Category Archives: Linux

Add git branch name to bash prompt

Posted on 2017 年 03 月 23 日 by cowman.chiang

edit ~/.bash_profile

if [ -f $(xcode-select -p)/usr/share/git-core/git-completion.bash ]; then
    . $(xcode-select -p)/usr/share/git-core/git-completion.bash
    . $(xcode-select -p)/usr/share/git-core/git-prompt.sh
fi

#enables color in the terminal bash shell
export CLICOLOR=1

#sets up the color scheme for list
export LSCOLORS=ExFxCxDxBxegedabagacad

#sets up the prompt color (currently a green similar to linux terminal)
export PS1='\n\[\e[1;30m\]┌─\[\e[0m\]\[\e[01;343m\]\u@\h\[\e[00m\]:\[\e[01;34m\]\w\[\e[00m\]\n\[\e[1;30m\]└──\[\e[0m\]\$ \[\e[00;33m\]$(__git_ps1 "(%s)")\[\e[00m\]'

#enables color for iTerm
export TERM=xterm-color

if [ -f $(xcode-select -p)/usr/share/git-core/git-completion.bash ]; then

. $(xcode-select -p)/usr/share/git-core/git-completion.bash

. $(xcode-select -p)/usr/share/git-core/git-prompt.sh

#enables color in the terminal bash shell

export CLICOLOR=1

#sets up the color scheme for list

export LSCOLORS=ExFxCxDxBxegedabagacad

#sets up the prompt color (currently a green similar to linux terminal)

export PS1='\n\[\e[1;30m\]┌─\[\e[0m\]\[\e[01;343m\]\u@\h\[\e[00m\]:\[\e[01;34m\]\w\[\e[00m\]\n\[\e[1;30m\]└──\[\e[0m\]\$ \[\e[00;33m\]$(__git_ps1 "(%s)")\[\e[00m\]'

#enables color for iTerm

export TERM=xterm-color

Posted in CentOS, Git, Linux, Mac, Ubuntu | Leave a comment

Get timestamp in milliseconds

Posted on 2017 年 01 月 24 日 by cowman.chiang

echo $(($(date +%s%N)/1000000)) in Mac OS X, the command date does not support the %N flag, we can install coreutils using homebrew. brew install coreutils Then use gdate to get which we want. echo $(($(gdate +%s%N)/1000000))

Posted in Linux, Mac | Leave a comment

find unused files and delete them

Posted on 2017 年 01 月 16 日 by cowman.chiang

find /var/log/radius/radacct -type f -name “reply*” -mtime +60 -exec rm -rf {} \; -mtime N — more than N days without being edited -exec CMD {} \; — comands, {} means the files which be found.

Posted in Linux, Shell Script | Leave a comment

[Linux] sudo: sorry, you must have a tty to run sudo

Posted on 2016 年 08 月 22 日 by cowman.chiang

edit /etc/sudoers find ‘requiretty’ add username like this Defaults:webuser requiretty

Posted in Linux | Leave a comment

Delete the specific files in all subdirectories

Posted on 2016 年 02 月 26 日 by cowman.chiang

check the find result find . -name “*.bak” -type f delete it find . -name “*.bak” -type f -delete Ref. ask Ubuntu: How can I recursively delete all files of a specific extension in the current directory?

Posted in Linux | Leave a comment

[Linux] Sort the disk usage

Posted on 2016 年 01 月 21 日 by cowman.chiang

du -B M --max-depth=1 | sort -g

1 2	du -B M --max-depth=1 \| sort -g

Ref.: [ubuntu] 利用du搭配sort來查看磁碟使用空間]1

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Install aglio in Ubuntu 14.04

Posted on 2015 年 05 月 12 日 by cowman.chiang

Install nodejs Ref. NodeSource Node.js Binary Distributions

apt-get install -y nodejs nodejs-legacy

1 2	apt-get install -y nodejs nodejs-legacy

Install python

apt-get install python-dev

1 2	apt-get install python-dev

Install aglio Ref. Github : aglio

npm install -g aglio

1 2	npm install -g aglio

Posted in Aglio, Ubuntu | Leave a comment

[Apache HBase] Install Apache HBase in Ubuntu 14.04

Posted on 2015 年 03 月 22 日 by cowman.chiang

Java 1.7

add-apt-repository ppa:webupd8team/java
apt-get update
apt-get install oracle-java7-installer
apt-get install oracle-java7-set-default

add-apt-repository ppa:webupd8team/java

apt-get update

apt-get install oracle-java7-installer

apt-get install oracle-java7-set-default

Cloudera HBase Ref. installing-apache-hbase-on-ubuntu-for-standalone-mode Note. hbase tar file choose http://archive.apache.org/dist/hbase/hbase-0.98.5/hbase-0.98.5-hadoop1-bin.tar.gz (or http://ftp.mirror.tw/pub/apache/hbase/hbase-0.98.11/hbase-0.98.11-hadoop1-bin.tar.gz )

Posted in HBase, Ubuntu | Leave a comment

[Ubuntu] Enable exFAT support

Posted on 2015 年 03 月 22 日 by cowman.chiang

All you need is install the exfat-* packages.

sudo apt-get install exfat-fuse exfat-utils

1 2	sudo apt-get install exfat-fuse exfat-utils

Posted in Ubuntu | Leave a comment

[Ubuntu] Enable power saving in Lenovo X61

Posted on 2015 年 02 月 01 日 by cowman.chiang

Ref: http://www.webupd8.org/2014/04/prevent-your-laptop-from-overheating.html Because I installed Ubuntu 14.04 in my Lenovo X61. Although it could switch into the sleep mode after closing the lid. It’s not really using the power saving mode. So we must edit the GRUB file.

sudo vim /etc/default/grub

1 2	sudo vim /etc/default/grub

Find … Continue reading →

Posted in Ubuntu | Leave a comment

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