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Top Forums Shell Programming and Scripting Add filenames to top of each files in a directory Post 302997712 by Corona688 on Thursday 18th of May 2017 11:55:32 AM
Old 05-18-2017
for FILE in `ls *` is a dangerous use of backticks and pointless besides, don't do that. * does not need ls or any other external command's help to work.

You can do this with a subshell, which first prints the file name, then reads out the file contents, with the entire subshell's output dumped into "$FILE".txt

Code:
for FILE in *
do
        ( echo "$FILE" ; cat "$FILE" ) < "$FILE" > "$FILE".txt
done

This User Gave Thanks to Corona688 For This Post:
 

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LTS2LPS(1)							   User Commands							LTS2LPS(1)

NAME
lts2lps - translates an LTS into an LPS SYNOPSIS
lts2lps [OPTION]... [INFILE [OUTFILE]] DESCRIPTION
Translates an LTS in INFILE and writes the resulting LPS to OUTFILE. If OUTFILE is not present, standard output is used. If INFILE is not present, standard input is used. OPTIONS
OPTION can be any of the following: -DFILE, --data=FILE use FILE as the data and action specification. FILE must be a .mcrl2 file which does not contain an init clause. -lFILE, --lps=FILE use FILE for the data and action specification. FILE must be a .lps file. -mFILE, --mcrl2=FILE use FILE as the data and action specification for the LTS. FILE must be a .mcrl2 file. --timings[=FILE] append timing measurements to FILE. Measurements are written to standard error if no FILE is provided Standard options: -q, --quiet do not display warning messages -v, --verbose display short intermediate messages -d, --debug display detailed intermediate messages --log-level=LEVEL display intermediate messages up to and including level -h, --help display help information --version display version information AUTHOR
Written by Frank Stappers. REPORTING BUGS
Report bugs at <http://www.mcrl2.org/issuetracker>. COPYRIGHT
Copyright (C) 2012 Technische Universiteit Eindhoven. This is free software. You may redistribute copies of it under the terms of the Boost Software License <http://www.boost.org/LICENSE_1_0.txt>. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
See also the manual at <http://www.mcrl2.org/mcrl2/wiki/index.php/User_manual/lts2lps>. lts2lps mCRL2 toolset 201202.0 (Release) April 2012 LTS2LPS(1)
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