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The crypt function takes a password, key, as a string, and a salt character array which is described below, and returns a printable ASCII string which starts with another salt. It is believed that, given the output of the function, the best way to find a key that will produce that output is to guess values of key until the original value of key is found.
If you don't have seq, you can use perl.
Easily removes line #2 in ~/.ssh/known_hosts.
Search in decimal rather than hex. od dumps the character list, cut to remove offsets, sort -u gives the used characters. seq gives the comparison list, but we need this sorted alphabetically for comm, which does the filtering. I drop to perl to convert back to characters (is there a better way?) and then use od to dump them in a print-safe format.
A different approach to the problem - maintain a small sorted list, print the largest as we go, then the top 10 at the end. I often find that the find and sort take a long time, and the large file might appear near the start of the find. By printing as we go, I get better feedback. The sort used in this will be much slower on perls older than 5.8.
Here's a perl version that only considers printable characters. Change the regex /[[:print:]]/ to look for different sets of delimiter characters.
This is especially useful to get crazy stuff like space characters copied to your pasteboard correctly.
Removes special characters (colors) in '^]]Xm' and '^]]X;Ym' format from file.
Use pipe ('input | perl [...]') or stream ('perl [...]
You can use 'cat -v infile' as 'input' to show special characters instead of interpreting (there is problem with non-ASCII chars, they are replaced by M-[char]).
This will also print the path to file which is not included in the other examples.
parse `lsmod' output and pass to `dot' drawing utility then finally pass it to an image viewer
This will create a new file with proper code formatting and all comments removed.
convert a unix timestamp to a human readable format.
Lists all the modules that were installed the "proper way". It also uses Perl 5.10(or higher)'s say command for less typing.
making it "sound" more "natural" language like -- additionally sorting the longest words alphabetically:
this approach is using:
* to get at all lines of input
* post-"for" structure
* short-circuit-or in sort: if the lengths are the same, then sort alphabetically otherwise don't even evaluate the right hand side of the or
* -C sets all input and ouput channels to utf8
dirrrty: use -p to chomp automatically, substitute all newlines away and then replace the "---" by a newline ? bingo!
s/// => s/// is just a cooler way to write s///, s/// which is just the small brother of s///; s/// (comma is an operator!)
the output of svn log is annoying to grep, since it spreads the useful info over multiple lines. This compacts the output down to one line so eg you can grep for a comment and see the rev, date & committer straight away.
Updated: MUCH shorter, easier to remember. Now it just replaces newlines with spaces, except on '---' lines.
Require: perl -MCPAN -e 'install Acme::POE::Tree'
with a semicolon text file map, apply multiple replace to a single file
added greedy trick in wildcard match (.*?) from
Calls the POSIX strerror() function to look up the meaning of integer ERRNOs set by some functions.