随笔分类 -  linux命令

摘要：Linux ubuntu 3.2.0-23-generic-pae #36-Ubuntu SMP Tue Apr 10 22:19:09 UTC 2012 i686 i686 i386 GNU/Linux一开始只是试用了export http_proxy=http://ip:port，然后执行sudo -E pip install requests的时候总是报 Cannot fetch index base URL http://pypi.python.org/simple/的错误，各种无奈，最后突然想到可能是http重定向到https的问题。再次exporthttps_proxy=http: 阅读全文

摘要：Learn fromstackexchangeHighlight the three last updated files in ls outputgrep --color -E --"$(ls -rtl | tail -n3)|$"<(ls -l)orls -l|grep --color -E "$(ls -rtl | tail -n3)|$"It uses grep with highlight on inputls -land uses a regular expression to search for either of the inpu 阅读全文

摘要：1 add write permission to /etc/sudoers file2 add your login in under these lines:# User privilege specificationroot ALL=(ALL) ALLyourlogingALL=(ALL) ALL3 restore the original file permission 阅读全文

摘要：We can edit the GRUB config to start the Ubuntu from text interface, by doing this the performance should be better.1 grant write permission to grub.cfg filesudo chmod +w /boot/grub/grub.cfg2 edit the cnfg file and add the text loginsudo vi grub.cfgAdd "text" at the end of this line:linux 阅读全文