Ein Shellscript, mit dem man Dateien in zufaelliger Anzahl, Groesse und Namen erstellen kann.
Code
#!/bin/bash | |
#generate random files | |
| |
if [ ! $# -gt 0 ]; then | |
echo "usage: $0 <numfiles> [<blocksize> <maxblocks>]" | |
echo " <numfiles>: number of files to create," | |
echo " <blocksize>: size of file blocks (default 1024 bytes)" | |
echo " <maxblocks>: maximum number of blocks per file (default 100)" | |
echo "" | |
echo "Parameters after the third provided number are ignored." | |
echo "" | |
exit | |
fi | |
| |
NUMFILES=$1 | |
if test "$2" == ""; then | |
BLOCKSIZE=1024 | |
else | |
BLOCKSIZE=$2 | |
fi | |
echo Using blocksize $BLOCKSIZE | |
| |
if test "$3" == ""; then | |
MAXBLOCKS=100 | |
else | |
MAXBLOCKS=$3 | |
fi | |
echo Using max blocks $MAXBLOCKS | |
| |
for I in $(seq 1 $NUMFILES) | |
do | |
echo $((($RANDOM % $MAXBLOCKS) +1)) | |
dd if=/dev/urandom of=testfile.$I.$RANDOM.bin bs=$BLOCKSIZE count=0 seek=$((($RANDOM % $MAXBLOCKS) + 1)) | |
done |
