#1 2021-12-03 13:11:06

brontosaurusrex

Middle Office

Registered: 2015-09-29

Posts: 2,746

github copilot for shell scripts, examples

Copilot suggestions based on func name or #comments, I'am leavin this as generated, but
WARNING: If you plan to use any of this run it through shellcheck and add missing quotes and more.

#!/bin/bash

calc () {
    echo "scale=2; $1" | bc
}     

datediff () {
    d1=$(date -d "$1" +%s)
    d2=$(date -d "$2" +%s)
    echo $(( (d1 - d2) / 86400 ))
} # I like this one

svg_to_pdf () {
    in_file=$1
    out_file=$2
    inkscape --export-pdf=$out_file $in_file
}

tmp () {
    mkdir -p tmp
    cd tmp
}

runUntil () {
    until [ $1 -eq $2 ]; do
        $3
        let "i++"
    done
}

magick () {
    convert -density 300 -quality 100 -resize $1 $2 $3
}

1250toUtf8 ()   {
    iconv -f CP1250 -t UTF-8 $1 > $2
}

setWallpaper () {
    feh --bg-scale $1
}

reloadXResources () {
    xrdb -merge ~/.Xresources
}

crushPng () {
    pngcrush -rem alla -reduce -brute -l 9 -q $1 $2
}

flac2m4a () {
    ffmpeg -i $1 -acodec libfaac -ab 128k -ac 2 -ar 44100 -map_metadata 0 -id3v2_version 3 $2
}

wav2flac () {
    ffmpeg -i $1 -acodec flac -ab 128k -ac 2 -ar 44100 -map_metadata 0 -id3v2_version 3 $2
}

# find all png and jpg files in the current directory
# and echo them
find_images () {
    find . -type f -iname "*.png" -o -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.gif"
}

mp32m4a ()  {
    ffmpeg -i $1 -acodec libfaac -ab 128k -ac 2 -ar 44100 -map_metadata 0 -id3v2_version 3 $2
}

svg2ico () {
    inkscape --export-png=$1.png $1
    convert $1.png -resize 16x16 $1.ico
    rm $1.png
}

# convert time in format hh.mm.ss.mmm 25 fps timecode hh.mm.ss.ff is wanted 
convert ()  {
    local hh=$(echo $1 | cut -d '.' -f 1)
    local mm=$(echo $1 | cut -d '.' -f 2)
    local ss=$(echo $1 | cut -d '.' -f 3)
    local ff=$(echo $1 | cut -d '.' -f 4)
    local hh_=$(echo $2 | cut -d '.' -f 1)
    local mm_=$(echo $2 | cut -d '.' -f 2)
    local ss_=$(echo $2 | cut -d '.' -f 3)
    local ff_=$(echo $2 | cut -d '.' -f 4)
    local hh_=$(($hh_ * 3600))
    local mm_=$(($mm_ * 60))
    local ss_=$(($ss_))
    local ff_=$(($ff_))
    local hh=$(($hh * 3600))
    local mm=$(($mm * 60))
    local ss=$(($ss))
    local ff=$(($ff))
    local hh=$(($hh + $hh_))
    local mm=$(($mm + $mm_))
    local ss=$(($ss + $ss_))
    local ff=$(($ff + $ff_))
    if [ $ff -ge 100 ]; then
        ff=$(($ff - 100))
        ss=$(($ss + 1))
    fi
    if [ $ss -ge 60 ]; then
        ss=$(($ss - 60))
        mm=$(($mm + 1))
    fi
    if [ $mm -ge 60 ]; then
        mm=$(($mm - 60))
        hh=$(($hh + 1))
    fi
    echo "$hh.$mm.$ss.$ff"
} # havent tested this yet, but wow

# tell chuck norris jokes
chuck () {
    local joke=$(curl -s http://api.icndb.com/jokes/random)
    local joke=$(echo $joke | jq -r '.value.joke')
    echo $joke
}

weather () {
    local weather=$(curl -s http://wttr.in/$1)
    echo $weather
}

checkIfAptInstalled () {
    local package=$1
    local installed=$(dpkg-query -W -f='${Status}' $package 2>/dev/null | grep -c "ok installed")
    if [ $installed -eq 0 ]; then
        echo "false"
    else
        echo "true"
    fi
}

# check if command is available in system
checkIfCommandAvailable () {
    local command=$1
    local available=$(which $command 2>/dev/null)
    if [ -z "$available" ]; then
        echo "false"
    else
        echo "true"
    fi
}

# echo joke to stdout       
echo "What do you call a dog that does magic tricks?"
echo "A labracadabrador"

# echo cat joke to stdout   
cat <<EOF
What do you call a dog that does magic tricks?  A labracadabrador
EOF

Last edited by brontosaurusrex (2021-12-08 12:51:18)

---

My website full of interesting stuff.

johnraff

nullglob

From: Nagoya, Japan

Registered: 2015-09-09

Posts: 12,652

Website

Re: github copilot for shell scripts, examples

I recommend running "shellcheck" on any shellscript after writing it, some of its output is opiniated but it also will catch serious oversights.

+10
We all make mistakes & typos sometimes and shellcheck will catch many of them.
You can ignore its advice sometimes if you're sure you understand why it's OK to do so.

---

...elevator in the Brain Hotel, broken down but just as well...
( a boring Japan blog (currently paused), now on Bluesky, there's also some GitStuff )

Introduction to the Bunsenlabs Boron Desktop

brontosaurusrex

Middle Office

Registered: 2015-09-29

Posts: 2,746

Re: github copilot for shell scripts, examples

I've added a warning.

---

My website full of interesting stuff.