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Full Discussion: Tar command generation with Find
Top Forums UNIX for Beginners Questions & Answers Tar command generation with Find Post 302996208 by royinfo.alain on Friday 21st of April 2017 02:01:39 PM
Old 04-21-2017
Thanks Corona688,

I need to select only files modified since last x days, this is why in the first post you can see -mtime -nbdays on my find command.

And Yes .sf are files.

I don't understand the section :

# Add .sfd to list if exists, .sf if not

I need to generate 1 tar file that will contain all files selected (.sfd).

1 - find all .sf file modified since last 2 years
2- with that list of files, see if a file (same filename) but with the extension .sfd exist. if the .sfd exist keep only the .sfd file.. IF not exist skip the file and process the next .sf file.

thank you

---------- Post updated at 12:47 PM ---------- Previous update was at 12:08 PM ----------

Corona688,

the fact that I'm just a beginner in Unix, I just understand what you saying..

FILES="$FILES $FILE"

At the end, $FILES with contain all .sfd file picked ||

Just need to be able to select only files (.sf) where the last mods date is max 2 years.

thanks

---------- Post updated at 01:09 PM ---------- Previous update was at 12:47 PM ----------

I tried the commands (from Corona688) and I got the error :

The specified substitution is not valid for this command.

related to the line :

FILE2="${FILE/.sf}".sfd

thanks

---------- Post updated at 02:01 PM ---------- Previous update was at 01:09 PM ----------

Hello,

I find a way to replace the .sf by .sfd without error by usinf sed.

Code:
FILES=""
for FILE in *.sf
do
FILE2=`echo $FILE | sed 's/\.sf/.sfd/g'` 
[ -e "$FILE2" ] && FILE="$FILE2"
FILES="$FILES $FILE"
done
echo tar -cf - $FILES

Now, what is missing is the way to select only files (.sf) where the last mod date is 2 years.

Something similar that I did in a find command, but need to be done in the FOR command that Corona688 gave us.

Something similar to :
find *.sf -type f -mtime -$nb_days | ...

thanks a lot
Last edited by Corona688; 04-21-2017 at 03:16 PM..
 

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LEARN ABOUT REDHAT

head

HEAD(1) 								FSF								   HEAD(1)

NAME

       head - output the first part of files

SYNOPSIS

       head [OPTION]... [FILE]...

DESCRIPTION

       Print  first  10 lines of each FILE to standard output.	With more than one FILE, precede each with a header giving the file name.  With no
       FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -c, --bytes=SIZE
	      print first SIZE bytes

       -n, --lines=NUMBER
	      print first NUMBER lines instead of first 10

       -q, --quiet, --silent
	      never print headers giving file names

       -v, --verbose
	      always print headers giving file names

       --help display this help and exit

       --version
	      output version information and exit

       SIZE may have a multiplier suffix: b for 512, k for 1K, m for 1 Meg.

AUTHOR

       Written by David MacKenzie.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The  full documentation for head is maintained as a Texinfo manual.  If the info and head programs are properly installed at your site, the
       command

	      info head

       should give you access to the complete manual.

head (coreutils) 4.5.3						   February 2003							   HEAD(1)
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