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From Hong Kong Observatory wap site ;)
I _think_ you were trying to delete files whether or not they had spaces. This would do that. You should probably be more specific though.
"get Hong Kong weather infomation from HK Observatory
From Hong Kong Observatory wap site ;)"
other one showed alot of blank lines for me
Use find's built-in ability to call programs.
find -maxdepth 1 -type f -name "*.7z" -print0 | xargx -0 -n 1 7zr e
would work, too.
Can be used to test error handling
There is no longer a need to add PGP keys for Ubuntu Launchpad PPA's.
The add-apt-repository command creates a new file for the PPA in /etc/sources.list.d/ then adds the PPA's keys to the apt keyring automatically. No muss, no fuss.
Replace DOS character ^M with newline using perl inline replace.
Shorter version with curl and awk
This will visit recursively all linked urls starting from the specified URL. It won't save anything locally and it will produce a detailed log.
Useful to find broken links in your site. It ignores robots.txt, so just use it on a site you own!
There's nothing particularly novel about this combination of find, grep, and wc, I'm just putting it here in case I want it again.
Shows useful informations about file descriptors in Squid web proxy
Used by virtualbox and others to create '.run' file.
this command will add the following two lines into the ~/.bash_aliases:
alias exit='pwd > ~/.lastdir;exit'
[ -n "$(cat .lastdir 2>/dev/null)" ] && cd "$(cat .lastdir)"
or redirect it to the ~/.bashrc if you like
Donno, I find it usefull. You may also define an alias for 'cd ~' like - alias cdh='cd ~'
sometimes you got conflicts using SSH (host changing ip, ip now belongs to a different machine) and you need to edit the file and remove the offending line from known_hosts. this does it much easier.
That's the key part.
I got this from http://www.macosxhints.com/article.php?story=20070715091413640. See that article for other other, more basic, tcsh-specific history-related settings.
Replace sed regular expressions with perl patterns on the command line.
The sed equivalent is: echo "sed -e"|sed -e 's/sed -e/perl -pe/'
This command deletes the "newline" chars, so its output maybe unusable :)
with grep for em:name rather than name, you will get much better result.
Useful in system where log files are compressed for archival purposes