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Forked from alecbedzir/scp-speed-test.sh
Created January 1, 2025 23:31
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[speed test] Test ssh connection speed
#!/bin/bash
# scp-speed-test.sh
# Author: Alec Jacobson alecjacobsonATgmailDOTcom
# http://www.alecjacobson.com/weblog/?p=635
#
# Test ssh connection speed by uploading and then downloading a 10000kB test
# file (optionally user-specified size)
#
# Usage:
# ./scp-speed-test.sh user@hostname [test file size in kBs]
#
# Port for scp/ssh
ssh_port=22
ssh_server=$1
test_file=".scp-test-file"
# Optional: user specified test file size in kBs
if test -z "$2"
then
# default size is 10kB ~ 10mB
test_size="10000"
else
test_size=$2
fi
# generate a 10000kB file of all zeros
echo "Generating $test_size kB test file..."
`dd if=/dev/zero of=$test_file bs=$(echo "$test_size*1024" | bc) \
count=1 &> /dev/null`
# upload test
echo "Testing upload to $ssh_server..."
up_speed=`scp -v $test_file scp://$ssh_server:$ssh_port/$test_file 2>&1 | \
grep "Bytes per second" | \
sed "s/^[^0-9]*\([0-9.]*\)[^0-9]*\([0-9.]*\).*$/\1/g"`
up_speed=`echo "($up_speed*0.0009765625*100.0+0.5)/1*0.01" | bc`
# download test
echo "Testing download from $ssh_server..."
down_speed=`scp -v scp://$ssh_server:$ssh_port/$test_file $test_file 2>&1 | \
grep "Bytes per second" | \
sed "s/^[^0-9]*\([0-9.]*\)[^0-9]*\([0-9.]*\).*$/\2/g"`
down_speed=`echo "($down_speed*0.0009765625*100.0+0.5)/1*0.01" | bc`
# clean up
echo "Removing test file on $ssh_server..."
`ssh -p $ssh_port $ssh_server "rm $test_file"`
echo "Removing test file locally..."
`rm $test_file`
# print result
echo ""
echo "Upload speed: $up_speed kB/s"
echo "Download speed: $down_speed kB/s"
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