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7z command for files larger than 4GB ( unzip doesn't work)

 
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# 1  
Old 11-04-2014
7z command for files larger than 4GB ( unzip doesn't work)
My unzip command doesn't work for files that are greater than 4GB. Consider my file name is unzip -p -a filename.zip, the command doesn't work since the size of the file is larger. I need to know the corresponding 7z command for the same. This is my Unix shell script program:

Code:
 if [ "${FILECOMMANDOUTPUT}" = "ASCII" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "ISO-8859" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "UTF-8" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "Non-ISO" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "data" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "empty" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "Bio-Rad" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "Linux" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "Apple" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "Macintosh" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "English" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "compress'd" ]
then
  COMMANDTOUSE="gunzip -c"
elif [ "${FILECOMMANDOUTPUT}" = "compressed" ]
then
  COMMANDTOUSE="gunzip -c"
elif [ "${FILECOMMANDOUTPUT}" = "gzip" ]
then
  COMMANDTOUSE="gunzip -c"
elif [ "${FILECOMMANDOUTPUT}" = "Zip" ]
then
  COMMANDTOUSE="/usr/bin/unzip -p -a"
elif [ "${FILECOMMANDOUTPUT}" = "Par" ]
then
  COMMANDTOUSE="cat"
elif [ "${FILECOMMANDOUTPUT}" = "Netpbm" ]
then
  COMMANDTOUSE="cat"
else
  echo "${FILECOMMANDOUTPUT} is not known"
  exit 1
fi

I need to change the line COMMANDTOUSE="/usr/bin/unzip -p -a which unzips a zip file. How can I change that?
Last edited by Corona688; 11-04-2014 at 11:02 AM..
# 2  
Old 11-04-2014
Which Operating System are we talking? Unix/Linux or Windoze?
# 3  
Old 11-04-2014
Hi,

Its UNIX environment.

Chandra
# 4  
Old 11-04-2014
Yea, but which Unix????

A common workaround for this problem is to install Java and then you can run:

Code:
jar xf <zip file>

You might also try 'gunzip'
# 5  
Old 11-04-2014
Hi Thanks for your suggestion for your manual workaround . But I need to know the corresponding 7z command (7z is already installed ) .Its an Linux server where we need to read a data from a particular path. The shell script is failing for the zip file larger than 4GB.

Thanks for your help

Chandra
# 6  
Old 11-04-2014
Try this:
Code:
7z e -t zip filename.zip

Source: 7z man page (7z(1) - Linux man page)
# 7  
Old 11-04-2014
Quote:
Originally Posted by chandraprakash
Its an Linux server where we need to read a data from a particular path. The shell script is failing for the zip file larger than 4GB.
Sounds like you have an ancient version of unzip, try updating it.
 
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