Bash Cookbook

How to do it...

Let's begin our activity as follows:

1. Open a new terminal and start an editor of your choice and create a new script. The following is a code snippet from the script:

#!/bin/bashFILE_TO_TEST=""function permissions() {    echo -e "\nWhat are our permissions on this $2?\n"  if [ -r $1 ]; then     echo -e "[R] Read"   fi  if [ -w $1 ]; then     echo -e     "[W] Write"   fi  if [ -x $1 ]; then     echo -e "[X] Exec"   fi}function file_attributes() {  if [ ! -s $1 ]; then    echo "\"$1\" is empty"   else     FSIZE=$(stat --printf="%s" $1 2> /dev/null)    RES=$?    if [ $RES -eq 1 ]; then      return    else      echo "\"$1\" file size is: ${FSIZE}\""    fi  fi    if [ ! -O $1 ]; then    echo -e "${USER} is not the owner of \"$1\"\n"  fi  if [ ! -G $1 ]; then echo -e "${USER} is not among ...