---
title: "Console 筆記"
path: "Console 筆記"
---

{%hackmd @RintarouTW/About %}

# Console 筆記

# Prompt

## ANSI Color

https://blog.taylormcgann.com/tag/prompt-color/

## Powerlevel9k

https://github.com/Powerlevel9k/powerlevel9k

# vim

## Color Themes

https://vimcolors.com/

# bash

## check files exist or not

#!/bin/bash

if [ -e $1 ]
then
sed -e 's/old/new/g' "$1"
fi

## change all file names at once

# change files' extension

for file in *.txt;do
    b=`basename "${file}" .txt`
	mv "${b}.txt" "${b}.md"
done

# sed

**S**tream **Ed**itor

Most GNU tools don't support `lookahead`/`lookbehind` regex yet.

sed -E 's/\$\$(.+)\$\$$/$$
\1\
$$/g' filename

Delete the line which contains the keyword

sed -e '/@RintarouTW\//d' filename

Delete range of lines

sed '1,7d' filename

[More Examples](http://sed.sourceforge.net/sed1line.txt)

# find

find . -type f -name "*.md" ! -iname "ignore.file" -exec sed -i '' '/regex/' {} +

# awk

###### tags: `console` `bash` `sed` `find`