kevinveenbirkenbach/linux-image-manager
1
0
Fork 0
mirror of https://github.com/kevinveenbirkenbach/linux-image-manager.git synced 2024-11-26 00:41:04 +01:00
Code Issues Packages Projects Releases Wiki Activity

Optimized code

Browse Source
This commit is contained in:
Kevin Veen-Birkenbach 2020-12-25 13:49:03 +01:00
parent 021e6b2812
commit 9e66e2271f
3 changed files with 3 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
scripts/analyze/client/not_encrypted_ssh_keys.sh
View File

@ -2,9 +2,9 @@
# @see https://stackoverflow.com/questions/32408820/how-to-list-files-and-match-first-line-in-bash-script # @see https://stackoverflow.com/questions/32408820/how-to-list-files-and-match-first-line-in-bash-script
# @see https://unix.stackexchange.com/questions/298590/using-find-non-recursively # @see https://unix.stackexchange.com/questions/298590/using-find-non-recursively
# @see https://security.stackexchange.com/questions/129724/how-to-check-if-an-ssh-private-key-has-passphrase-or-not # @see https://security.stackexchange.com/questions/129724/how-to-check-if-an-ssh-private-key-has-passphrase-or-not
find $HOME/.ssh -maxdepth 1 -type f -print0 | while IFS= read -r -d $'\0' file; do find "$HOME/.ssh" -maxdepth 1 -type f -print0 | while IFS= read -r -d $'\0' file; do
if [[ $(head -n1 "$file") == "-----BEGIN OPENSSH PRIVATE KEY-----" ]]; then if [[ $(head -n1 "$file") == "-----BEGIN OPENSSH PRIVATE KEY-----" ]]; then
echo "Test file: $file" echo "Test file: $file"
ssh-keygen -y -P "" -f $file ssh-keygen -y -P "" -f "$file"
fi fi
done done

37
scripts/analyze/system/dd_optimal_bs_test.sh
View File

@ -1,37 +0,0 @@
#!/bin/bash
# Wrong scripped but good as a base to optimize later. See http://blog.tdg5.com/tuning-dd-block-size/
# Since we're dealing with dd, abort if any errors occur
set -e
TEST_FILE=${1:-dd_obs_testfile}
[ -e "$TEST_FILE" ]; TEST_FILE_EXISTS=$?
TEST_FILE_SIZE=134217728
# Header
PRINTF_FORMAT="%8s : %s\n"
printf "$PRINTF_FORMAT" 'block size' 'transfer rate'
# Block sizes of 512b 1K 2K 4K 8K 16K 32K 64K 128K 256K 512K 1M 2M 4M 8M 16M 32M 64M
for BLOCK_SIZE in 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576 2097152 4194304 8388608 16777216 33554432 67108864
do
# Calculate number of segments required to copy
COUNT=$(($TEST_FILE_SIZE / $BLOCK_SIZE))
if [ $COUNT -le 0 ]; then
echo "Block size of $BLOCK_SIZE estimated to require $COUNT blocks, aborting further tests."
break
fi
# Create a test file with the specified block size
DD_RESULT=$(dd if=/dev/zero of=$TEST_FILE bs=$BLOCK_SIZE count=$COUNT 2>&1 1>/dev/null)
echo $DD_RESULT
# Extract the transfer rate from dd's STDERR output
TRANSFER_RATE=$(echo $DD_RESULT | \grep --only-matching -E '[0-9.]+ ([MGk]?B|bytes)/s(ec)?')
# Clean up the test file if we created one
[ $TEST_FILE_EXISTS -ne 0 ] && rm $TEST_FILE
# Output the result
printf "$PRINTF_FORMAT" "$BLOCK_SIZE" "$TRANSFER_RATE"
done

1
scripts/encryption/storage/raid1/mount_on_boot.sh
View File

@ -1,6 +1,7 @@
#!/bin/bash #!/bin/bash
# shellcheck disable=SC1090 # Can't follow non-constant source. Use a directive to specify location. # shellcheck disable=SC1090 # Can't follow non-constant source. Use a directive to specify location.
# shellcheck disable=SC2154 # Referenced but not assigned # shellcheck disable=SC2154 # Referenced but not assigned
# shellcheck disable=SC2015 #Deactivate bool hint
source "$(dirname "$(readlink -f "${0}")")/base.sh" || (echo "Loading base.sh failed." && exit 1) source "$(dirname "$(readlink -f "${0}")")/base.sh" || (echo "Loading base.sh failed." && exit 1)
info "Automount raid1 encrypted storages..." && info "Automount raid1 encrypted storages..." &&
set_raid1_devices_mount_partition_and_mapper_paths && set_raid1_devices_mount_partition_and_mapper_paths &&