shell script samples for studying loops and creating removing folders/files

GenerateFiles.sh

LOGIN_FILE="login"
space="        "

for i in `seq 1 10`;
do
  CURR_FILE="$LOGIN_FILE""$i"	
  rm $CURR_FILE 2> /dev/null
  touch $CURR_FILE
  cat header.in | tr -d '\n' >> $CURR_FILE
  touch temp.in
  printf %s%s "Cli$i" "${space:${#i}+3}"  >> temp.in  
  cat temp.in | tr -d '\n' >> $CURR_FILE
  rm temp.in
done

ShellScript1.sh

#!/bin/bash

clear

_DEBUG="on"

function DEBUG()
{
 [ "$_DEBUG" == "on" ] &&  $@
}

if [ $# -ne 1 ];then
  echo "Please pass the version number as the first parameter of the script"
  exit 1
fi

declare -a comp_names_arr=(
"LSEDM_SYNAPSE_GW"
"LSEDM_SOLA_GW"
"LSEDM_RTF_GW"
"LSEDM_EOD"
"LSEDM_MonitorServer"
)

THIS_DIR=$PWD
SVN_IP=10.124.125.185
BINARY_LOCATION="dist/Release/GNU-Linux-x86"
BIN_FOLDER="bin"
CONFIG_FOLDER="config"
SVN_RELEASE_LOCATION="https://subversion.lseg.stockex.local/svn/ClearingGateway/CGTWY_RITA/branches/Drop2_beta/"
INSTALLATION_DIR="LSEDM_CGTWY"
COMMON_FILES="CommonFiles"
INSTALLER="Installer"
SHELL_SCRIPTS="ShellScripts"

idx=0

INSTALLATION_DIR=$INSTALLATION_DIR"_"$1
mkdir $INSTALLATION_DIR
cd $INSTALLATION_DIR
echo $1 > version.txt

for i in "${comp_names_arr[@]}"
do
   echo "Checking out component $i"
   mkdir -p $i
   cd $i
   rm -rf *
   svn_modified_path=$SVN_RELEASE_LOCATION$i
   echo $svn_modified_path
   svn_modified_path=${svn_modified_path/subversion.lseg.stockex.local/$SVN_IP}
   svn_modified_path=$svn_modified_path" ."
   svn checkout $svn_modified_path
   if [ $? -eq 0 ];then
    make clean
    make
    if [ $? -eq 0 ];then
       echo "Build Successful"
         mkdir bin
          #bin_name=$(echo $i | tr '[:upper:]' '[:lower:]')
          #cp $BINARY_LOCATION/$bin_name bin/"${lsedm_names_arr[idx]}"
          cp $BINARY_LOCATION/* bin/
          mv $BIN_FOLDER ../
          mv $CONFIG_FOLDER ../
          rm -rf *
          rm -rf .dep.inc
          rm -rf .svn
          mv ../$BIN_FOLDER .
          mv ../$CONFIG_FOLDER .
       else
         echo "Build Failed for component $i"
         exit 1
       fi
   else
    echo "Checkout failed for $i"
    exit 1
   fi
   cd ..
   let idx++;
done

svn_modified_path=$SVN_RELEASE_LOCATION$COMMON_FILES
echo $svn_modified_path
svn_modified_path=${svn_modified_path/subversion.lseg.stockex.local/$SVN_IP}
svn checkout $svn_modified_path
if [ $? -ne 0 ];then
   echo "Checkout failed for $COMMON_FILES"
   exit 1
fi

#copy cdc configs in componenets to CommonFiles folder
for i in "${comp_names_arr[@]}"
do
   if [ -d "$i" ]; then
     countfiles=$(ls -1 "$i"/config/*.cgc 2>/dev/null | wc -l)     
     if [ $countfiles != 0 ]; then          
       echo "Moving all cgc files in $i/config folder to CommonFiles" 
       mv "$i"/config/*.cgc CommonFiles
       if [ $? -ne 0 ];then
        echo "Moving cgc file(s) to CommonFiles folder failed"
        exit 1
       fi
     fi
   fi
done

svn_modified_path=$SVN_RELEASE_LOCATION$SHELL_SCRIPTS
echo $svn_modified_path
svn_modified_path=${svn_modified_path/subversion.lseg.stockex.local/$SVN_IP}
svn checkout $svn_modified_path
if [ $? -ne 0 ];then
   echo "Checkout failed for $SHELL_SCRIPTS"
   exit 1
fi

svn_modified_path=$SVN_RELEASE_LOCATION$INSTALLER
echo $svn_modified_path
svn_modified_path=${svn_modified_path/subversion.lseg.stockex.local/$SVN_IP}
svn checkout $svn_modified_path
if [ $? -ne 0 ];then
   echo "Checkout failed for $INSTALLER"
   exit 1
fi

mv $INSTALLER/* .
rm -rf $INSTALLER

chmod +x install.sh

cd ..
tar -zvcf $INSTALLATION_DIR".tar.gz" $INSTALLATION_DIR

cd $THIS_DIR

ShellScript2.sh

#!/bin/bash

clear

_DEBUG="on"

function DEBUG()
{
 [ "$_DEBUG" == "on" ] &&  $@
}

declare -a comp_names_arr=(
"LSEDM_SYNAPSE_GW"
"LSEDM_SOLA_GW"
"LSEDM_RTF_GW"
"LSEDM_EOD"
"LSEDM_MonitorServer"
)

declare -a env_variables_arr=(
"LSEDM_MESSAGE_DUMP_PATH"
"LSEDM_MESSAGE_DUMP_ARCHIVAL_PATH"
"LSEDM_STORING_PATH"
"LSEDM_LOG_ARCHIVAL_PATH"
)

ENV_VAR_SET_SCRIPT="envvareditor"
INSTALL_SCRIPT_DIR="install_scripts"

THIS_DIR=$PWD
INSTALLATION_NAME="LSEDM_CGTWY"
VERSION_FILE="version.txt"
BACKUP_DIR="Backups"
INSTALL_DIR="Installation"
COMMON_FILES="CommonFiles"
SHELL_SCRIPTS="ShellScripts"
now=$(date +'%Y%m%d_%H%M%S')

###########################################################################################################
#function to run the environment variable editor

function runEnvEditor(){
	if [ ! -d $INSTALL_SCRIPT_DIR ] ; then
	  echo  -e "ERROR - Missing directory $INSTALL_SCRIPT_DIR "
	  exit 1
	  else
	    cd $INSTALL_SCRIPT_DIR
	    if [ ! -r $ENV_VAR_SET_SCRIPT ] ; then
	      echo  -e "ERROR - Missing $ENV_VAR_SET_SCRIPT \n"
	      exit 1
	    else
	      chmod +x ./$ENV_VAR_SET_SCRIPT
	      ./$ENV_VAR_SET_SCRIPT
	      if [ $? -ne 0 ]; then
		 echo $ENV_VAR_SET_SCRIPT" failed"
	      fi
	      source ~/.bashrc
	      cd ..
	    fi
	fi
}

###########################################################################################################
#function to check whether all environment variables are present

function checkEnvVarsSet()
{
	if [ -z $LSEDM_INSTALLATION_PATH ]; then
	  echo  "LSEDM_INSTALLATION_PATH environment variable is not set"
	  return -1
	fi

	for j in "${env_variables_arr[@]}"
	do
	  if [ -z ${!j} ]; then
	   echo  "${j} environment variable is not set "
	   return -1
	  fi
	done
	return 0
}

###########################################################################################################
#function to backup the existin installation if necessary

function backupExistingInstallation()
{
    line=$(head -n 1 $LSEDM_INSTALLATION_PATH/$INSTALL_DIR/$VERSION_FILE)
    echo "Do you wish to back up version "$line"? Please enter option 1 or 2"
    select yn in "Yes" "No"; do
    case $yn in
        Yes )
	    if [ ! -d "$LSEDM_INSTALLATION_PATH/$BACKUP_DIR" ]; then
	       mkdir -p $LSEDM_INSTALLATION_PATH/$BACKUP_DIR
	    fi
	    cd $LSEDM_INSTALLATION_PATH/$BACKUP_DIR
	    backup_dir=$INSTALLATION_NAME"_"$line"_"$now
	    mkdir $backup_dir
	    cp -rf $LSEDM_INSTALLATION_PATH/$INSTALL_DIR $backup_dir
	    cp -rf $LSEDM_INSTALLATION_PATH/$COMMON_FILES $backup_dir
	    rm -rf  $LSEDM_INSTALLATION_PATH/$INSTALL_DIR/*
	    if [ $? -eq 0 ] ; then
	      
	      cd $LSEDM_INSTALLATION_PATH/$BACKUP_DIR
	      echo -e "\narchiving the backup..."
	      tar -zcf $backup_dir".tar.gz" $backup_dir
		if [  "$?" -eq "0" ]
		then
			echo -e "SUCCESS !\n"
			echo -e "Backup archived as ${backup_dir}.tar.gz in  $LSEDM_INSTALLATION_PATH/$BACKUP_DIR directory. \n" 
			rm -rf $LSEDM_INSTALLATION_PATH/$BACKUP_DIR/$backup_dir
		else
			echo -e "FAILED !\n"
			echo -e "ERROR - Failed to archive the Installation backup directory $backup_dir !\n"
		fi
	      
	    else
	      echo -e "ERROR : Backup failed ! \n"
	      exit 1
	    fi 
    break;;
        No ) break;;
    esac
    done
}

##################  Start of the Exexcution ###############################################################

###########################################################################################################
#if any of Environment variable is not set direct the user to create environment variables

checkEnvVarsSet
if [ "$?" -ne "0" ]
then
	runEnvEditor

fi


#check again envrionement variables are correctly set by the Env var editor

checkEnvVarsSet
if [ "$?" -ne "0" ]
then
	echo -e "ERROR - Environment variables are not correctly set, terminating the installation ! \n"
	exit -1

fi

###########################################################################################################
#getting the installing version
if [ ! -r $VERSION_FILE ]; then
  echo -e "ERROR - The version.txt file is missing, The installation package is not complete ! \n"
  exit 1
fi 

INSTALLING_VERSION=$(head -n 1 $VERSION_FILE)

echo -e "\nInstalling LSEDM_CLEARING_GATEWAY version: $INSTALLING_VERSION .....\n"
echo -e "\nInstalling LSEDM_CLEARING_GATEWAY to : $LSEDM_INSTALLATION_PATH \n"

###########################################################################################################
#Checking write permissions on installation path

mkdir -p $LSEDM_INSTALLATION_PATH/Dummy
if [ $? -ne 0 ]; then
  echo -e "ERROR - Please enable write permission for $LSEDM_INSTALLATION_PATH \n"
  exit 1
fi
rm -rf $LSEDM_INSTALLATION_PATH/Dummy


###########################################################################################################
#creating the directories in installation path. Back if there are any existing ones

if [ ! -d $LSEDM_INSTALLATION_PATH/$INSTALL_DIR ]; then
  mkdir -p $LSEDM_INSTALLATION_PATH/$INSTALL_DIR
  echo $LSEDM_INSTALLATION_PATH/$INSTALL_DIR" created"
else
  if [ ! -r $LSEDM_INSTALLATION_PATH/$INSTALL_DIR/$VERSION_FILE ]; then
        echo "No version file found in ""$LSEDM_INSTALLATION_PATH/$INSTALL_DIR/$VERSION_FILE"", Fresh installation"
  else
	echo -e "Existing installation found..."
	backupExistingInstallation
  fi
fi

###########################################################################################################
#copying component binaries and configs, 

cd $THIS_DIR

for i in "${comp_names_arr[@]}"
  do
    echo "copying "$i "to "$LSEDM_INSTALLATION_PATH/$INSTALL_DIR  
    cp -rf $i $LSEDM_INSTALLATION_PATH/$INSTALL_DIR/
  done

###########################################################################################################
#copying version files, common files and Shell scripts

cp $VERSION_FILE $LSEDM_INSTALLATION_PATH/$INSTALL_DIR

if [ ! -d $LSEDM_INSTALLATION_PATH/$COMMON_FILES ]; then
  mkdir -p $LSEDM_INSTALLATION_PATH/$COMMON_FILES
  echo $LSEDM_INSTALLATION_PATH/$COMMON_FILES" created"
  cp -rf $COMMON_FILES/* $LSEDM_INSTALLATION_PATH/$COMMON_FILES/
else
  echo "CommonFiles folder exists, copying only new files"
  yes n | cp -irf $COMMON_FILES/* $LSEDM_INSTALLATION_PATH/$COMMON_FILES/ 2>/dev/null
fi

cp -rf $SHELL_SCRIPTS $LSEDM_INSTALLATION_PATH/$INSTALL_DIR
cd $LSEDM_INSTALLATION_PATH/$INSTALL_DIR/$SHELL_SCRIPTS/
find . -type f -exec chmod +x '{}' \; 



###########################################################################################################
#creating, log, log arhive, message dump and message dump archive directories

echo -e "\n"

env_var_no=0
for j in "${env_variables_arr[@]}"
do
   if [ ! -d ${!j} ]; then
    echo "Creating directory "${!j}
    mkdir -p ${!j}
   fi
   for i in "${comp_names_arr[@]}"
   do
     mkdir -p ${!j}/${i}
     if [ $env_var_no -eq 0 ] ; then
        echo "Creating directory "${!j}/${i}/incoming
     	mkdir -p ${!j}/${i}/incoming
        echo "Creating directory "${!j}/${i}/outgoing
     	mkdir -p ${!j}/${i}/outgoing 
     fi
   #  echo "${!j}/${comp_names_arr[i]}/outgoing"
   done
   let env_var_no++
done


cd $THIS_DIR

echo -e "\nInstallation successfully completed !\n"