shell.md

Useful Shell Commands

File sizes

When using bash, the following creates a list of files with their file sizes, and sort in ascending order of size.

du --human-readable -d1 | sort --human-numeric-sort

(Source: somewhere on stackoverflow. Will update when I find it again)

LaTeX

Based on this script by Danica J. Sutherland which removes the temporary files created in the process of (pdf)LaTeX compilation, I made a similar one with minor modifications. I only added a few more extensions to remove and used the verbose option -v with the rm command to output which files are being delted to the standard output.

exts="aux bbl blg brf idx ilg ind lof log lol lot nav out snm tdo toc synctex.gz fdb_latexmk fls"

for x in "${@:-.}"; do
    arg=$(echo ${x:-.} | perl -pe 's/\.(tex|pdf)$//')

    if [[ -d "$arg" ]]; then
        for ext in $exts; do
             rm -vf "$arg"/*.$ext
        done
    else
        for ext in $exts; do
             rm -vf "$arg".$ext
        done
    fi
done

Prompt coloring for macOS ZSH

The snippet below modifies the zsh prompt by setting a green color for the name (hardcoded to my name here), magenta for path (only shows current folder name), followed by git branch name (if any) color coded by status. This is basically just a copy of this template by Chris Nolet but with slight modifications for my own purposees. To use, add the following lines to .zshrc:

autoload -Uz compinit && compinit
autoload -Uz add-zsh-hook
autoload -Uz vcs_info

add-zsh-hook precmd vcs_info

zstyle ':vcs_info:*' enable git
zstyle ':vcs_info:*' formats " %F{cyan}%c%u(%b)%f"
zstyle ':vcs_info:*' actionformats " %F{cyan}%c%u(%b)%f %a"
zstyle ':vcs_info:*' stagedstr "%F{green}"
zstyle ':vcs_info:*' unstagedstr "%F{red}"
zstyle ':vcs_info:*' check-for-changes true

zstyle ':vcs_info:git*+set-message:*' hooks git-untracked

+vi-git-untracked() {
  if git --no-optional-locks status --porcelain 2> /dev/null | grep -q "^??"; then
    hook_com[staged]+="%F{red}"
  fi
}

setopt PROMPT_SUBST
export PROMPT='%F{green}ajinkya%f:%F{magenta}%1~%f$vcs_info_msg_0_ %# '