Some random bash scripts I've randomly written and want to save for future references
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#!/bin/bash
TARGET_REMOTE_USER=adm0
TARGET_OWNER_USER=owner
TARGET_REMOTE_PATH=/usr/disp/
export PATH
if [ "$#" -ne "1" ] && [ "$#" -ne "2" ] && [ "$#" -ne "3" ]
then
echo "$0 --help "
exit 0
fi
if [ "$1" == "--help" ]
then
echo "sshdb - utility for simpler database management between local machines vie authorized_keys and rsync."
echo " "
echo "USAGE: sshdb [-FLAG] [ARGS..]"
echo " "
echo "FLAGS:"
echo "--help Show this sheet."
echo " "
echo "-g [IP] [|PATH] Copy database from remote machine to PATH/"
echo " or ./ if the PATH argument is missing."
echo " Example: sshdb -g 10.64.184.60"
echo " sshdb -g 10.64.184.60 ./tempdb/"
echo " "
echo "-l [IP] [|FILE] Copy database from FILE to remote machine"
echo " and execute initial maintenance from"
echo " ./database.sqlite if the FILE argument is missing."
echo " Example: sshdb -l 10.64.184.60"
echo " sshdb -l 10.64.184.60 /home/myuser/folder/folder2/database.sqlite"
echo " "
echo "-c [IP1] [IP2] Copy database from IP1 to IP2 and execute initial maintenance."
echo " Example: sshdb -c 172.23.16.176 10.64.184.60"
echo " "
exit 0
fi
# -----------------------------------
if [ "$1" == "-g" ]
then
if [ -z "$(cat ~/.ssh/id_rsa.pub)" ]
then
echo "SSH key is needed. Proceed to generating it by ssh-keygen."
exit 1
fi
if [ -z "$2" ]
then
echo "Target IP is needed. Run $0 --help."
exit 1
fi
LOCAL_DATABASE_PATH="./"
if [ ! -z "$3" ]
then
LOCAL_DATABASE_PATH="$3"
fi
if [ ! -d $LOCAL_DATABASE_PATH ]
then
echo "Path $LOCAL_DATABASE_PATH is missing."
exit 1
fi
ssh-copy-id "$TARGET_REMOTE_USER"@"$2"
ssh "$TARGET_REMOTE_USER"@"$2" "sudo apt install rsync"
rsync "$TARGET_REMOTE_USER"@"$2":${TARGET_REMOTE_PATH}database.sqlite $LOCAL_DATABASE_PATH
exit 0
fi
# -----------------------------------
if [ "$1" == "-l" ]
then
if [ -z "$(cat ~/.ssh/id_rsa.pub)" ]
then
echo "SSH key is needed. Proceed to generating it by ssh-keygen."
exit 1
fi
if [ -z "$2" ]
then
echo "Target IP is needed. Run $0 --help."
exit 1
fi
LOCAL_DATABASE_FILE="./database.sqlite"
if [ ! -z "$3" ]
then
LOCAL_DATABASE_FILE="$3"
fi
if [ ! -f $LOCAL_DATABASE_FILE ]
then
echo "File $LOCAL_DATABASE_FILE is missing."
exit 1
fi
ssh-copy-id "$TARGET_REMOTE_USER"@"$2"
ssh "$TARGET_REMOTE_USER"@"$2" "sudo apt install rsync"
rsync $LOCAL_DATABASE_FILE "$TARGET_REMOTE_USER"@"$2":/home/"$TARGET_REMOTE_USER"/
ssh "$TARGET_REMOTE_USER"@"$2" "sudo mv -f ./database.sqlite ${TARGET_REMOTE_PATH}database.sqlite && sudo chown ${owner}:${owner} ${TARGET_REMOTE_PATH}database.sqlite"
exit 0
fi
# -----------------------------------
if [ "$1" == "-c" ]
then
if [ -z "$(cat ~/.ssh/id_rsa.pub)" ]
then
echo "SSH key is needed. Proceed to generating it by ssh-keygen."
exit 1
fi
if [ -z "$2" ]
then
echo "Target IP of the first machine is needed. Run $0 --help."
exit 1
fi
if [ -z "$3" ]
then
echo "Target IP of the second machine is needed. Run $0 --help."
exit 1
fi
ssh-copy-id "$TARGET_REMOTE_USER"@"$2"
ssh "$TARGET_REMOTE_USER"@"$2" "sudo apt install rsync"
rsync "$TARGET_REMOTE_USER"@"$2":${TARGET_REMOTE_PATH}database.sqlite ./.temp.sqlite
ssh-copy-id "$TARGET_REMOTE_USER"@"$3"
ssh "$TARGET_REMOTE_USER"@"$3" "sudo apt install rsync"
rsync ./.temp.sqlite "$TARGET_REMOTE_USER"@"$3":/home/"$TARGET_REMOTE_USER"/
ssh "$TARGET_REMOTE_USER"@"$3" "sudo mv -f ./database.sqlite ${TARGET_REMOTE_PATH}database.sqlite && sudo chown ${owner}:${owner} ${TARGET_REMOTE_PATH}database.sqlite"
rm -f ./.temp.sqlite
exit 0
fi