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Full Discussion: Cut the file name
Top Forums Shell Programming and Scripting Cut the file name Post 302427939 by alister on Tuesday 8th of June 2010 10:34:25 AM
Old 06-08-2010
I realize you've already solved your problem, but I share this in hopes that it may be helpful anyway.

The problem with your original code is in:
Code:
echo &file1

The '&' terminates the echo command and causes it to run in the background. The shell then tries to execute the command named "file1". I assume what you were going for was "echo $file1", to echo the filename.

In this case, if you want to be verbose, instead of manually echoing filenames and the like, you can just use gunzip's -v option, which, in addition to the filename, provides information on compression efficiency.

Also, there is no need to bother with an external tool such as cut when you can use the case statement's inherent pattern matching.

Code:
case $1 in
    *.gz) gunzip -v "$1";;
esac

Regards,
Alister
 

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XZDIFF(1)                                                            XZ Utils                                                            XZDIFF(1)

NAME
xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files SYNOPSIS
xzcmp [cmp_options] file1 [file2] xzdiff [diff_options] file1 [file2] lzcmp [cmp_options] file1 [file2] lzdiff [diff_options] file1 [file2] DESCRIPTION
xzcmp and xzdiff invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), bzip2(1), or lzop(1). All options specified are passed directly to cmp(1) or diff(1). If only one file is specified, then the files compared are file1 (which must have a suffix of a supported compression format) and file1 from which the compression format suffix has been stripped. If two files are specified, then they are uncompressed if necessary and fed to cmp(1) or diff(1). The exit status from cmp(1) or diff(1) is preserved. The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils. SEE ALSO
cmp(1), diff(1), xz(1), gzip(1), bzip2(1), lzop(1), zdiff(1) BUGS
Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified. Tukaani 2011-03-19 XZDIFF(1)
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