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Full Discussion: Assigning the output of a command to a variable, where there may be >1 line returned?
Top Forums UNIX for Dummies Questions & Answers Assigning the output of a command to a variable, where there may be >1 line returned? Post 302381211 by Glyn_Mo on Thursday 17th of December 2009 12:31:22 PM
Old 12-17-2009
Assigning the output of a command to a variable, where there may be >1 line returned?
Hello

I am using unix CLI commands for the Synergy CM software. The command basically searches for a folder ID and returns the names of the projects the folder sits in. The result is assigned to a variable:
Code:
FIND_USE=`ccm folder -fu -u -f "%name"-"%version" ${FOLDER_ID}`

When the command only returns one line of output, there is no problem.

However, if the folder is contained in more than one project, the command will return more results, such as the following:

agriculture-stst
agriculture-uat

My question is, when assigning the output of a command to a variable, where there is more than one line returned by the command, what will be assigned to the variable?
- Will it pick up the first line only?
- Will it pick up the last line only?
- Or does it get confused and pick up nothing at all?

Many thanks
Glyn
 

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LEARN ABOUT OSF1

packf

packf(1)						      General Commands Manual							  packf(1)

NAME

       packf - compress a folder into a single file (only available within the message handling system, mh)

SYNOPSIS

       packf [+folder] [msgs] [-file name] [-help]

OPTIONS

       Specifies  the  file  in  which	you  want the message(s) to be stored. If you specify an existing file then the specified messages will be
       appended to the end of that file. Otherwise, a new file will be created and the messages placed in it. If you do not  specify  a  filename,
       packf  attempts	to  place  the	messages in a file called msgbox in the current working directory. If this file does not exist, packf asks
       whether you want to create it.  Prints a list of the valid options to this command.

       The default settings for this command are:

       +folder defaults to the current folder msgs defaults to all -file

DESCRIPTION

       Each message in a folder is normally stored as a separate file. The packf command takes all messages from the  current  folder  and  copies
       them to a single specified file. Each message in the file is separated by four <CTRL/A>s and a newline.

       You can specify a folder other than the current folder by using the +folder argument. If you do not want all the messages in a folder to be
       packed into one file, you can specify a number of messages or a range of messages with message numbers.

       The first message packed will become the current message. If you specify a +folder argument, that folder will become the current folder.

       When messages have been packed into a file using packf, you can separate them  into  individual	messages  using  the  burst  command.  See
       burst(1).

PROFILE COMPONENTS

       Path: To determine the user's Mail directory

       Msg-Protect: To set protections when creating a new file

EXAMPLES

       The  first example shows all the messages in the folder +lrp being packed into a file called planning: % packf +lrp -file planning The next
       example shows how packf prompts you if you do not specify a -file option. A file called msgbox is created by packf in your home	directory,
       and messages 3 to 5 are packed into it: % packf +lrp 3-5 Create file "/machine/disk/username/msgbox"? y

FILES

       The user profile.

SEE ALSO

       burst(1)

																	  packf(1)
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