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Top Forums UNIX for Beginners Questions & Answers How do you preserve the max length of a line after replacing a specific value? Post 303041410 by MadeInGermany on Friday 22nd of November 2019 02:43:57 PM
Old 11-22-2019
Include the existing trailing spaces in order to replace(=remove) them:
Code:
s/ID3 */$NEW${SPC:${#NEW}}/

A variant with printf:
Code:
sed -i "s/ID3 */$(printf "%-10s" "$NEW")/" TESTFILE_TEST

This User Gave Thanks to MadeInGermany For This Post:
 

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EYED3(1)																  EYED3(1)

NAME
eyeD3 - displays and manipulates id3-tags on mp3 files SYNOPSIS
eyeD3 [options] file [file...] eyeD3 [options] dir [dir...] DESCRIPTION
eyeD3 Manipulates ID3 tags in mp3 files and is able to read/write and convert between ID3 v1.0, v1.1, v2.3 and v2.4 tags. High-level access is provided to most frames, including APIC (i.e., images) frames. OPTIONS
-h, --help Shows a brief help string and exit. --version Show program's version number and exit. --no-color Disable color output. -v, --verbose Show all available tag information. --debug Trace program execution; for debugging. TAG VERSIONS
-1, --v1 Only read/write ID3 v1 tags. By default, v1 tags are only read if there is not a v2 tag. -2, --v2 Only read/write ID3 v2.x tags. --to-v1.1 Convert the file's tag to ID3 v1.1. (Or 1.0 if there is no track number) --to-v2.3 Convert the file's tag to ID3 v2.3. --to-v2.4 Convert the file's tag to ID3 v2.4 TAG DATA
Options for manipulating tag data have the side-effect of removing a frame when the data specified is the empty string. For example, --artist="" (or -a "") would cause the artist frame to be removed. This is especially useful for removing comment frames. -a STRING, --artist=STRING Set artist the to STRING. -A STRING, --album=STRING Set album to STRING. -t STRING, --title=STRING Set track title to STRING. -n NUM, --track=NUM Set track number to NUM. -N NUM, --track-total=NUM Set total number of tracks to NUM. -G STRING, --genre=STRING Sets genre to STRING. (See --list-genres) -Y YEAR, --year=YEAR Set the four digit year. -p STRING, --publisher=STRING Set the publisher/label text. --comment=[LANGUAGE]:DESCRIPTION:COMMENT Add (or remove when COMMENT is "") a comment. Note that the argument value MUST always contain exactly two ':' characters to delimit the fields even when the default language is being used. The DESCRIPTION string is the comment title. The optional LAN- GUAGE string MUST be a three-character ISO 639 language code. The default is "eng" for English. A tag may not have more than one comment frame with the same DESCRIPTION and LANGUAGE values. --remove-comments Remove all comment frames from the tag. --lyrics=[LANGUAGE]:DESCRIPTION:LYRICS Add (or remove when LYRICS is "") a comment. Note that the argument value MUST always contain exactly two ':' characters to delimit the fields even when the default language is being used. The DESCRIPTION string is the lyrics title. The optional LANGUAGE string MUST be a three-character ISO 639 language code. The default is "eng" for English. A tag may not have more than one lyrics frame with the same DESCRIPTION and LANGUAGE values. --remove-lyrics Remove all lyrics frames from the tag. --add-image=IMG_PATH:TYPE[:DESCRIPTION] Add an image to the tag (APIC frame). The IMG_PATH is the image file to add to the tag. If the path value is empty the image frame with a value of TYPE is removed from the tag. The TYPE is one of the types listed when 'eyeD3 --list-image-types' is run. The DESCRIPTION is optional and will default to "". A tag may not have more than one image frame with the same TYPE values. --remove-images Remove all image (APIC) frames from the tag. --add-object=OBJ_PATH[:DESCRIPTION[:MIME-TYPE[:FILENAME]]] Add an encapsulated object to the tag (GEOB frame). The description and filename are optional, but when used, the ':' delimiters must be present. If the OBJ_PATH value is empty the GEOB frame with DESCRIPTION is removed. A tag may not have more than one object (GEOB) frame with the same DESCRIPTION values. -i DIR, --write-images=DIR Causes all attached images (APIC frames) to be written to the specified directory. They are named by their "image type". For exam- ple, if the image is a png and the type is OTHER, a file named OTHER.png is written to the desired directory. If the file name already exist, a unique numeric value is appended to the type string. -o DIR, --write-objects=DIR Causes all attached objects (GEOB frames) to be written to the specified directory. The files are written with the name "<file- name>.<mime-subtype>" in the specified directory. --set-text-frame=FID:TEXT Set the value of a specific (i.e., FID) text frame. To remove the frame, specify an empty value. e.g., --set-text-frame="TDRC:" --set-user-text-frame=DESC:TEXT Set the value of a TXXX text frame with a unique description. To remove the frame, specify an empty value. e.g., --set-user-text- frame="Description:" --set-url-frame=FID:URL Set the value of a specific (i.e., FID) URL frame. To remove the frame, specify an empty URL. e.g., --set-url-frame="WCOM:" --set-user-url-frame=DESC:URL Set the value of a WXXX frame with unique description string. To remove the frame, specify an empty URL. e.g., --set-user-url- frame="Description:" --play-count=[+]N Set the play count (PCNT). If the argument value begins with '+' the value is incremented by N, otherwise it is set to exactly N. --bpm=N Set the beats per minute value. The value MUST be greater than 0. --unique-file-id=OWNER_ID:ID Add a UFID frame. If the ID arg is empty the UFID frame with OWNER_ID is removed. An OWNER_ID MUST be specified. --set-encoding=latin1|utf8|utf16-LE|utf16-BE Set the encoding that is used for _all_ text frames in the tag. The encoding is applied only when the tag is updated, therefore a frame must be set or --force-update is present. Note that, unfortunately, utf8 is not supported by ID3 v2.3 tags. --remove-v1 Remove ID3 v1.x tag. --remove-v2 Remove ID3 v2.x tag. --remove-all Remove all tags. MISC. OPTIONS --rename=PATTERN Rename the file based on PATTERN which may contain the following substitution variables: %A (artist), %a (album), %t (title), %n (track number), and %N (the total track count). The PATTERN string MUST not contain the file name extenstion. --fs-encoding=ENCODING Use the specified character encoding for filenames when renaming files. The default value is iso-8859-1. -l, --list-genres Display the table of "valid" ID3 genres and exit. --list-image-types List all possible image types for APIC frames. --strict Fail for tags that violate the ID3 specification. --jep-118 Output the tag per the format described in JEP-0118. See http://www.xmpp.org/extensions/xep-0118.html --nfo Output NFO information for each album directory. --lametag Prints the LAME Tag. --force-update Update the tag regardless of whether any frames were set on the command line. --no-zero-padding Don't pad track or disc numbers with 0's. --no-tagging-time-frame When saving tags do not add a TDTG (tagging time) frame. -F DELIM Specify a new delimiter for option values that contain multiple fields (default delimiter is ':') SEE ALSO
http://eyed3.nicfit.net/ AUTHOR
eyeD3 was written by Travis Shirk <travis@pobox.com>. This manpage was written by Alexander Wirt <formorer@debian.org> for the Debian Dis- tribution and Travis Shirk. eyeD3 0.6.18 Jun. 29, 2012 EYED3(1)
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