{"id":1082,"date":"2025-07-05T09:59:13","date_gmt":"2025-07-05T09:59:13","guid":{"rendered":"https:\/\/doublelayer.eu\/vilab\/?p=1082"},"modified":"2025-09-14T16:16:40","modified_gmt":"2025-09-14T16:16:40","slug":"showing-difference-in-files","status":"publish","type":"post","link":"https:\/\/doublelayer.eu\/vilab\/2025\/07\/05\/showing-difference-in-files\/","title":{"rendered":"Showing difference in files"},"content":{"rendered":"\n

We are submitting the review “Twenty Years After: Scaling Relations in Oxygen Electrocatalysis and Beyond<\/a>“<\/p>\n\n\n\n

I have made so many changes to the LaTeX code that latexdiff gives 99+ errors. UPDATE: the errors were related to table and equations. To fix them I played with –math-markup=none and –add-to-config PICTURENEV=tabular, but eventually just fixed the Tables and specific errors.<\/p>\n\n\n\n

There are two ways to get diff in overleaf<\/a>, which I use. <\/p>\n\n\n\n

In search for an alternative, have tested DiffPDF and Meld. The result looks useful, yet unsuitable for submitting them to the editor. So, this post should have a label “do not know how” instead of usual “know-how”. Still, fun.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

To make the last printscreen, I did the following.<\/p>\n\n\n\n

Installed packages in Linux\/Ubuntu\/WSL2.<\/p>\n\n\n\n

sudo apt-get -y install meld calibre parallel<\/code><\/pre>\n\n\n\n
Saved the following code in a file named “diffdoc” (with no extensions) inside directory “\/usr\/local\/bin”.<\/p>\n\n\n\n
usage=\"\n*** usage:\n\ndiffepub - compare text in two files. Valid format for input files are:\nMOBI, LIT, PRC, EPUB, ODT, HTML, CBR, CBZ, RTF, TXT, PDF and LRS.\n\ndiffepub -h | FILE1 FILE2\n\n-h print this message\n\nExample:\ndiffepub my_file1.pdf my_file2.pdf\ndiffepub my_file1.epub my_file2.epub\n\nv0.2 (added parallel and 3 files processing)\n\"\n\n#parse command line options\nwhile getopts \"h\" OPTIONS ; do\n  case ${OPTIONS} in\n    h|-help) echo \"${usage}\"; exit;;\n  esac\ndone\nshift $(($OPTIND - 1))\n\n#check if first 2 command line arguments are files\nif [ -z \"$1\" ] || [ -z \"$2\" ] || [ ! -f \"$1\" ] || [ ! -f \"$2\" ]\nthen\n  echo \"ERROR: input files do not exist.\"\n  echo\n  echo \"$usage\"\n  exit\nfi\n\n\n\n#create temporary files (first & last 10 characters of\n# input files w\/o extension)\nfile1=`basename \"$1\" | sed -r -e '\ns\/\\..*$\/\/                     #strip file extension\ns\/(^.{1,10}).*(.{10})\/\\1__\\2\/ #take first-last 10 chars\ns\/$\/_XXX.txt\/                 #add tmp file extension\n'`\nTMPFILE1=$(mktemp --tmpdir \"$file1\")\n\nfile2=`basename \"$2\" | sed -r -e '\ns\/\\..*$\/\/                     #strip file extension\ns\/(^.{1,10}).*(.{10})\/\\1__\\2\/ #take first-last 10 chars\ns\/$\/_XXX.txt\/                 #add tmp file extension\n'`\nTMPFILE2=$(mktemp --tmpdir \"$file2\")\n\nif [ \"$#\" -gt 2 ] \nthen\n  file3=`basename \"$3\" | sed -r -e '\n  s\/\\..*$\/\/                     #strip file extension\n  s\/(^.{1,10}).*(.{10})\/\\1__\\2\/ #take first-last 10 chars\n  s\/$\/_XXX.txt\/                 #add tmp file extension\n  '`\n  TMPFILE3=$(mktemp --tmpdir \"$file3\")\nfi\n\n#convert to txt and compare using meld\ndoit(){ #to solve __space__ between filenames and parallel\n  ebook-convert $1\n}\nexport -f doit\nif [ \"$#\" -gt 2 ] \nthen\n  (parallel doit ::: \"$1 $TMPFILE1\" \\\n                     \"$2 $TMPFILE2\" \\\n                     \"$3 $TMPFILE3\" ) &&\n  (meld \"$TMPFILE1\" \"$TMPFILE2\" \"$TMPFILE3\")\nelse\n  (parallel doit ::: \"$1 $TMPFILE1\" \\\n                     \"$2 $TMPFILE2\" ) &&\n  (meld \"$TMPFILE1\" \"$TMPFILE2\")\nfi<\/code><\/pre>\n\n\n\n
Made sure the owner is me and it has execution permissions:<\/p>\n\n\n\n
sudo chown $USER:$USER \/usr\/local\/bin\/diffepub\nsudo chmod 700 \/usr\/local\/bin\/diffepub<\/code><\/pre>\n\n\n\n
Run it on two pdf files:<\/p>\n\n\n\n
diffdoc FILE1.pdf FILE2.pdf<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
We are submitting the review “Twenty Years After: Scaling Relations in Oxygen Electrocatalysis and Beyond“ I have made so many changes to the LaTeX code that latexdiff gives 99+ errors. UPDATE: the errors were related to table and equations. To fix them I played with –math-markup=none and –add-to-config PICTURENEV=tabular, but eventually just fixed the Tables… Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-1082","post","type-post","status-publish","format-standard","hentry","category-know-how"],"_links":{"self":[{"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/posts\/1082","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/comments?post=1082"}],"version-history":[{"count":4,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/posts\/1082\/revisions"}],"predecessor-version":[{"id":1134,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/posts\/1082\/revisions\/1134"}],"wp:attachment":[{"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/media?parent=1082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/categories?post=1082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/doublelayer.eu\/vilab\/wp-json\/wp\/v2\/tags?post=1082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}