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Full Discussion: removing the filename extension
Top Forums Shell Programming and Scripting removing the filename extension Post 302501486 by alister on Thursday 3rd of March 2011 04:43:35 PM
Old 03-03-2011
Quote:
Originally Posted by in2nix4life
for x in *;do mv $x $(echo ${x%*.*});done
There's no need for the echo command substitution and the first asterisk in your parameter substitution is meaningless since it's a shortest match (% instead of %%). Also, the filenames in question have spaces (perhaps that info was added after you had read the post), so the expansions need to be double quoted to protect them from field splitting.

A slightly simpler version of your approach:
Code:
for x in *; do
    mv "$x" "${x%.*}"
done

---------- Post updated at 04:43 PM ---------- Previous update was at 04:40 PM ----------

Quote:
Originally Posted by daflore
Is there an easy way to strip off a filename's extension?
...<snip>...
Thanks. I have a directory full of filenames that need to be manipulated in this way.
If it's possible that striping the file extension from file1 can match an existing file, file2, and if you don't want file2 clobbered, you'll want to test for the existence of file2 before doing the mv.

Regards,
Alister
 

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asntool

ASNTOOL(1)						     NCBI Tools User's Manual							ASNTOOL(1)

NAME

       asntool - process ASN.1 module specifications

SYNOPSIS

       asntool [-] [-B filename] [-D N] [-G] [-I str] [-J type] [-K str] [-L str] [-M filename,...] [-P str] [-Q] [-S filename] [-T filename] [-V]
       [-X filename] [-Z]  [-b N]  [-d filename]  [-e filename]  [-f filename]	[-l filename]  -m filename  [-o filename]  [-p filename]  [-t str]
       [-v filename] [-w N] [-x filename]

DESCRIPTION

       asntool reads, validates, and displays ASN.1 module specifications.

OPTIONS

       A summary of options is included below.

       -      Print usage message

       -B filename
	      Generate objects and code in files named filename.*

       -D N   Debugging level for code generation:
	      0      No debugging (default)
	      1      Shallow debugging
	      2      Deep debugging
	      3-9    Same as 2

       -G     Generate object loader .c and .h files

       -I str Put "#include str" in generated .c file

       -J type
	      Register type type with object manager

       -K str In generated .c, force name of #included asn header to str

       -L str Label registered type as str

       -M filename,...
	      Search the ASN.1 modules in filename,... for external references

       -P str XML module prefix for DOCTYPE

       -Q     Use quoted syntax form for generated include files

       -S filename
	      Send debugging output to filename rather than stderr

       -T filename
	      Dump ASN.1 tree to filename

       -V     Force CHOICE objects to use custom structures rather than ValNodePtrs, for compatibility with some old hand-coded object loaders.

       -X filename
	      Write XML DTD to filename.  If filename is "m", print each module to a separate file.

       -Z     Bit twiddle for optional zero value base slots

       -b N   Use N-byte buffers (default = 1024; anything between 512 and 10000 is legal)

       -d filename
	      Read binary values from filename (requires -t)

       -e filename
	      Write binary values to filename

       -f filename
	      Write ASN.1 module to filename

       -l filename
	      Write ASN.1 loader to filename

       -m filename
	      Read ASN.1 module from filename

       -o filename
	      Write header to filename

       -p filename
	      Write print values to filename

       -t str Expect binary values to have type str

       -v filename
	      Read print values from filename

       -w N   Limit values in #defines to N bits (default = 31; anything between 31 and 128 is legal)

       -x filename
	      Write XML data to filename

AUTHOR

       The National Center for Biotechnology Information.

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								    2010-09-01								ASNTOOL(1)
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