Enable coredump file in Cent OS 7

Refer to
http://ephrain.pixnet.net/blog/post/55537038-%5blinux%5d-%E9%96%8B%E5%95%9F-core-dump-%E8%88%87%E8%A8%AD%E5%AE%9A%E7%94%A2%E7%94%9F-core-dump-%E7%9A%84%E7%A8%8B%E5%BC%8F

PDF 處理工具 pdftk in CentOS 7

下載篇:
https://www.linuxglobal.com/pdftk-works-on-centos-7/

指令篇:
http://seisman.info/introduction-to-pdftk.html

install FTP in CentOS

Refer to
http://luyaku.pixnet.net/blog/post/188199646-vsftpd%EF%BC%9Aftp-server-%E5%AE%89%E8%A3%9D%E8%88%87%E8%A8%AD%E5%AE%9A

install Samba 4.4.4 in CentOS

yum --nogpgcheck localinstall samba-common-libs-4.4.4-14.el7_3.x86_64.rpm samba-libs-4.4.4-14.el7_3.x86_64.rpm samba-common-tools-4.4.4-14.el7_3.x86_64.rpm libsmbclient-4.4.4-14.el7_3.x86_64.rpm samba-client-4.4.4-14.el7_3.x86_64.rpm samba-4.4.4-14.el7_3.x86_64.rpm libwbclient-4.4.4-14.el7_3.x86_64.rpm samba-client-libs-4.4.4-14.el7_3.x86_64.rpm samba-common-4.4.4-14.el7_3.noarch.rpm

CentOS 7更新後的暫純檔位置

/var/cache/yum/x86_64/7/updates/packages

install Display setting tool in CentOS 7

yum group install "GNOME Desktop"

Refer to
http://www.itzgeek.com/how-tos/linux/centos-how-tos/install-gnome-gui-on-centos-7-rhel-7.html

ouput the standard output to variable

1. 引入library
import subprocess

2. 定義函數
def get_cmd_line_results(input_string):
    os.chdir(INET_DIR)
    proc = subprocess.Popen(input_string, stdout=subprocess.PIPE, shell=True)
    #"git symbolic-ref HEAD"
    (out, err) = proc.communicate()
    os.chdir(CUR_DIR)
    return out[:-1]



3. 在主程式內容呼叫
inet_branch = get_cmd_line_results("git symbolic-ref HEAD")