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Zipping file issues

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# 1  
Old 06-30-2014
Zipping file issues
Hi All,

I am trying to zip a file but facing the issue.

I have three zip files.

a_1.zip
a_2.zip
c.zip

I want to add a_1.zip and a_2.zip to c.zip

Code:

Code:
###############

for i in a*.zip; do
printf "%s\n" "$i"
done | zip -@ c.zip

###############

After doing this the actual contents of c.zip is overriden by a_1.zip and a_2.zip

I want the contents of c.zip along with a_1.zip and a_2.zip.

Please let me know where am going wrong.

Thanks.

Moderator's Comments:
Mod Comment Please use code tags
Last edited by jim mcnamara; 06-30-2014 at 10:57 PM..
# 2  
Old 06-30-2014
Are the 'a_#' files a split zip file or individual/independant zip files?
# 3  
Old 06-30-2014
zip -@ filename.zip - the man page says that this takes filenames from stdin and then writes them into filename.zip. No appending if the file filename.zip already exists. It is overwritten. stdin reads one filename per line of input. As sea mentions.
Code:
for i in a.zip b.zip c.zip
do
  echo $i
done | zip -@  unused_name.zip
mv unused_name.zip c.zip

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