Digital Tools and Utilities

• Text editor of choice: Neovim, Helix, Neovim
• Visual Studio Code for any more advanced search and replace regex-fu.
• some favorite command line tools:
  • Taskell - Command-line Kanban board/task manager
  • zoxide - A smarter cd command
  • atuin - shell history

Digital Tools I’m Trying Out ¶

• Tig - Text-mode interface for Git
• csvkit a suite of command-line tools for converting to and working with CSV
• AltTab - Windows alt-tab on macOS
• dua-cli: view disk space usage and delete unwanted data

Awk ¶

• pattern { actions; }
  • each line is matched against every pattern, the pattern is optional though
• patterns: regex, boolean expressions, special patterns
  • regex has no capture groups
  • &&, ||, !, ==, !=, and ~ and !~ for string comparison
  • BEGIN, END,fields: $0 (the whole line), $1, $2 . . .
    • $NF is the last column (NF is a literal number) NR the number of records seen so far

awk '/^3/ { ACTION }' file.tsv
awk '$1 ~ "Wes" { ACTION }' file.tsv
awk 'BEGIN { a = 0; }; $1 == $2 { a = a + 1; }; END { print a; };' file.tsv

{ print; }
{ printf("%s %s\n", $1, $2); }
{ exit; }      # ends the program
{ next; }      # skips to the next line of input
{ a=$1; b=$0 } # variable assignment
{ c[$1] = $2 } # variable assignment (array)

{ if (BOOLEAN) { ACTION }
  else if (BOOLEAN) { ACTION }
  else { ACTION }
}
{ for (i=1; i<x; i++) { ACTION } }
{ for (item in c) { ACTION } }

• https://c2.com/doc/expense/ - awk expense calculator example

Jujutsu ¶

Jujutsu is a version control system—works on top of git.

• jj git init to create new repository
• jj new to start on a new change
• jj describe to add a comment to the change
• jj st to look at the status
• jj new to start another change
• jj log to view the repository’s contents
• jj split -i split the change down

Squash Workflow ¶

• jj new an empty change
• jj desc to describe what this change will be
• jj new another new empty change on top of that
• we now make our changes
• jj squash to move the changes from the @ to the empty parent we made when we started the change
  • jj squash -i for interactive

Edit Workflow ¶

• jj new an empty change
• jj desc to describe what this change will be
• we now make our changes
• repeat from start with jj new if we’re happy with the change
• or perhaps we want another change before the current one
• jj new -B @ -m "the change before the current one"
• make the change here which will be before the @
• jj next --edit

See also: Tools