unzipping multiple files at once

Question

I have thousands of .zip files in one folder, I want to extract those using command or script, each .zip file to it own folder. I wish to run the unzip process multiple times. How can i do that?

Answer 1

xargs with -P n can be used to run a program in parallel for multiple files. The following, for example, runs 8 instances of unzip in parallel.

cd directory-with-zip-files
find . -name '*.zip' -print0 | xargs -0 -n 1 -P 8 unzip

Answer 2

This will do the trick, run this on terminal

for f in *.zip; do unzip $f -d ${f%.*}; done

Ok redefined answer taking into consideration the comment:

In one file named unzip.sh put this code:

#!/bin/bash
LEN=${#}
COUNT=0
PROCESSES=20
ITERATE=$(( LEN/PROCESSES ))
for ((i=0;i<=ITERATE;i++))
do 
    LOWER=$(( i*PROCESSES+1 ))
    HIGHER=$(( (i+1)*PROCESSES ))
    ./aux.sh ${@:$LOWER:$HIGHER} &!
done

In one file named aux.sh put this code:

#!/bin/bash
for f in $@; do unzip $f -d ${f%.*}; done

Remember to set both files with executions permissions by typing in the terminal: chmod +x unzip.sh aux.sh Now all you have to do is executing the script by typing in the terminal: ./unzip.sh *.zip

Answer 3

If the files inside the zip files are in their respective folders, an easier solution would be to type this in the opened terminal of the zip files' folder:

unzip "*.zip"