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sudo yum install libmpc-devel mpfr-devel gmp-devel | |
cd ~/Downloads | |
curl ftp://ftp.mirrorservice.org/sites/sourceware.org/pub/gcc/releases/gcc-4.9.2/gcc-4.9.2.tar.bz2 -O | |
tar xvfj gcc-4.9.2.tar.bz2 | |
cd gcc-4.9.2 | |
./configure --disable-multilib --enable-languages=c,c++ | |
make -j 4 | |
make install |
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//equivalent of "select count (distinct fieldName) from someTable" | |
db.someCollection.aggregate([{ $group: { _id: "$fieldName"} },{ $group: { _id: 1, count: { $sum: 1 } } } ]) |
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import paramiko | |
k = paramiko.RSAKey.from_private_key_file("/Users/whatever/Downloads/mykey.pem") | |
c = paramiko.SSHClient() | |
c.set_missing_host_key_policy(paramiko.AutoAddPolicy()) | |
print "connecting" | |
c.connect( hostname = "www.acme.com", username = "ubuntu", pkey = k ) | |
print "connected" | |
commands = [ "/home/ubuntu/firstscript.sh", "/home/ubuntu/secondscript.sh" ] | |
for command in commands: | |
print "Executing {}".format( command ) |
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# dropping a database via pymongo | |
from pymongo import Connection | |
c = Connection() | |
c.drop_database('mydatabase') | |
# drop a collection via pymongo | |
from pymongo import Connection | |
c = Connection() | |
c['mydatabase'].drop_collection('mycollection') |