Useful Code Snippets

TensorFlow

Logging TensorFlow Data into a directory within cwd

#create directory first

import os
log_dir = os.path.join(os.getcwd(), "logs","log1")
print(log_dir)

writer = tf.summary.FileWriter(log_dir)
writer.add_graph(sess.graph) #sess is the current Tensorflow session

bash

Delete Files older than x days

find /path/to/files/ -type f -name '*.jpg' -mtime +30 -exec rm {} \;

First part is the path where your files are located. Don’t use wildcard * if you have a lot of files because you will get Argument list too long error. Second part -type is the file type f stands for files Third part -name is limiting *,jpg files Fourth part -mtime gets how many days the files older then will be listed. +30 is for files older then 30 days. Fifth part -exec executes a command. In this case rm is the command, {} gets the filelist and \; closes the command

Create Virtual Environment with virtualenv

virtualenv name_of_venv
source venv\Scripts\activate

Bash search text in files

grep -rnw '/path/to/somewhere/' -e 'pattern'
-r or -R is recursive,
-n is line number, and
-w stands for match the whole word.
-l (lower-case L) can be added to just give the file name of matching files.

pandas

Normalise columns in a dataframe

diabetes[cols_to_norm] = diabetes[cols_to_norm].apply(lambda x: (x - x.min())/(x.max()-x.min()))

git

Shallow cloning of git repo

git clone --depth=1 <git.repo>

javascript

Timestamp

var ts = Math.round((new Date()).getTime() / 1000);

##Misc

Vim Paste to Command Line

CTRL+R dann * oder "

mklink /J "C:\Link To Folder" "C:\Users\Name\Original Folder"

mklink /H linkname target

Source