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Top Forums UNIX for Beginners Questions & Answers Appending time stamp for multiple file Post 302998189 by Don Cragun on Friday 26th of May 2017 09:34:00 PM
Old 05-26-2017
Without knowing what operating system and shell you're using we might be able to make lots of suggestions that can't possibly work in your environment.

Setting a the way you are gives it a value that is the literal string date +%s; not to a value that is the output produced by running that date command. Using the ls command substitution is unnecessary, slows down your script, makes it vulnerable to failure in directories with lots of files or with lots of long filenames, and will fail when given filenames containing IFS characters. Consider replacing your script with:
Code:
a=$(date +%s)
for i in *_001*
do	mv "$i" "$i_$a"
done

to get rid of those problems.
This User Gave Thanks to Don Cragun For This Post:
 

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fmtutil.cnf(5)							       teTeX							    fmtutil.cnf(5)

NAME
fmtutil.cnf - configuration file for fmtutil DESCRIPTION
The fmtutil.cnf file contains the configuration information for fmtutil(8). Each line contains the name of the format (e.g., ``tex'', ``latex'', ``omega''), the name of the engine that is used by that format (e.g., ``tex'', ``etex'', ``omega''), the pattern file (e.g., language.dat, language.def), and any arguments (name of an .ini file). Fields are separated by whitespace and complete lines can be commented out with ``#''. The ``pattern file'' field cannot be used to define a file that is used while building the format. It tells fmtutil which files (separated by commas) the format creation procedure reads and it has an effect to the options --showhyphen and --byhyphen. If the format has no way to customize hyphenation, a ``-'' can be used to indicate this. NOTES
The tex(1) and amstex(1) formats always load hyphen.tex. No customization by a pattern file is available for these formats. Therefore, the pattern-file field for the tex and amstex is usually indicated to be empty (``-''). You can, however, build customized formats on top of plain tex(1) or amstex(1) by using bplain.tex instead of plain.tex (b for the Babel system). See, for example, the bplain.ini file for the bplain format). etex(1) loads language.def, not language.dat. Symbolic links to the correct engines (e.g., bplain -> tex) are generated by the texlinks(8) script. Remember to run texlinks(8) if you run fmtutil(8) yourself, rather than using the FORMATS option in texconfig(8). FILES
fmtutil.cnf default configuration file language.dat hyphenation pattern file language.def hyphenation pattern file language.dat.lua hyphenation pattern file SEE ALSO
amstex(1), etex(1), fmtutil(8), tex(1), texconfig(8), texlinks(8). Web page: <http://tug.org/teTeX/> BUGS
None known, but report any bugs found to <tetex@dbs.uni-hannover.de> (mailing list). AUTHOR
fmtutil.cnf was written by Thomas Esser <te@dbs.uni-hannover.de>, and is Copyright 1998, 1999 but released into the public domain. This manual page was written by C.M. Connelly <c@eskimo.com>, for the Debian GNU/Linux system. It may be used by other distributions with- out contacting the author. Any mistakes or omissions in the manual page are my fault; inquiries about or corrections to this manual page should be directed to me (and not to the primary author). teTeX October 2000 fmtutil.cnf(5)
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