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Full Discussion: Replace string and create new file multiple times
Top Forums UNIX for Dummies Questions & Answers Replace string and create new file multiple times Post 302974075 by pseudo.seppuku on Wednesday 25th of May 2016 12:17:54 PM
Old 05-25-2016
Replace string and create new file multiple times
First of all, apologies if this has already been answered elsewhere. I haven't quite been able to find what I'm looking for yet, so hopefully this won't come across as repetition.

I have a file consisting of ~100 nearly identical lines, each of which contains multiple instances of the string I need to replace. Let's say the string is simply "001". Each instance of the string within a single line has a slightly different pre/suffix that can be used for search purposes. I know sed is capable of addressing this, but I'm not sure how to proceed with the following steps...

I need to create a new file where the 001 is replaced with 002, while everything else in the line remains unchanged. This will go on until, say, 300 - thus generating 300 different files, each of which needs to be saved separately.

So the first file contains a list like this:

Code:
-file1 001.txt -file2 blah1.txt -outputx x001blah1 -outputy y001blah1
-file1 001.txt -file2 blah2.txt -outputx x001blah2 -outputy y001blah2
-file1 001.txt -file2 blah3.txt -outputx x001blah3 -outputy y001blah3

...saved as list001.txt. I need to replace the three instances of 001 with 002 and save that file as list002.txt, which would look like this:

Code:
-file1 002.txt -file2 blah1.txt -outputx x002blah1 -outputy y002blah1
-file1 002.txt -file2 blah2.txt -outputx x002blah2 -outputy y002blah2
-file1 002.txt -file2 blah3.txt -outputx x002blah3 -outputy y002blah3

And so on and so forth until list300.txt (this number is pre-defined).

If I were to do this manually, it would require searching and replacing over a thousand times. Is there a single script I can use to find, replace, and create all 300 files, without having to make and modify each one individually?
Last edited by pseudo.seppuku; 05-25-2016 at 01:23 PM..
 

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LEARN ABOUT DEBIAN

lltag_config

lltag_config(5) 						File Formats Manual						   lltag_config(5)

NAME

       config - Configuration file for lltag

DESCRIPTION

       The following options may be stored in /etc/lltag/config or the user's $HOME/.lltag/config, or in any file passed with --config.

       Such a configuration file may also be generated with --gencfg.

Obtaining tags
       format = "string"
	      Add  a user-defined format [-R].	Might be used multiple times.  Default is to guess if no user-defined formats and no default field
	      values are given.
       guess = <0/1>
	      Try to guess if user-defined formats do not match [-G].  Default is 0 (disabled) when no user-defined formats and no explicit values
	      are given.
       tag = <TAG=value>
	      Add an explicit tag [--tag].  Might be used multiple times.

Tweaking filename parsing
       no_path = <0/1>
	      Do not use file path when matching filename [-p].  Default is 0 (disabled).
       spaces = <0/1>
	      Allow no or multiple spaces [--spaces].  Default is 0 (disabled).

Cleaning obtained tags
       edit = <0/1>
	      Edit tags immediately [--edit].  Default is 0 (disabled).
       maj = <0/1>
	      Upcase first letters of words in tags [--maj].  Default is 0 (disabled).
       regexp = "s/from/to/"
	      Replace  from  with  to  in all tags.  title,number:s/from/to/ replaces in title and number tags only.  Might be used multiple times
	      [--regexp].  Default is to not apply any regexp.
       sep = "string"
	      Replace |-separated strings with space in tags.  Default is to not replace any separator.

Configuration of tag application
       type = <mp3|ogg|flac|none>
	      Force mp3, ogg of flac instead of by-extension detection [--mp3, --ogg and --flac].  Default is none.
       clear_tags = <0/1>
	      Clear all tags of audio files.  [--clear].  Default is 0 (disabled).
       append_tags = <0/1>
	      Append tags only instead of replacing old ones.  [--append].  Default is 0 (disabled).
       no_tagging = <0/1>
	      Do not actually tag files [--no-tagging].  Default is 0 (disabled).
       preserve_time = <0/1>
	      Preserve file modification time during tagging [--preserve-time].  Default is 0 (disabled).

Renaming
       rename_format = "string"
	      Rename file according to format [--rename].  Default is to not rename.
       rename_min = <0/1>
	      Lowcase tags before renaming [--rename-min].  Default is 0 (disabled).
       rename_regexp = "s/from/to/"
	      Replace from with to in all tags before renaming.  title,number:s/from/to/ replaces in title and number tags only.   Might  be  used
	      multiple times [--rename-regexp].  Default is to not apply any regexp.
       rename_sep = "string"
	      Replace spaces with a string in tags before renaming [--rename-sep].  Default is to not replace any separator.
       rename_slash = "string"
	      Replace slashes with a string in tags before renaming [--rename-slash].  Default is to replace with a dash.
       rename_ext = <0/1>
	      Assume the rename format provides an extension [--rename-ext].  Default is 0 (disabled).

Miscellaneous
       dry_run = <0/1>
	      Do nothing but show what would have been done [--dry-run].  Default is 0 (disabled).
       yes = <0/1>
	      Tag without asking for confirmation when guessing and rename without asking for confirmation [--yes].  Default is 0 (disabled).
       ask = <0/1>
	      Always ask for confirmation before tagging [--ask].  Default is 0 (disabled).
       recursive = <0/1>
	      Recursively traverse all given subdirectories [-R].  Default is 0 (disabled).
       verbose = <integer>
	      Message  verbosity  level [-v and -q].  Default is 0 (only important messages).  Other possible values are 1 (show usage information
	      when a menu is displayed for the first time) and 2 (always show usage information before a menu appears).

CDDB configuration
       cddb_server_name = hostname
	      Change the CDDB server name.  Default is www.freedb.org.
       cddb_server_port = <port>
	      Change the CDDB server port.  Default is 80 (HTTP).

SEE ALSO

       lltag(1)

       The config template file provided within the documentation directory.

AUTHOR

       Brice Goglin

								   NOVEMBER 2006						   lltag_config(5)
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