Mercurial > repos > bgruening > text_processing
diff readme.rst @ 0:ec66f9d90ef0 draft
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author | bgruening |
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date | Thu, 05 Sep 2013 04:58:21 -0400 |
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children | a4ad586d1403 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/readme.rst Thu Sep 05 04:58:21 2013 -0400 @@ -0,0 +1,86 @@ +These are Galaxy wrappers for common unix text-processing tools +=============================================================== + +The initial work was done by Assaf Gordon and Greg Hannon's lab ( http://hannonlab.cshl.edu ) +in Cold Spring Harbor Laboratory ( http://www.cshl.edu ). + + +The tools are: + +* awk - The AWK programmning language ( http://www.gnu.org/software/gawk/ ) +* sed - Stream Editor ( http://sed.sf.net ) +* grep - Search files ( http://www.gnu.org/software/grep/ ) +* sort_columns - Sorting every line according to there columns +* GNU Coreutils programs ( http://www.gnu.org/software/coreutils/ ): + * sort - sort files + * join - join two files, based on common key field. + * cut - keep/discard fields from a file + * unsorted_uniq - keep unique/duplicated lines in a file + * sorted_uniq - keep unique/duplicated lines in a file + * head - keep the first X lines in a file. + * tail - keep the last X lines in a file. + +Few improvements over the standard tools: + + * EasyJoin - A Join tool that does not require pre-sorted the files ( https://github.com/agordon/filo/blob/scripts/src/scripts/easyjoin ) + * Multi-Join - Join multiple (>2) files ( https://github.com/agordon/filo/blob/scripts/src/scripts/multijoin ) + * Find_and_Replace - Find/Replace text in a line or specific column. + * Grep with Perl syntax - uses grep with Perl-Compatible regular expressions. + * HTML'd Grep - grep text in a file, and produced high-lighted HTML output, for easier viewing ( uses https://github.com/agordon/filo/blob/scripts/src/scripts/sort-header ) + + +Requirements +------------ + +1. Coreutils vesion 8.19 or later. +2. AWK version 4.0.1 or later. +3. SED version 4.2 *with* a special patch +4. Grep with PCRE support + +These will be installed automatically with the Galaxy Tool Shed. + + +------------------- +NOTE About Security +------------------- + +The included tools are secure (barring unintentional bugs): +The main concern might be executing system commands with awk's "system" and sed's "e" commands, +or reading/writing arbitrary files with awk's redirection and sed's "r/w" commands. +These commands are DISABLED using the "--sandbox" parameter to awk and sed. + +User trying to run an awk program similar to: + BEGIN { system("ls") } +Will get an error (in Galaxy) saying: + fatal: 'system' function not allowed in sandbox mode. + +User trying to run a SED program similar to: + 1els +will get an error (in Galaxy) saying: + sed: -e expression #1, char 2: e/r/w commands disabled in sandbox mode + +That being said, if you do find some vulnerability in these tools, please let me know and I'll try fix them. + +------------ +Installation +------------ + +Should be done with the Galaxy `Tool Shed`_. + +.. _`Tool Shed`: http://wiki.galaxyproject.org/Tool%20Shed + + +---- +TODO +---- + +- unit-tests +- uniqu will get a new --group funciton with the 8.22 release, its currently commended out +- also shuf will get a major improved performance with large files http://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=commit;h=20d7bce0f7e57d9a98f0ee811e31c757e9fedfff + we can remove the random feature from sort and use shuf instead +- move some advanced settings under a conditional, for example the cut tools offers to cut bytes + + + + +