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Terminal commands

Julia Evans: A list of new(ish) command line tools

Clipboard

  • pbcopy & pbpaste

https://osxdaily.com/2007/03/05/manipulating-the-clipboard-from-the-command-line/

  • pbcopy < file.txt

  • ps aux | pbcopy

  • pbpaste > pastetest.txt

  • pbpaste | grep rcp

xargs

  • Run a command using the input data as arguments:
  • `arguments_source | xargs command

Secrets

read -s PGPASSWORD
secretly_type_your_password
export PGPASSWORD

direnv

  • Checks for .envrc > .env
  • makes them environment variables

ripgrep (rg)

  • better than grep
  • ripgrepall also searches PDFs and other files - brew install rga - brew install pandoc poppler tesseract ffmpeg ???? Example use cases

Read logs

lnav has syntax highlighting for logs

Hyperfine CLI Benchmarking Performance

Typos

Python list to bash

space_separated_strings=$(python file.py | tr -d '[],')

# We need the eval because ????
eval "for query_content in $query_content_list; do
    echo \$query_content
    psql2 $COMMISSIONS_DB -c \$query_content;
done"

You should just do everything in Python Run the shell psql2 from Python

???? What did Viktor do?

su vs sudo

  • su switches users
  • sudo keeps the current user, runs as if they were sudo
  • su - creates a new environment with the super user's env var and switches to their home directory
  • sudo su -

Open a man file in Preview (as a PDF)

man -t apropos | open -fa Preview

Notify yourself after 10 mins

Doesn't work with do not disturb mode on 😞

# can't do sleep 10m on Mac
reminder() {
    sleep $((60*$1)) && osascript -e 'display notification "$2"'
}
Last update: 2023-04-24