linux.md

General Linux Note

SSH

Interactive: ssh -t 127.0.0.1 python

Bash

login shell

Use bash -l

Example:

#!/bin/bash -l
# your script

heredoc

Main application: write block/multiline content to some file

<< EOFFFF > sy.txt
line 1
$TERM
EOFFFF

content in sy.txt:

line 1
xterm (maybe)

Change the beginning of the 1st line to << "EOFFFF" or even << E"OF"FFF or << EO'F'FFF to get the raw string $TERM in the 2nd line of sy.txt.