$ bin/hadoop namenode -format error: command not found in cygwin - hadoop

Question

I have been following http://saphanatutorial.com/hadoop-installation-on-windows-7-using-cygwin/ tutorial for hadoop installation in windows7
Everything went fine, however I am facing issues while formatting the name node.
I am failing in executing format command bin/hadoop namenode -format
As soon as I hit this command i get following error:
$ bin/hadoop namenode -format
bin/hadoop: line 2: $'\r': command not found
bin/hadoop: line 17: $'\r': command not found
bin/hadoop: line 18: $'\r': command not found
bin/hadoop: line 56: $'\r': command not found
bin/hadoop: line 58: cd: $'bin\r': No such file or directory
bin/hadoop: line 59: $'\r': command not found
bin/hadoop: line 67: syntax error near unexpected token `$'in\r''
'in/hadoop: line 67: `case "`uname`" in
I followed solution mentioned in export JAVA_HOME with spaces in Cygwin and made required changes in hadoop-env.sh file and systems variable path in computer properties.
Still the issue is not resolved. Could you please let me know where am i going wrong.
PFB the hadoop-env.sh file configuration:
# 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. Required.
export JAVA_HOME="/cygdrive/c/PROGRA~1/Java/jdk1.7.0_80"
# Extra Java CLASSPATH elements. Optional.
# export HADOOP_CLASSPATH=
# The maximum amount of heap to use, in MB. Default is 1000.
# export HADOOP_HEAPSIZE=2000
# Extra Java runtime options. Empty by default.
# export HADOOP_OPTS=-server
# Command specific options appended to HADOOP_OPTS when specified
export HADOOP_NAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_NAMENODE_OPTS"
export HADOOP_SECONDARYNAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_SECONDARYNAMENODE_OPTS"
export HADOOP_DATANODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_DATANODE_OPTS"
export HADOOP_BALANCER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_BALANCER_OPTS"
export HADOOP_JOBTRACKER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_JOBTRACKER_OPTS"
# export HADOOP_TASKTRACKER_OPTS=
# The following applies to multiple commands (fs, dfs, fsck, distcp etc)
# export HADOOP_CLIENT_OPTS
# Extra ssh options. Empty by default.
# export HADOOP_SSH_OPTS="-o ConnectTimeout=1 -o SendEnv=HADOOP_CONF_DIR"
# Where log files are stored. $HADOOP_HOME/logs by default.
# export HADOOP_LOG_DIR=${HADOOP_HOME}/logs
# File naming remote slave hosts. $HADOOP_HOME/conf/slaves by default.
# export HADOOP_SLAVES=${HADOOP_HOME}/conf/slaves
# host:path where hadoop code should be rsync'd from. Unset by default.
# export HADOOP_MASTER=master:/home/$USER/src/hadoop
# Seconds to sleep between slave commands. Unset by default. This
# can be useful in large clusters, where, e.g., slave rsyncs can
# otherwise arrive faster than the master can service them.
# export HADOOP_SLAVE_SLEEP=0.1
# 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 users that are going to run the hadoop daemons. Otherwise there is
# the potential for a symlink attack.
# export HADOOP_PID_DIR=/var/hadoop/pids
# A string representing this instance of hadoop. $USER by default.
# export HADOOP_IDENT_STRING=$USER
# The scheduling priority for daemon processes. See 'man nice'.
# export HADOOP_NICENESS=10