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Full Discussion: Passing gunzipped filename to a variable
Top Forums Shell Programming and Scripting Passing gunzipped filename to a variable Post 302672559 by alister on Monday 16th of July 2012 02:23:28 PM
Old 07-16-2012
If you have the filename in $b, then what's the problem?

Not knowing more about the filename and what guarantees are in place regarding its suffix, nor knowing what you are trying to accomplish, I can't confidently suggest how to proceed.

If the suffix is recognized by gunzip, it will automatically strip the suffix when it decompresses the file. If the suffix is not recognized by gunzip, it will not work on the file. If you attempt to modify the filename in your shell variable independently of the renaming that gunzip may or may not perform, disagreement could ensue if error conditions aren't checked and handled diligently.

If you simply need the name of the decompressed file so that you can work with it, you may be better off handling all file renaming yourself and explicitly instructing gunzip what to name your file:
Code:
gunzip -c "$b" > newname

...where newname is something under your control.

If this isn't of any help to you, then, please, for the second time, just share your code. Your textual explanations so far have been inadequate. I'm not sure anyone understands the problem or the goal.

Regards,
Alister
 

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LEARN ABOUT MINIX

tget

TGET(1) 						      General Commands Manual							   TGET(1)

NAME

       tget - get termcap values

SYNOPSIS

       tget [-flag id] [-num id] [-str id] [-goto col line] [[-echo] string]

DESCRIPTION

       Tget  allows  shell  scripts access to the termcap(3) functions.  Flags, numbers and strings can be queried from the termcap database under
       the entry denoted by the environment variable $TERM.

OPTIONS

       -flag id
	      Set the exit status to zero if the flag id is set.  All other options except -echo set the exit status to id being available or not.
	      The last option sets the final exit code.

       -num id
	      Print the value of the numeric variable id.

       -str id
	      Print the value of the string variable id.

       -goto col line
	      Generates instructions to go to the given column and line if the cm capability exists.

       -echo string
	      Prints string.  Any other argument that does not start with a dash is also printed.

EXAMPLE

       Try this: tget -str so 'Reverse Video' -str se

ENVIRONMENT

       TERM	      Terminal type.

       TERMCAP	      Path to the termcap database, by default /etc/termcap:/usr/etc/termcap.

SEE ALSO

       termcap(3).

DIAGNOSTICS

       Tget will fail immediately with a descriptive message if the termcap entry can't be found.

AUTHOR

       Kees J. Bot (kjb@cs.vu.nl)

																	   TGET(1)
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