemons.  Otherwise there is the
#       potential for a symlink attack.
export HADOOP_PID_DIR=${HADOOP_PID_DIR}
export HADOOP_SECURE_DN_PID_DIR=${HADOOP_PID_DIR}

# A string representing this instance of hadoop. $USER by default.
export HADOOP_IDENT_STRING=$USER

这是错误

/home/mahmoud/hadoop-2.7.1/etc/hadoop/hadoop-env.sh: line 62: unexpected EOF     while looking for matching `"'
/home/mahmoud/hadoop-2.7.1/etc/hadoop/hadoop-env.sh: line 87: syntax error: unexpected end of file

预先感谢您的帮助

答案1

引用看起来通常没问题，但您可能会遇到此行的问题：

export JAVA_HOME=${"C:\Java\"}

的第一个用法"没有转义，而第二个则可以。该'\'角色充当逃脱在 shell 脚本中，更改以下字符的含义。 shell 无法判断您可能打算提供尾随反斜杠，例如在 Cygwin 或 MinGW 端口中。如果你做过，将每个反斜杠加倍就是执行此操作的方法。

需要检查的事情：您的运行时是否会将正斜杠转换为反斜杠，例如，以安抚底层 Windows 系统。如果可以的话，这将使脚本更容易使用。

发表评论，在

export JAVA_HOME=${"C:\Java\"}

和没有帮助${。}您只需做所需的事情

export JAVA_HOME="C:\\Java\\"

'${and '}分隔参数扩展。原则上，您可以在花括号内执行替换，例如，将正斜杠更改为反斜杠：

FORWARD_HOME='C:/Java/'
export JAVA_HOME=${FORWARD_HOME//\//\\}

进一步阅读：

相关内容