Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

If no input then set directory to current

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting If no input then set directory to current
# 8  
Old 09-25-2015
thanks guys

I am just trying to find read, not "at least read"

Ok i have added the following at the top of the script

Code:
case $# in
0) dir=${dir:-.}
esac
echo $dir
fileread....

When i run this it tells me i have read permissions to 112 files and the echo $dir shows . so im presuming this command sets the location at root ? if the user starts at Templates for example c:\templates and runs the script and dosent enter any directory then i want the command to run on Templates
Last edited by Don Cragun; 09-25-2015 at 05:30 AM.. Reason: Add CODE and ICODE tags.
# 9  
Old 09-25-2015
Try something more like:
Code:
case $# in
(0)	printf 'Enter directory: '
	read dir;;
(1)	dir="$1";;
esac
printf 'Using directory "%s"\n' "$dir"

Or, if, when no operands are given to your script, you want to use the current directory specified as an absolute pathname instead of prompting for it:
Code:
case $# in
(0)	dir="$PWD";;
(1)	dir="$1";;
esac
printf 'Using directory "%s"\n' "$dir"

or, more simply:
Code:
dir="${1:-$PWD}"
printf 'Using directory "%s"\n' "$dir"

Last edited by Don Cragun; 09-25-2015 at 05:50 AM.. Reason: Add 3rd alternative.
This User Gave Thanks to Don Cragun For This Post:
johnnybananas
# 10  
Old 09-29-2015
thanks for your help. I have it all working now except for if the user specifies a directory. The script still runs on the current directory. Any idea why $1 isnt being interpreted ?

Code:
#/bin/bash

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

case $# in
(0) dir="$PWD";;
(1) dir="$1";;
esac
echo $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"

# 11  
Old 09-29-2015
"specifies" means what? Supplying a single parameter to the script or entering some answer to be read into "dir"?
# 12  
Old 09-29-2015
entering the answer to be read into dir

user is asked what dir - if they type in a dir then the script isnt acting on it, its still acting on pwd
# 13  
Old 09-29-2015
and it should - according to your script, $dir isn't used any more but overwritten in the case statement.
# 14  
Old 09-29-2015
ok . i must be missing something here. i thought that the case statement would change dir to $pwd if there was no entry by the user and if there was 1 entry then it would change dir to that entry $1 ?
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. AIX

How to set owner and permission for files/directory in directory in this case?

Hi. My example: I have a filesystem /log. Everyday, log files are copied to /log. I'd like to set owner and permission for files and directories in /log like that chown -R log_adm /log/* chmod -R 544 /log/*It's OK, but just at that time. When a new log file or new directory is created in /log,... (8 Replies)
Discussion started by: bobochacha29
8 Replies

2. UNIX for Dummies Questions & Answers

How to email the current directory?

Hi, I'm very new to Unix, but have been given a command to type in which is : mail -s <email subject goes here> <my email address> <success.txt this command is quite a basic one and sends an email containing the contents of the file "success.txt" to whatever email I put in with the subject of... (2 Replies)
Discussion started by: rnmuk
2 Replies

3. Shell Programming and Scripting

Need to delete large set of files (i.e) close to 100K from a directory based on the input file

Hi all, I need a script to delete a large set of files from a directory under / based on an input file and want to redirect errors into separate file. I have already prepared a list of files in the input file. Kndly help me. Thanks, Prash (36 Replies)
Discussion started by: prash358
36 Replies

4. UNIX for Advanced & Expert Users

current directory in awk

Hello, I want to use the string with the current directory in my awk command. I tried: 'pwd=system("pwd")' but it doesn't work. can please help somebody? (2 Replies)
Discussion started by: daWonderer
2 Replies

5. HP-UX

Unable to Set Prompt to current working DIR

HPUX does not recognise \h,\w,\u to display the hostname,working directory and username respectively. So how do i set the PS1 variable to display my current working Directory as my prompt? I also tried PS1=$PWD, But it keeps showing the same directory path as prompt which PWD was holding at... (3 Replies)
Discussion started by: Amit Kulkarni
3 Replies

6. Shell Programming and Scripting

tarball of current directory

I wanna make a backup tarball. I wanna write a script that makes tarball of the current directory. There are lots of files so I cant type all files, I wanna make the tarball by excluding few files. Like there 1000 files in a directory I wanna create a tarball containing 98 files of that... (1 Reply)
Discussion started by: nishrestha
1 Replies

7. UNIX for Dummies Questions & Answers

How to compare current time with the input to variant?

Hi all, I have a simple script follow: ------------- #!/bin/bash echo -n " Enter the date of today: " read dateoftoday ------------- Now I want to compare the variant $dateoftoday with date of the system (now) in order to prevent user inputs the past date to $dateoftoday. I want to make... (3 Replies)
Discussion started by: axn_boy
3 Replies

8. Shell Programming and Scripting

Finding files in current directory when 100,000's files in current directory

Hi All I was wondering what is the most efficient way to find files in the current directory(that may contain 100,000's files), that meets a certain specified file type and of a certain age. I have experimented with the find command in unix but it also searches all sub directories. I have... (2 Replies)
Discussion started by: kewong007
2 Replies

9. Shell Programming and Scripting

filename in current directory

I want to perform a task on all the files in the current directory but I'd like to loop through them one at a time. How do I tell it to give me the first filename? (2 Replies)
Discussion started by: calgone337
2 Replies

10. UNIX for Advanced & Expert Users

cannot determine current directory

Hi, when I execute some simple commands on my solaris system, I am getting the following warning message: Could anybody tell me what could be the reason Ex:- If I give the command, which ls Warning: cannot determine current directory ... (15 Replies)
Discussion started by: axes
15 Replies
Login or Register to Ask a Question