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Full Discussion: check if directory exists
Top Forums Shell Programming and Scripting check if directory exists Post 74806 by jerardfjay on Monday 13th of June 2005 02:26:04 PM
Old 06-13-2005
Quote:
Originally Posted by reborg
quote the $dest_dir in your test.

Code:
[ -z "$dest_dir" ]

Thanks reborg. Now I have the following
Code:
while [ -z "$dest_dir" ]
do
    read dest_dir?"Please Enter Directory :"
    if [ -d $dest_dir ];
       then
             echo "Invalid directory entered. Please try again"
    fi
done

When executed and if the response is just a "CR". I get the following
test.sh
Please Enter Directory :
test.sh[4]: test: 0403-004 Specify a parameter with this command.
Please Enter Directory :

To overcome the same I changed line 4 to also include quotes. Also I included the negation on this check to make it work correctly as follows
Code:
while [ ! -d "$dest_dir" ]
do
    read dest_dir?"Please Enter Directory :"
    if [ ! -d "$dest_dir" ];
       then
             echo "Invalid directory entered. Please try again"
    fi
done

.

Thanks.

Last edited by jerardfjay; 06-13-2005 at 03:33 PM.. Reason: code change
 

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answer(1)						      General Commands Manual							 answer(1)

NAME
answer - phone message transcription system SYNOPSIS
DESCRIPTION
The interactive program helps you to transcribe telephone (and other) messages into electronic mail. The program uses your personal alias database and the system alias database, allowing you to use aliases to address the messages. Options supports the following options: Prompt for phone-slip-type message fields. Allow addresses that are not aliases. Operation begins with the prompt. Enter a one-word alias or a two-word user name ("Words" are separated by spaces.) The user name is converted to an alias in the form where f is the first character of the first word, lastword is the second word, and all letters are shifted to lower- case. For example, is converted to the alias Without the option, the specified or converted alias must exist in the alias databases. With the option, if the processed "alias" is not in the alias databases, it is used for the address as is. The fully expanded address is displayed. With the option, you are asked for typical message slip data: Enter the appropriate data. You can put just an or nothing after the pertinent dash prompts, or you can type longer comments. Whatever you enter becomes part of the message. Lines with no added text are omitted from the message. Finally, you are prompted for a message. Enter a message, if any, ending with a blank line. The message is sent and the prompt is repeated. To end the program, enter any one of or at the prompt. EXAMPLES
User input is in normal type. With No Options This example shows a valid alias, an invalid user name, and a valid user name. In the invalid case, the converted alias is displayed in square brackets. With the -u Option If you enter the previous error is treated differently. With the -p Option If you enter the phone-slip prompts are added. The three lines with no added text are deleted from the message. FILES
User alias database data table User alias database directory table User alias database hash table User alias source text System alias database data table System alias database directory table System alias database hash table System alias source text Outbound mail message edit buffer AUTHOR
was developed by HP. SEE ALSO
elm(1), newalias(1). answer(1)
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