unarchive files

Dec 14
2009
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a sample BASH function (usually resides in $HOMES/.bashrc)

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extract () {
        if [ -f $1 ] ; then
                case $1 in
                        *.tar.bz2) tar xjf $1;;
                        *.tar.gz) tar xzf $1;;
                        *.bz2) bunzip2 $1;;
                        *.rar) rar x $1;;
                        *.gz) gunzip $1;;
                        *.tar) tar xf $1;;
                        *.tbz2) tar xjf $1;;
                        *.tgz) tar xzf $1;;
                        *.zip) unzip $1;;
                        *.Z) uncompress $1;;
                        *) echo "'$1' cannot be extracted via extract()";;
                esac
        else
                echo "'$1' is not a valid file"
        fi
}
Written by Vidul in: SA, bash | Tags:

the actual meaning of “Merry Christmas”

Dec 14
2009
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import re
 
greeting = "Merry Christmas"
 
greeting_list = map(chr, [ord(i) - len(greeting) - 1 for i in greeting])
greeting_list = set(filter(lambda x: re.match('[a-z]|[A-Z]', x), greeting_list))
 
# greeting_list is set(['c', 'b', 'd', 'i', 'Q', 'U', 'Y', 'X'])
# the 1st 3 elements are not clear to me: c,b,d
# 'i' means 'I', 'Q' means 'question', 'U' means 'you', 'Y' means 'why', 'X' means 'Christmas'
# which makes the compound: 'I question you - why Christmas?'

Right?

Written by Vidul in: Python, news | Tags:

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