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notes:unix:fall2024:projects:tpb1

TPB1

In this puzzle box we'll be using tools such as stegsnow, to find hidden data in files, and other useful tools such as cut, paste, and tac to assemble our ASCII image results with the correct orientation.

The first thing we want to do as always is investigate the files we received from /var/public/fall2024/unix/tpb1. We can do so using the file command. We should investigate all of the files we received if we want to be thorough. We should have two files, a README and a text file of some sort. An example might be iliad.txt

TOOLBOX

  • file(1) - determine file type
  • head(1) - output the first part of files
  • tail(1) - similar to head except it outputs the lines from the bottom up (-n can be used to specify the number of lines
  • rev(1) - reverse lines characterwise
  • stegsnow(1) - hides or reveals messages within trailing spaces of ASCII text that may or may not be encrypted
  • tac(1) - reverses the order of lines in a file, delimited by newline characters by default (this can be changed with the -s option)
  • cut(1) - used to extract sections of lines using delimiters that can be defined by the user with the -d option. The -f option will also be pertinent
  • paste(1) - used to merge lines from multiple files side by side using a user defined delimiter
  • cat(1) - cat can be used to merge two files vertically (cat file1 file2 > file3)
  • * uniq(1) - report or omit reported lines
notes/unix/fall2024/projects/tpb1.txt · Last modified: 2024/10/03 03:44 by idavis1