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If no input then set directory to current

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Top Forums Shell Programming and Scripting If no input then set directory to current
# 15  
Old 09-29-2015
No. $# is the parameter count to the script, nothing to do with the variable read. Try sth like [ -z $dir ] to check for an empty variable.
# 16  
Old 09-29-2015
parameter count, yes so if 0 then set dir to pwd and if 1 (the user enters a dir) then set dir to that value ?

---------- Post updated at 05:04 AM ---------- Previous update was at 04:53 AM ----------

ok i looked at using the method you suggested and it works ok on hte current directory now (if no user input) but still doesnt take the user input into $1 if they enter it

Code:
if [ -z $1 ]
then
dir="$PWD"
elif [ -n $1 ]
then
dir="$1"
fi

# 17  
Old 09-29-2015
The user does not enter a parameter when typing into a read statement. Parameters are supplied when calling the script (e.g.scname):
Code:
./scname  A   B   C
=    $0   $1  $2  $3  
$#: 3

This User Gave Thanks to RudiC For This Post:
johnnybananas
# 18  
Old 09-29-2015
but i dont want to supply parameters calling the script. I just want the script to execute and ask the user what dir they want to check

if the user just presses enter without entering a dir then the script will use the current dir

if the uses enters a dir then the script will use that one
# 19  
Old 09-29-2015
Then don't use $1 nor $#, but $dir.
# 20  
Old 09-29-2015
I must be annoying you so apologies for that

yeah i thought that myself that it should be $dir so last time now i promise, here is my code

If i enter a dir then it works fine but its now not working on the current dir (if user enters no value)

Code:
#/bin/bash

echo "What directory do you want to check your permissions on ?"
read dir

case $dir in
(0) dir="$PWD";;
(1) dir="$dir";;
esac
printf 'Using directory "%s"\n' "$dir"

fileread=$(find "$dir" -type f -perm /u+r | wc -l)
echo "You have read permissions to $fileread files"

filewrite=$(find "$dir" -type f -perm /u+w | wc -l)
echo "You have write permissions to $fileread files"

filecombi=$(find "$dir" -type f -perm /u+rw | wc -l)
echo "You have read and write permissions to $fileread files"

# 21  
Old 09-29-2015
Does this work?
Code:
case $dir in
(0) dir="$PWD";;
(1) dir="$dir";;
esac

If not, try:
Code:
[ -z "$dir" ] && dir="${PWD:-$(pwd)}"

Also, you want to adjust the variable names of the last 2 outputs, all the 3 use: $fileread for their output, while you fill filewrite and filecombi

hth
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