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Top Forums UNIX for Dummies Questions & Answers Move files using wildcards ??? Post 12225 by Jimbo on Friday 21st of December 2001 10:39:20 AM
Old 12-21-2001
That looks OK, except that "rename" should be "mv" (slipping back into DOS mode, are you?)

The mv will clobber any existing files in the way, such as an older df01. If you want protection from this, then use mv -i, or your loop could check for existence before the mv.

Also, if you are going to cut exactly two columns, you should drive off of Nov??_df instead of Nov*_df. If you use asterisk, and you happen to have:

Nov01_df
Nov01b_df

you would rename the first entry to df01, then you would rename the second entry to df01 also, thus overlaying the first entry. Using Nov??_df will be consistent with cutting two characters.

Or if you do want to process Nov*_df files, you could use the following for your Nname assignment:

Nname=`expr $x : "Nov\(.*\)_df"`df

And an attempt at answering your BTW:

mv is simply not designed to rename a series of files into a series of new filenames. And I believe that the filename pattern matching expansion is done by the shell before mv ever sees it. Therefore:

mv Nov??_df mydir

would get changed to

mv Nov01_df Nov02_df Nov03_df mydir

before mv sees it. The mv command never gets to see the pre-expanded command.
Jimbo
 

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RECEIVE(1)						      General Commands Manual							RECEIVE(1)

NAME
receive - receive files from the sendfile spool SYNOPSIS
receive [ -d ] [ -r ] [ -k ] [ -P ] [ -S ] [ -Z spool ] [ -q ] [ -ffrom ] file [...] receive -n [ -d ] [ -r ] [ -k ] [ -P ] [ -S ] [ -Z spool ] [ -q ] file-number [...] receive [ -s ] [ -l ] [ -L ] [ -R ] [ -ffrom ] receive -b user[@host] [ -k ] [ -f"from" ] file [...] receive -b user[@host] [ -k ] [ -f"from" ] -n file-number [...] receive -b user[@host] [ -k ] -a DESCRIPTION
receive files from the sendfile spool which has been sent to you. If there is already a file with the same name you will be prompted for overwriting or renaming. Allowed wildcards in file names are: * ? [abc] [^abc] CAUTION: you have to put wildcards and other special characters in '' quotes to hide them for interpretation by your shell. OPTIONS
-n receive file number(s) -d delete instead of receive -a receive (or delete or bounce) all files -r rename before receiving -k keep files in spool after receiving -P pipe files to stdout -S receive only pgp-signed files -s list files in short format -l list files -L list files and look inside archives, too -R renumber files in spool -b bounce (forward) files to another recipient -q quiet mode: no questions asked -fuser all actions refer only to files from this user -Z spool specify an alternate spool directory EXAMPLES
receive -L list all files in long format. receive 'blubb*' receive all files starting with string "blubb". receive -daf microsoft.com delete all files from microsoft.com sites. receive -b framstag@bofh '*.jpg' bounce all *.jpg-files to framstag@bofh. FILES
/var/spool/sendfile The sendfile spool directory. /var/spool/sendfile/$USER/log A log of the last transfers. /etc/sendfile.deny Users which are not allowed to receive files or messages (set by root). SEE ALSO
sendfile(1). AUTHOR
Ulli Horlacher - framstag@rus.uni-stuttgart.de 3rd Berkeley Distribution RECEIVE(1)
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