How to run .sh using Cygwin in windows - windows

Question

I have a file named backup.sh, I have installed and set path variable too. but when i double click backup.sh file its saying something which I don't know. scenario is back mongo db database backup using script in grails.
#!/bin/bash
#
# Michael Mottola
# <mikemottola#gmail.com>
# December 18, 2011
#
# Creates backup files (bson) of all MongoDb databases on a given server.
# Default behaviour dumps the mongo database and tars the output into a file
# named after the current date. ex: 2011-12-19.tar.gz
#
### Set server settings
HOST="localhost"
PORT="27017" # default mongoDb port is 27017
USERNAME=""
PASSWORD=""
# Set where database backups will be stored
# keyword DATE gets replaced by the current date, you can use it in either path below
BACKUP_PATH="Desktop/path/to/backup/directory" # do not include trailing slash
FILE_NAME="DATE" #defaults to [currentdate].tar.gz ex: 2011-12-19.tar.gz
##################################################################################
# Should not have to edit below this line unless you require special functionality
# or wish to make improvements to the script
##################################################################################
# Auto detect unix bin paths, enter these manually if script fails to auto detect
MONGO_DUMP_BIN_PATH="$(which mongodump)"
TAR_BIN_PATH="$(which tar)"
# Get todays date to use in filename of backup output
TODAYS_DATE=`date "+%Y-%m-%d"`
# replace DATE with todays date in the backup path
BACKUP_PATH="${BACKUP_PATH//DATE/$TODAYS_DATE}"
# Create BACKUP_PATH directory if it does not exist
[ ! -d $BACKUP_PATH ] && mkdir -p $BACKUP_PATH || :
# Ensure directory exists before dumping to it
if [ -d "$BACKUP_PATH" ]; then
cd $BACKUP_PATH
# initialize temp backup directory
TMP_BACKUP_DIR="mongodb-$TODAYS_DATE"
echo; echo "=> Backing up Mongo Server: $HOST:$PORT"; echo -n ' ';
# run dump on mongoDB
if [ "$USERNAME" != "" -a "$PASSWORD" != "" ]; then
$MONGO_DUMP_BIN_PATH --host $HOST:$PORT -u $USERNAME -p $PASSWORD --out $TMP_BACKUP_DIR >> /dev/null
else
$MONGO_DUMP_BIN_PATH --host $HOST:$PORT --out $TMP_BACKUP_DIR >> /dev/null
fi
# check to see if mongoDb was dumped correctly
if [ -d "$TMP_BACKUP_DIR" ]; then
# if file name is set to nothing then make it todays date
if [ "$FILE_NAME" == "" ]; then
FILE_NAME="$TODAYS_DATE"
fi
# replace DATE with todays date in the filename
FILE_NAME="${FILE_NAME//DATE/$TODAYS_DATE}"
# turn dumped files into a single tar file
$TAR_BIN_PATH --remove-files -czf $FILE_NAME.tar.gz $TMP_BACKUP_DIR >> /dev/null
# verify that the file was created
if [ -f "$FILE_NAME.tar.gz" ]; then
echo "=> Success: `du -sh $FILE_NAME.tar.gz`"; echo;
# forcely remove if files still exist and tar was made successfully
# this is done because the --remove-files flag on tar does not always work
if [ -d "$BACKUP_PATH/$TMP_BACKUP_DIR" ]; then
rm -rf "$BACKUP_PATH/$TMP_BACKUP_DIR"
fi
else
echo "!!!=> Failed to create backup file: $BACKUP_PATH/$FILE_NAME.tar.gz"; echo;
fi
else
echo; echo "!!!=> Failed to backup mongoDB"; echo;
fi
else
echo "!!!=> Failed to create backup path: $BACKUP_PATH"
fi
its giving --host command not found. updated for later help.

Answer 1

bash FilePath/backup.sh
For example if you have backup.sh file in E:/SohamShetty/Files then you should do like this.
bash E:/SohamShetty/Files/backup.sh

Answer 2

You can run it as :
bash backup.sh
or
chmod +x backup.sh
./backup.sh