I want to list all the folders name of a directory in one file. I used the below set of commands to do that:

location="\usr\Richa\study"
cd $location
ls > ModelNames.txt

This one is working fine but in the below case
when i m taking the input from user , no entry added in the ModelNames file

echo "Please enter the location of models"
read location
cd $location
ls > ModelNames.txt


Note : In the above code \usr\Richa\study is the current directory, whereas location is another directory

Not sure I believe the first case worked since you are using backslashes instead of slashes.

In the script it is slash only here by mistake I wrote backslash.

Can you please tell me how can i write all the folders(directory and files all) name in one file.

Hi,

I may be no expert but i would presume the way would be to append the output to a file. Perhaps you can append the output >> or the "tee" command which would send the command to stdout and to a file.

Just my

Regards
Marios

Try this, prints all directories:
Info:
-type d //only directories
-type f //only files

for both file and directories exclude -type option.

2 members found this post helpful.

Assuming the above is correct and that your follow up about the slashes being a typo is also true, then the below statement is dubious:
I would believe this more if your first script used a different location other than the current directory as you have no proof that your cd command actually worked.

1 members found this post helpful.

Thanks for the post its working now

Can you tell me why ls was not working , I tried
ls |tee ModelName.txt
for this, script was printing the result in Standard output but was not able to copy it in the file.

Hi
Thanks for the post
Please find the reply of the post below

When we copy the data to any file we can use > and >> both.
we use > when we want to override the data of file with new data
and >> to append the new data in the file

apart from that I used tee command , and script showing the ls result in standard output but text file is still empty.
I have no idea why its not updating the text file when its able to display the result.

If you're using a reasonably new version of bash, then you can generally use simple globbing, with the new recursive globstar pattern (**). Use printf to format the output one-file-per-line.

If you add a backslash to the end of a glob pattern, it matches directories only.

Use dotglob to include hidden files.
Use b instead of nullglob if you want the command to error out if no match instead.

globstar is supported from bash v.4+, and there's currently one problem with it. If the file tree contains any recursive directory symlinks, it will get caught in an infinite loop and bog everything down. Other than that it should be very efficient.

ksh also supports this pattern out of the box (correction, you need to use set -G to enable it), and zsh probably does too, or something similar. I don't think they suffer from the above bug. Check their documentation though for full info on their available options.


An added benefit of globbing patterns is that you can also process them directly with a for loop, if you intend to do more with the files than just save their names.



PS: Please use ***[code][/code]*** tags around your code and data, to preserve the original formatting and to improve readability. Do not use quote tags, bolding, colors, "start/end" lines, or other creative techniques. Thanks.