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]*$//'
How to update RubyGems?
Answer:
To update the the RubyGems installed in Ubuntu, enter the command below:
# sudo gem update --systemNow
That's it.
How to get the full list of Ubuntu's managed Perl modules?
Answer:
The full list of Ubuntu's managed Perl modules is here (for lucid): http://packages.ubuntu.com/lucid/perl/
You can use apt-get into install those modules, instead of CPAN. The advantage is you can remove them easier with the apt-get command, while for CPAN, you need to do it manually.
