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Full Discussion: Multiple Substitutions across Multiple Files
Top Forums Shell Programming and Scripting Multiple Substitutions across Multiple Files Post 302761271 by Alexander4444 on Friday 25th of January 2013 11:21:26 AM
Old 01-25-2013
Multiple Substitutions across Multiple Files
Hey everyone! I am determining the best method to do what the subject of this thread says. I only have pieces to the puzzle right now. Namely this:

grep -rl "expression" . | xargs open

(I should mention that the intention is to grep through many files containing the "expression" and return the files themselves for subsequent editing.)

and this:

... | for line in source; do sed 's/expression/replacement/g' > tmp; done

Except that the issue is how to open each file, substitute, and save to the same respective files, not just save to one big tmp file. :P This is eluding me. I realize:

mv tmp > original_file

can be done for each case, but this seems to require a level of scripting knowledge I currently lack. Thanks for any help/suggestions/advice on this!
 

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LEARN ABOUT DEBIAN

xword

XWORD(1)						      General Commands Manual							  XWORD(1)

NAME

       xword - do crossword puzzles in the Across Lite format

SYNOPSIS

       xword [puzzlefile.puz]...

DESCRIPTION

       Xword  is  a  GTK program for doing crossword puzzles. It can read and write puzzles in the Across Lite file format. Consequently, it works
       well for doing puzzles from The New York Times. As well as a clock, it supports printing. It also auto-saves puzzles as you solve  them	so
       that you can return to partially completed puzzles.

USAGE

       First, locate a puzzle on the web. The best place to go is the web site of The New York Times. However, it costs money to access these puz-
       zles. Free puzzles are available from The Houston Chronicle.

       After you have found a puzzle, click on it in your web browser. Xword will open the puzzle and you can start solving. You can  also  choose
       to save the puzzle on your hard disk. Then you can open the puzzle using Xword later.

       After  you  have  worked  on a puzzle for a while, you may want to save your work.  There are two ways to save. The easiest way is to close
       Xword without any further action. The next time you open the same puzzle (either by opening the .puz file or by clicking the same  link	on
       the  web),  you	will  be  asked whether you want to continue where you left off. If you choose to continue, all your correct and incorrect
       answers will be saved, as well as the time on the clock.

       However, this technique only works for opening the puzzle on the same computer.	If you need to open the saved puzzle on a  different  com-
       puter, then you can choose "Save" from the "File" menu. The saved file can be opened with Xword on any computer. However, incorrect answers
       and the time on the clock will not be saved.

       To print a puzzle, select "Print" from the "File" menu. You can see what the printed puzzle will look like by clicking "Print Preview". You
       can select the paper size and orientation by clicking on the "Paper" tab (puzzles are usually easier to read in landscape mode).

       Sometimes  a  puzzle  will  be  locked  so that the answers are unavailable.  Unfortunately, Xword's support for locked puzzles is somewhat
       flaky. When using a locked puzzle, you should not click on the "Check" or "Solve" buttons, since they will give incorrect information. How-
       ever,  you can still use Xword to enter answers for a locked puzzle. Later, when an unlocked version of the puzzle is released (usually the
       next day), open it using Xword. When asked, choose to continue where you left off. Now you can use the "Check" and "Solve" buttons  to  see
       how  well  you  did. Sometimes crosswords will come with a four-digit code to unlock a locked puzzle file. This code is not needed by Xword
       ...

       For more information, see the project home page at <https://alioth.debian.org/projects/xword/>.

AUTHOR

       xword was originally written by Bill McCloskey <bill.mccloskey@gmail.com>.

       This manual page was written by John Sullivan <johns@debian.org>, for the Debian project (but may be used by others).

BUGS

       Please report bugs to <https://alioth.debian.org/tracker/?atid=413106&group_id=100419&func=browse>.

								 December 3, 2007							  XWORD(1)
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