if [ -z "$1" ] ; then and if [ $# -lt 1 ]; then are basically the same.
I added the required extensions for you, hope you will like it. It's rather a quick & dirty hack than how it should be done in a professional manner. I mean it should be done using getopts.
Code:
#!/bin/bash
function usage {
echo
echo " Usage: `basename $0` [-d] directory [directory2] [directory3]"
echo
echo " Given a directory, this script estimates its file space usage,"
echo " separately counts files and directories in it."
echo
echo " -d show subfolders of specified folder(s)"
echo " -h, --help show this usage notice"
echo;exit
}
if [ -z "$1" ] ; then
usage
fi
case "$1" in
-h|--help) usage;;
-d) if [ -z "$2" ]; then
usage
fi
shift
dswitch=1;;
esac
for dirname in "$@"
do
if [ -d "$dirname" ]; then
echo "CHECKING $dirname..."
echo -n "SIZE: "
du -s "$dirname"
echo -n "FILES: "
find "$dirname" -type f | wc -l
echo -n "DIRECTORIES: "
find "$dirname" -type d | wc -l
if [[ $dswitch -eq 1 ]]; then
find "$dirname" -type d
fi
echo
else
echo "Directory \"$dirname\" does not exist!"
echo
fi
done
if [ -z "$1" ] ; then and if [ $# -lt 1 ]; then are basically the same.
I added the required extensions for you, hope you will like it. It's rather a quick & dirty hack than how it should be done in a professional manner. I mean it should be done using getopts.
Code:
#!/bin/bash
function usage {
echo
echo " Usage: `basename $0` [-d] directory [directory2] [directory3]"
echo
echo " Given a directory, this script estimates its file space usage,"
echo " separately counts files and directories in it."
echo
echo " -d show subfolders of specified folder(s)"
echo " -h, --help show this usage notice"
echo;exit
}
if [ -z "$1" ] ; then
usage
fi
case "$1" in
-h|--help) usage;;
-d) if [ -z "$2" ]; then
usage
fi
shift
dswitch=1;;
esac
for dirname in "$@"
do
if [ -d "$dirname" ]; then
echo "CHECKING $dirname..."
echo -n "SIZE: "
du -s "$dirname"
echo -n "FILES: "
find "$dirname" -type f | wc -l
echo -n "DIRECTORIES: "
find "$dirname" -type d | wc -l
if [[ $dswitch -eq 1 ]]; then
find "$dirname" -type d
fi
echo
else
echo "Directory \"$dirname\" does not exist!"
echo
fi
done
Thank you !! Now can i try implement other parameters
---------- Post updated at 11:56 AM ---------- Previous update was at 11:48 AM ----------
Quote:
Originally Posted by Roggy
Thank you !! Now can i try implement other parameters
i have done it to implement other parameters but i have one question that I not understand in the script what means and what does dswitch , I don't understand it because it is my first time I do bash scripting
dswitch=1 literally means that value 1 is assigned to the variable dswitch, but I used that variable name to "remember" that the script was started with the "-d" option. One could interpret it as "script started with -d option?"="YES".
It's related to the second if statement in the for loop, which decides if all subfolders of a specific directory need to be shown too or not.
dswitch=1 literally means that value 1 is assigned to the variable dswitch, but I used that variable name to "remember" that the script was started with the "-d" option. One could interpret it as "script started with -d option?"="YES".
It's related to the second if statement in the for loop, which decides if all subfolders of a specific directory need to be shown too or not.
Thank you very much, but what must I change for give one parameter ?
I want to give ./test1.sh Desktop only first and then I want to give two directories ./test1.sh Documents Desktop and then the parameters I implement -d -f
Is this the line I have to changed ? Into if [$# -lt 1 ] ?
There have been a couple of suggestions saying that you should use getopts to parse options (and I STRONGLY agree). Unfortunately, as far as I know, getopts in bash can't handle long options. Although it isn't often described in the man pages, getopts in many version of the Korn shell works well with both short and long options as long as there is a single letter equivalent for each long option. The following is a rewrite of your script using ksh instead of bash and using getopts instead of discrete option parsing. This doesn't make a lot of difference in your code since you only have one option that can be logically used at a time; but it does give you the ability to use -- as an option terminator in case you have a directory operand that starts with a -, and, if you add more options later, groups of short options that don't take option arguments can be combined into a single argument to your script (the same as allowed by standard utilities).
After parsing options this script will print the number of operands remaining, list them, and then process them as directory operands.
You haven't said what OS you're using, so this might not work on your system, but it is worth a try...
Code:
#!/bin/ksh
IAm=${0##*/}
usage() {
printf '
SYNOPSIS:
%s [-d] directory...
%s -h
DESCRIPTIN:
For each directory operand given, estimate the amount of disk space
used by the file hierarchy rooted in that directory, and count the
number of regular files and directories in that hierarchy.
OPTIONS:
-a, --subdir Also list subdirectories of directory operands.
-h, --help Display this help notice.
OPERANDS:
directory The pathname of a direcotry to be processed.
EXIT STATUS:
0 Successful completion.
1 Unexpected options found.
2 No operands found.
3 One or more directory operands were not found.
' "$IAm" "$IAm"
}
# Parse options...
dswitch=0
err=0
while getopts -a "$IAm" "d(subdir)h(help)" opt
do case $opt in
(d) dswitch=1;;
(h) usage
exit 0;;
(?) err=1;;
esac
done
# Shift away arguments used for options
shift $((OPTIND - 1))
# If no bad options were found, verify that we have at least one operand...
if [ $err -eq 0 ] && [ $# -lt 1 ]
then printf '%s: No operands provided\n' "$IAm" >&2
err=2
fi
# If we had bad optoins or do not have any operands, print help message as a
# diagnostic and exit.
if [ $err -gt 0 ]
then usage >&2
exit $err
fi
# Print operands remaining after option parsing...
printf '%s: %d operands remain after option parsing:\n' "$IAm" $#
printf '\t"%s"\n' "$@"
echo
# Process directory operands...
for dirname in "$@"
do # Be sure directory named by an operand is present...
if [ -d "$dirname" ]
then # The directory is present...
printf '"CHECKING DIRECTORY: "%s"...\n' "$dirname"
printf 'SIZE: '
du -s "$dirname"
printf 'REGULAR FILES: '
find "$dirname" -type f | wc -l
printf 'DIRECTORIES: '
find "$dirname" -type d | wc -l
# If -d (or --subdir) option was given, list subdirectories...
if [ $dswitch -eq 1 ]
then find "$dirname" -type d
fi
echo
else # The directory is not present...
printf 'Directory "%s" does not exist!\n\n' "$dirname" >&2
# Set non-zero exit code for when we have finished processing
# any remaining directory operands.
err=2
fi
done
exit $err
When invoked as:
Code:
sumcontent.sh --help
or
sumcontent.sh -h
it produces the output:
Code:
SYNOPSIS:
sumcontent.sh [-d] directory...
sumcontent.sh -h
DESCRIPTIN:
For each directory operand given, estimate the amount of disk space
used by the file hierarchy rooted in that directory, and count the
number of regular files and directories in that hierarchy.
OPTIONS:
-a, --subdir Also list subdirectories of directory operands.
-h, --help Display this help notice.
OPERANDS:
directory The pathname of a direcotry to be processed.
EXIT STATUS:
0 Successful completion.
1 Unexpected options found.
2 No operands found.
3 One or more directory operands were not found.
on standard output and exits with exit code 0.
When invoked as:
Code:
sumcontent.sh -d $HOME/dl .
or
sumcontent.sh --subdir $HOME/dl .
or
sumcontent.sh -d -- $HOME/dl .
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