Some Useful Commands — Linux, Python, Pip
2 min readDec 3, 2021
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Search specific text in current : <grep -RilE “text1|text2”>
Name of Operating System: <uname -a> and <hostnamectl>
Basic ls command
* ls -ltr - reverse output order, which is particularly useful when sorting by date* ls -lS - sort by file size* ls -1 | wc -l - Return No of files
Check difference in two directory: <diff -q dir1/ dir2/>
Command to copy directory structure without content:
source=/home/folder1/target=/home/folder2/rsync -av -f"+ */" -f"- *" "$source" "$target"
Host Jupyter Notebook on Server (to make it accessible by other team members):
nohup jupyter notebook --ip=a.b.c.d --port=8089 --Notebook.token=password > /home/temp/jupyter_nb.log &Replace Value in multiple file
## Replace "aakash" with "aakash_goel"
sed -i "s/aakash/aakash_goel/g" *.txtTop Command
* Use Top command and Press 1 to see CPU Usage
PS Command
## Check Process Usage by CPU, Memory
ps -eo pcpu,pid,user,args | sort -k 1 -r | head -3
ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head -3## Get Process ID (abc.py)
ps -aux | grep python | grep abc
Nohup Command
## Run Python Program
nohup python abc.py > temp_nohup.log 2>&1 &## Run and print in .log file using -u
nohup python -u main.py > model.log &## Run Shell File
nohup sh abc.sh > temp_nohup.log 2>&1 &
Pip Command
pip install --upgrade pip# Upgrade to a specific version
python -m pip install pip==18.1## Version of pip
pip --version## get requirements.txt
/datascience/user/env/bin/pip freeze > requirements.txt## Install all packages in req.txt
pip install -r requirements.txt##
