Shell Programming and Scripting

#!/bin/bash

if [test -e mybackups]
then
	mkdir mybackups
	echo "Created backup directory"
else
	echo "Backup directory found"
fi

for file in (man ls)
do
	if[${f: -3} == '.sh']
	then
		cp $file $file|date "+%Y%m%d"
	fi
done

#!/bin/ksh

backup_directory="mybackups"

if [[ -a $backup_directory ]]
then
    if [[ ! -d $backup_directory ]]
    then
        print -u2 "error: $backup_directory is not a directory"
        exit 1
    fi
else
    mkdir $backup_directory
    print "The directory $backup_directory was created successfully."
fi

for iterator in *
do
    if [[ -f $iterator ]]
    then
        current_filename=$iterator
        if [[ $current_filename == *.sh ]]
        then
            cp $iterator $backup_directory
            mv "$backup_directory/$current_filename" "$backup_directory/$current_filename-$(date +%m-%d-%y)"
        fi
    fi
done

#!/bin/bash

#if [test -e mybackups]
if [[ ! -w mybackups ]] # Extra test not required, space needed to seperate the [ from the content, check if the directory is writeable
then
	mkdir mybackups
	echo "Created backup directory"
else
	echo "Backup directory found"
fi

#for file in (man ls)
for file in $( ls *.sh ) # Saves you the test below as the loop will only see the .sh files
do
	#if[${f: -3} == '.sh']
	#then
	#cp $file $file|date "+%Y%m%d"
	cp $file mybackups/${file}$( date "+%Y%m%d" )
	#fi
done