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UNIX for Dummies Questions & Answers
Replace string and create new file multiple times
Post 302974092 by RavinderSingh13 on Wednesday 25th of May 2016 02:05:48 PM
05-25-2016
Moderator
Quote:
EGADS. This worked beautifully!
One minor question while I try to work out all the syntax: the two sets of files for comparison (what I previously referred to as 001.txt and blah1.txt) actually have the same numbering system - since there are hundreds of them - but with a different letter prefix for each set, i.e., a001..a300.txt and b001..b300.txt. I only want the numbers starting with a to increase without changing b. Where should I specify/add this prefix?
Sorry for the confusion!
---------- Post updated at 07:01 PM ---------- Previous update was at 06:47 PM ----------
Just tried it.
The search and replace bit works perfectly. It only creates a single new file though, called file02. However, it's a little strange because if I delete this file and run the script again, the replacement is called file03 (instead of file02 again). Hope that makes sense.
One minor question while I try to work out all the syntax: the two sets of files for comparison (what I previously referred to as 001.txt and blah1.txt) actually have the same numbering system - since there are hundreds of them - but with a different letter prefix for each set, i.e., a001..a300.txt and b001..b300.txt. I only want the numbers starting with a to increase without changing b. Where should I specify/add this prefix?
Sorry for the confusion!
---------- Post updated at 07:01 PM ---------- Previous update was at 06:47 PM ----------
Just tried it.
The search and replace bit works perfectly. It only creates a single new file though, called file02. However, it's a little strange because if I delete this file and run the script again, the replacement is called file03 (instead of file02 again). Hope that makes sense.That's because you haven't run it as a script and when you ran it as a command, variable named i's value will be there in memory of shell and it will take it from there. When you save this as a script and run this will not happen. As for file names I am still little confuse as you need to show like current_file_name--> new_file_name etc, I hope this helps you.
Thanks,
R. Singh
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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)