Compress 7z files individually 03.05.15

#
# Purpose: Script to compress all files of given extension to individual archives using 7z
# Usage  : zipeach.sh <extension-without-prefix-dot> i.e zipeach.sh n64
# Author : r3dux
# Date   : 16/04/2009
#
#!/bin/bash
 
count=0           # File counter
got7z=$(which 7z) # Use "which" to check if there's a copy of 7z on the system
 
# If there's no copy of 7z - we're not going to be doing much compressing... Exit stage left.
if [ "$got7z" = "" ]; then
    echo "No copy of 7z found on system! Try running: sudo apt-get install p7zip-full"
    exit 0
fi
 
# If we have 7z, and have been given a file extension parameter...
if test "$1"; then
 
# Stop the script from entering an infinite loop should user mistakenly enter 7z as filetype to compress...
if [ $1 = "7z" ]; then
    echo "Recursion neatly sidestepped - no 7z filetypes ya scurvy seadog! =P"
    exit 0
fi	
 
echo "Starting Zipeach..."
 
# For each file with the given extension in the current directory...
for file in ./*.$1; do
 
# If a file exists with given extension...
if [ -e "$file" ]; then
 
# Compress the file with maximum compression (-mx9) and use multiple threads for multiCPU machines (-mmt)
# NOTE: Remove -mmt flag to run this on a single CPU box...
7z a -mx9 -mmt "$file".7z "$file"
 
# Increment our file counter
let count+=1
else
# If no file of required extension has been found then notify user and quit
echo "No files of extension .$1 found in current directory!"
exit 0
 
fi # End of if file exists condition
 
done # End of for each file loop
 
# Exit when all files compressed
echo # Cheap blank line =P
echo "Zipeach completed. $count files of extension .$1 found and compressed."
   exit 0
 
else
# No extension parameter given? No worky...
echo
echo 'Please run the script with an extension to compress i.e. "zipeach.sh n64" to compress each .n64 file into its own 7z archive.'
exit 0
fi

http://r3dux.org/2009/04/how-to-compress-a-directory-of-files-into-individual-archives/

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Compress 7z files individually 03.05.15

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