Hi,
I need to prompt for a response from a user to enter a path
read dest_dir?"Please Enter Directory :"
How do I do this until a valid directory is entered by the user. I can use
to check the existence of the directory. However when I try the following I cannot get it to work.
while ... (2 Replies)
Hi,
what is the command to in unix shell to find whether a particular direcory is existing or not ?
example: i am now in ~/scripts directory and want to find if a direcory called 'log' exists or not from a shell scripts.
can somebody please help.
thanks,
sateesh (3 Replies)
I have the list of users in user.log, under each user folder there is sub1 folder is there. i want to check whether sub1 is empty or not, if it is empty i have to skip that user user folder and iterate next user folders. i have the sample code,its not giving not proper results.
while read line... (8 Replies)
Well, I know I could use a cron job to check if a new directory is made. However, I know that it won't happen like every 5 minutes and would be waste of resources. I was wondering is there a better way to check if a new directory is made in a certain folder without a cron job. I do not want it to... (3 Replies)
Hi All,
I have a requirement to check all the files in a directory and mail non empty files
Files are in csv format , i need to skip header while checking
pls help
Thanks (12 Replies)
I want to know how you would go about checking if something is either a file or a directory. mostly for argument validation stuff.
I know -d is to see if its a directory but im guessing -f is for files?? (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
1.pls tell me the command for checking whether a given directory is empty or not .
2. can i check what is the... (1 Reply)
How can i check in shell script if the file is coming from same directory as previous file. (3 Replies)
Discussion started by: Pratiksha Mehra
3 Replies
LEARN ABOUT X11R4
escape
escape(1) Mail Avenger 0.8.3 escape(1)NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)