How to install leveldb on ubuntu

gistfile1.sh

sudo apt-get install libsnappy-dev

wget https://leveldb.googlecode.com/files/leveldb-1.9.0.tar.gz
tar -xzf leveldb-1.9.0.tar.gz
cd leveldb-1.9.0
make
sudo mv libleveldb.* /usr/local/lib
cd include
sudo cp -R leveldb /usr/local/include
sudo ldconfig

git clone https://github.com/google/leveldb.git
cd leveldb/
make

sudo scp -r out-static/lib* out-shared/lib* /usr/local/lib/

cd include/
sudo scp -r leveldb /usr/local/include/
sudo ldconfig

man scp

 -r      Recursively copy entire directories.  Note that scp follows symbolic links encountered in the tree traversal.

$ cd leveldb
$ ls -l out-static/lib* out-shared/lib*
lrwxrwxrwx 1 root root     18 Nov  1 16:22 out-shared/libleveldb.so -> libleveldb.so.1.20
lrwxrwxrwx 1 root root     18 Nov  1 16:22 out-shared/libleveldb.so.1 -> libleveldb.so.1.20
-rwxrwxr-x 1 root root 375591 Nov  1 16:22 out-shared/libleveldb.so.1.20
-rw-rw-r-- 1 root root 696422 Nov  1 16:22 out-static/libleveldb.a
-rw-rw-r-- 1 root root  48750 Nov  1 16:22 out-static/libmemenv.a

$ sudo rm -f /usr/local/lib/libleveldb*
$ sudo scp -r out-static/lib* out-shared/lib* /usr/local/lib/


$ ls -l /usr/local/lib/libleveldb*
-rw-r--r-- 1 root root 695164 Nov  1 16:53 /usr/local/lib/libleveldb.a
lrwxrwxrwx 1 root root     18 Nov  1 16:55 /usr/local/lib/libleveldb.so -> libleveldb.so.1.20
lrwxrwxrwx 1 root root     18 Nov  1 16:55 /usr/local/lib/libleveldb.so.1 -> libleveldb.so.1.20
-rwxr-xr-x 1 root root 418437 Nov  1 16:53 /usr/local/lib/libleveldb.so.1.20

thanks for your help!

Actually when you clone leveldb , there is no more a makefile, so the steps are true @nextkitt but need to add some commands to generate the makefile first !

What commands are required to generate the (missing) makefile?

you can install leveldb on ubuntu using libleveldb-dev instead. Work for me:
sudo apt-get install libleveldb-dev

sudo apt-get install python3-pip python3-dev && python3 -m pip install -U leveldb