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Top Forums UNIX for Dummies Questions & Answers Including case insensitivity into loop command Post 302349977 by Corona688 on Wednesday 2nd of September 2009 12:03:01 PM
Old 09-02-2009
Why run cat dozens of separate times in a shell loop when you could just run it once with no loop at all? concatenating files is what cat is for. Smilie It can of course accept multiple arguments.

Code:
cat *.csv *.CSV >> $newfile

If you're worried about there being too many arguments for commandline parameters to handle, I don't think a loop will help, you'll need to use a pipe.
Code:
# ls -1, as in one, not L
ls -1 | grep -i '\.csv$' | xargs --no-run-if-empty cat >> $newfile


Last edited by Corona688; 09-02-2009 at 01:13 PM..
 

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gvfs-cat(1)							   User Commands						       gvfs-cat(1)

NAME
gvfs-cat - print a file to standard output using the VFS system SYNOPSIS
gvfs-cat URI DESCRIPTION
gvfs-cat prints a file to standard output using the virtual file system to access the file via a URI. OPERANDS
The following operands are supported: URI Specifies the file location in standard URI format. EXAMPLES
Example 1: Cat a File From a Web Server example% gvfs-cat http://www.sun.com Example 2: Cat a Local File example% gvfs-cat file:///home/user/README.txt ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables: NLSPATH. EXIT STATUS
The exit value 0 is returned regardless of success or failure. FILES
The following files are used by this application: /usr/bin/gvfs-cat Executable to print a file to standard output using the VFS system ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWgnome-gvfs | +-----------------------------+-----------------------------+ |Interface stability |Volatile | +-----------------------------+-----------------------------+ SEE ALSO
gvfs-copy(1), gvfs-info(1), gvfs-less(1), gvfs-ls(1), gvfs-mkdir(1) gvfs-monitor-dir(1), gvfs-monitor-file(1), gvfs-mount(1), gvfs-move(1), gvfs-rename(1), gvfs-open(1), gvfs-rm(1), gvfs-save(1), gvfs-trash(1), gvfs-tree(1), attributes(5), environ(5) NOTES
Written by Alvaro Lopez Ortega, Sun Microsystems Inc., 2008. SunOS 5.11 25 Mar 2008 gvfs-cat(1)
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