Various of my most frequently used scripts and one-liners for my most often required tasks. All run on my Xubuntu 20.04 and 21.04 machines, save, obviously, the Mac OS X bootcodes.<\/p>\n
To rename a file in a git repository To delete a file from a git repository: To delete a folder (within a folder) from a git repository: After git add * & git commit, to clear the commit without clearing the changes: To get the number of pages of a pdf: To remove a continuous set of numbered lines (in this example, lines 10 to 15) reiterated over a folder of text files: Grep print following lines: -A n Choose boot device (e.g. USB drive): Option (‘alt’ \u2325) alone.<\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" Various of my most frequently used scripts and one-liners for my most often required tasks. All run on my Xubuntu 20.04 and 21.04 machines, save, obviously, the Mac OS X bootcodes. Git Wrangling To rename a file in a git … Continue reading
\ngit mv oldfilename.xyz newfilename.xyz<\/code>
\nthen git commit & push as per usual.<\/p>\n
\ngit rm filename.xyz<\/code>
\nthen git commit & push as per usual.<\/p>\n
\ngit rm -r Folder-to-keep\/Folder-to-remove\/<\/code>
\nthen git commit & push as per usual.<\/p>\n
\ngit reset --soft HEAD~1<\/code><\/p>\nPDF Wrangling<\/h2>\n
\nqpdf --show-npages OriginalFile.pdf<\/code>
\nTo ‘burst’ a pdf into single page files (files will be named NewFile-1.pdf, NewFile-2.pdf, etc):
\nqpdf --split-pages=1 OriginalFile.pdf NewFile.pdf<\/code>
\nTo split a pdf into chunks of 300 pages (files will be named NewFile-001-300.pdf, etc.):
\nqpdf --split-pages=300 OriginalFile.pdf NewFile.pdf<\/code>
\nTo extract a set of consecutive pages from a pdf, keeping metadata:
\nqpdf input.pdf --pages . 51-100 -- output.pdf<\/code>
\nTo extract a set of consecutive pages from a pdf, removing metadata:
\nqpdf --empty --pages infile.pdf 51-100 -- outfile.pdf<\/code><\/p>\nText File Wrangling<\/h2>\n
\nsed -i '10,15d' folder\/*.txt<\/code>
\nTo remove all blank lines:
\nsed -i '\/^$\/d' textfile.txt<\/code><\/p>\nText Searching<\/h2>\n
\nGrep print preceeding lines: -B n
\nGrep print lines before and after: -C n
\nGrep suppress filename: -h
\nGrep case insensitive: -i
\n(Gnu) Grep returning only the matching text: -o
\n(Gnu) Grep search to first occurrence of final character: -oP ‘A.+?B’
\n– Useful for extracting tags from html and xml files: grep -oP ‘<.+?>’ file.html<\/p>\nMac OS X Boot codes<\/h2>\n