Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
How to simulate curl using wget command?
Answer:
To simulate a simple curl command using wget, e.g. curl http://www.google.co.uk:
# wget -O- http://www.google.co.uk
To view the HTTP response header (i.e. more verbose), e.g. curl -v http://www.google.co.uk:
# wget -O- -S http://www.google.co.uk
Delete all trailing blank lines at end of file using sed
Answer:
Blank lines at end of a text file are mostly useless, you can remove them easily using sed:
# sed -e :a -e '/^\n*$/{$d;N;ba' -e '}'
Delete trailing spaces or tabs from end of each line
Answer:
To delete trailing spaces or tabs, i.e. whitespaces from end of each line, is easy with the sed command.
# sed 's/[ \t]*$//'
Underline the current line in vim
Answer:
Underline the current editing line in vim is very useful, to do so, follow the guide below.
1. Press [ESC] to get into command mode
2. Enter :set cursorline
Change user's timezone setting
Answer:
User can have their own timezone setting.
1. Firstly, you need to find out the timezone string by selecting interactively using the command tzselect command.
2. Append the string to the file ~/.profile
E.g.
# echo " TZ='Asia/Hong_Kong'; export TZ" >> ~/.profile
