ddtxra/unix tricks.md

## unix tricks.md

      
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              unix tricks.md
            
          
    ####Search for files being modified in the last 24hours
find . -mtime -1 -ls | grep .log | sort | more

####Search for content in a specifiy file extension
find com.genebio.nextprot.plugin.entry -name '*.groovy' | xargs grep -i "Missing"

####Sort directory sizes
du -h --max-depth=1 | sort -hr

####To paste in a file
cat > filname | paste | crtl + D

SSH tunneling  then you can access the targethost by doing localhost:LOCALPORT

ssh user@host -f -L LOCALPORT:targethost:HOSTPORT -N

####Sniff HTTP packages
sudo tcpdump -A -s0 -ien0 port 80

####Find out which process is listening upon a port
netstat -tulpn | grep :9090

Copy public key to a machine in ssh

cat ~/.ssh/id_rsa.pub | ssh username@host "cat >> ~/.ssh/authorized_keys"