├── README.md
├── open-bookmark
├── lowbattery-notify
├── webscrape
    ├── codeforces-answer
    ├── 4chan-down
    └── np-down
├── emoji-picker
├── fufetch
└── tools
    └── shell_alternatives


/README.md:
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1 | # My script collection
2 | 
3 | Work in progress...
4 | 


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/open-bookmark:
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 1 | #!/bin/sh
 2 | 
 3 | # open bookmarks in browser using dmenu
 4 | # dependencies "dmenu" any browser
 5 | 
 6 | # Browser command
 7 | Browser="qutebrowser"
 8 | 
 9 | TempFile=$(mktemp)
10 | 
11 | dmenu -p "Open: " -l 15 > "$TempFile" << EOF
12 | [duckduckgo]start.duckduckgo.com
13 | [reddit]reddit.com
14 | [suckless]suckless.org
15 | [monkeytype]monkeytype.com
16 | [keybr]keybr.com
17 | [github]github.com
18 | EOF
19 | 
20 | read -r Url < "$TempFile"
21 | [ -n "$Url" ] && $Browser "${Url#*]}"
22 | 
23 | rm -f "$TempFile"
24 | 


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/lowbattery-notify:
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 1 | #!/bin/sh
 2 | 
 3 | # Notifies user when battery drops to <=15%
 4 | # dependencies "notify-send"
 5 | 
 6 | # Might need to be modified depending on the device (BAT0, BAT1, BAT2)
 7 | BatteryDir="/sys/class/power_supply/BAT1"
 8 | # Battery percentage to notify at
 9 | MinPercent=15
10 | # Checks every 10 minutes
11 | Refresh=600
12 | 
13 | while :; do
14 | 	read -r BatStatus < "$BatteryDir/status"
15 | 	read -r BatPercent < "$BatteryDir/capacity"
16 | 	if [ "$BatStatus" = "Discharging" ] && [ $BatPercent -le $MinPercent ]; then
17 | 		notify-send -u critical "Low Battery: $BatPercent%"
18 | 	fi
19 | 	sleep $Refresh
20 | done 
21 | 


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/webscrape/codeforces-answer:
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 1 | #!/bin/sh
 2 | 
 3 | # usage : codeforces-answer 439 A
 4 | # shows the best solutions one by one
 5 | 
 6 | prob_num=$1
 7 | prob_letter=$2
 8 | 
 9 | 
10 | get_top_answer_id () {
11 | 	url="https://codeforces.com/problemset/status/$prob_num/problem/$prob_letter?order=BY_CONSUMED_TIME_ASC"
12 | 	curl -s "$url" |
13 | 	grep -o "submissionId=\"[^\"]*\"" |
14 | 	{
15 | 		while IFS=\" read _ id ; do
16 | 			printf "%d\n" "$id"
17 | 		done
18 | 	}
19 | }
20 | 
21 | get_code_id () {
22 | 	id=$1
23 | 	url="https://codeforces.com/problemset/submission/$prob_num/$id"
24 | 	
25 | 	curl -s "$url" | sed -n -E -e '
26 | 	/ *<pre id="program-source-text/,\_</pre>_{
27 | 		 s_ *</?pre[^>]*>__g
28 | 		 p
29 | 	 }
30 | 	' | recode html..ascii
31 | }
32 | 
33 | 
34 | 
35 | for id in $(get_top_answer_id); do
36 | 	get_code_id "$id" | less
37 | 	printf "%s" "Show next answer?[y/N] "
38 | 	read ans
39 | 	case $ans in
40 | 		[yY])
41 | 
42 | 			;;
43 | 		'')
44 | 			break
45 | 			;;
46 | 	esac
47 | done 
48 | 


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/emoji-picker:
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 1 | #!/bin/sh
 2 | 
 3 | # type emojies using dmenu
 4 | # dependencies: "dmenu" "xdotool"
 5 | 
 6 | TempFile=$(mktemp)
 7 | trap "Sh_exit" EXIT
 8 | Sh_exit () {
 9 | 	rm -f "$TempFile"
10 | }
11 | 
12 | dmenu -l 15 -p "Emoji:" > "$TempFile" <<EOF
13 | [😆] very happy
14 | [😂] laugh
15 | [🤣] laugh more
16 | [😅] embarrassment laugh
17 | [🙂] regular smile
18 | [☺] bigger smile
19 | [😊] satisfaction smile
20 | [😉] wink
21 | [🥰] loved
22 | [😍] love eyes
23 | [🤩] awesome
24 | [😘] kiss
25 | [😋] yum tasty
26 | [🤤] drooling tasty
27 | [😛] tongue out funny
28 | [😝] tongue out epic funny
29 | [🤑] rich money
30 | [🤗] hug
31 | [🤫] shhh silent
32 | [🤔] thinking
33 | [😑] bum face
34 | [😬] yikes messed it up
35 | [😪] sleepy
36 | [🤒] fever sick
37 | [🤯] head blown amazed
38 | [🥶] freeze"
39 | EOF
40 | 
41 | read -r Emoji < "$TempFile"
42 | 
43 | [ -z "$Emoji" ] && exit
44 | 
45 | Emoji=${Emoji#[}
46 | Emoji=${Emoji%%]*}
47 | 
48 | # type emoji directly
49 | xdotool getactivewindow type "$Emoji"
50 | 


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/fufetch:
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 1 | #!/bin/sh
 2 | ## fufetch
 3 | 
 4 | c_yellow="\033[1;33m"
 5 | c_blue="\033[1;34m"
 6 | c_magenta="\033[1;35m"
 7 | c_reset="\033[0m"
 8 | 
 9 | space="          "
10 | get_pkg_count () {
11 | 	# change this to your distro's package count
12 | 	printf "${space}pkgs    $(pacman -Q | wc -l)\n"
13 | }
14 | 
15 | get_mem () {
16 | 	free --mega | sed -n -E '2s/^[^0-9]*([0-9]+) *([0-9]+).*/'"${space}"'mem     \2\/\1m/p'
17 | }
18 | 
19 | get_info () {
20 | 	read -r _ _ ker _ < /proc/version
21 | 	IFS=. read -r uptime _ < /proc/uptime
22 | 	user=$USER
23 | 	read -r hostname < /etc/hostname
24 | 	read -r host < /sys/devices/virtual/dmi/id/product_name
25 | 	. /etc/os-release
26 | 	os=$PRETTY_NAME
27 | 
28 | 	case $(($uptime % 4)) in
29 | 		0) v="" ;;
30 | 		1) v=" " ;;
31 | 		2) v="  " ;;
32 | 		3) v="   " ;;
33 | 	esac
34 | 
35 | 	printf -- "${v}(00)\"\n"
36 | 	printf -- " ,_|_     ${c_blue}os      ${c_reset}$os\n"
37 | 	printf -- "   | '    ${c_blue}host    ${c_reset}$host\n"
38 | 	printf -- "  .--.    ${c_blue}ker     ${c_reset}$ker\n"
39 | 	printf -- " /   |    ${c_blue}uptime  ${c_reset}$((uptime/3600))h,$((uptime/60 % 60))m\n"
40 | }
41 | 
42 | get_info &
43 | get_mem &
44 | get_pkg_count &
45 | wait
46 | 


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/webscrape/4chan-down:
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 1 | #!/bin/sh
 2 | 
 3 | # Downloads media from a 4chan thread
 4 | # Dependencies "jq" "curl"
 5 | # Usage:
 6 | # 4chan-down <board> <thread number>
 7 | # Example: 
 8 | # 4chan-down w 2175954
 9 | 
10 | Prog="4chan-down"
11 | 
12 | TempFile=$(mktemp --tmpdir "${Prog}.tmp.XXXXXXXX")
13 | JsonFile=$(mktemp --tmpdir "${Prog}.json.XXXXXXXX")
14 | 
15 | Err () {
16 | 	printf "$1\n"
17 | 	exit ${2:-1}
18 | }
19 | 
20 | [ "$1" = "--help" ] || [ "$1" = "-h" ] && Err "USAGE: $Prog <board> <thread number>" 0
21 | [ -z "$2" ] && Err "USAGE: $Prog <board> <thread number>"
22 | 
23 | Board=${1}
24 | Thread=${2}
25 | 
26 | # Fetching Data
27 | curl -s "https://a.4cdn.org/$Board/thread/${Thread}.json" > "$JsonFile"
28 | 
29 | # Checking data is non empty
30 | read _Word < "$JsonFile" || [ -n "$_Word" ] ||
31 | 	Err "Incorrect thread/board. No media found.\nUSAGE: $Prog <board> <thread number>" 
32 | 
33 | mkdir -p "${Board}_${Thread}"
34 | cd "${Board}_${Thread}"
35 | 
36 | # start flags
37 | printf "parallel\n" > "$TempFile"
38 | PreUrl="https://i.4cdn.org/$Board/"
39 | 
40 | # json to curl config file
41 | jq -r '.posts|.[]|select(.tim !=null)|
42 | 	"url = \"'"$PreUrl"'\(.tim)\(.ext)\"\nremote-name\n"
43 | 	' <"$JsonFile" >> "$TempFile"
44 | 
45 | curl -K "$TempFile"
46 | 
47 | rm -f "$TempFile" "$JsonFile"
48 | 


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/webscrape/np-down:
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 1 | #!/bin/sh
 2 | 
 3 | # download newspapers from `https://dailyepaper.in/home/`
 4 | # https://github.com/pystardust/scripts
 5 | # email: notpiestardust@gmail.com
 6 | 
 7 | # USAGE: np-down
 8 | # after date selection, download will start
 9 | # to change newspaper, select the newspaper in the below site
10 | # https://dailyepaper.in/home/
11 | # choose newspapers and set its url below
12 | 
13 | newspaper_url="https://dailyepaper.in/the-hindu-pdf-epaper-download-2021/" #The Hindu newspaper
14 | # newspaper_url="https://dailyepaper.in/times-of-india-epaper-pdf-download-2020/" #Times Of India
15 | # newspaper_url="https://dailyepaper.in/economic-times-newspaper-today/" #The economic Times
16 | 
17 | 
18 | 
19 | tab_space=$(printf '\t')
20 | gap="                                                                        "
21 | gap=$gap$gap$gap
22 | gap=$gap$gap$gap
23 | 
24 | html=$(curl -s "$newspaper_url")
25 | selection=$(
26 | 	{
27 | 		pattern='<p style="text-align: center;">'
28 | 		while IFS= read line; do
29 | 			case $line in
30 | 				("$pattern"*vk.com*)
31 | 					date=${line%${line#*20[0-9][0-9]}}
32 | 					date=${date##*'>'}
33 | 					link=${line#*vk.com}
34 | 					link=${link%%\"*}
35 | 					printf '%s\t%s\t%s\n' "$date" "$gap" "$link"
36 | 					;;
37 | 			esac
38 | 		done <<-!
39 | 		$html
40 | 		!
41 | 	} | fzf -d "$tab_space" -n 1
42 | )
43 | 
44 | [ -z "$selection" ] && exit 0
45 | 
46 | paper_url="https://vk.com${selection##*$tab_space}"
47 | 
48 | download_url=$(curl -s "$paper_url" | grep -o 'https://[^"]*\.pdf')
49 | curl -O# "$download_url"
50 | 


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/tools/shell_alternatives:
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  1 | #!/bin/sh
  2 | 
  3 | # pure shell alternatives to external commands
  4 | 
  5 | # Literal assignment of new line and tabspace
  6 | NewLine="
  7 | "
  8 | TabSpace="	"
  9 | 
 10 | 
 11 | TempFile=$(mktemp)
 12 | 
 13 | Sh_exit () {
 14 | 	rm -f "$TempFile"
 15 | }
 16 | # remove the tempfile at exit
 17 | trap "Sh_exit" EXIT
 18 | 
 19 | # Stores stdin in a variable named $1
 20 | # similar to mapfile in bash but stores it all
 21 | # in the same variable
 22 | Sh_readvar () {
 23 | 	_VarName=$1
 24 | 	_Var=
 25 | 	# checking if last line is not empty is necessary when
 26 | 	# the last line doesn't have \n
 27 | 	# which leads to read giving a non zero exit status
 28 | 	while IFS= read _Line || [ -n "$_Line" ]; do
 29 | 		_Var=$_Var$NewLine$_Line
 30 | 	done
 31 | 	_Var=${_Var#$NewLine}
 32 | 	eval $_VarName=\$_Var
 33 | 	unset _VarName _Var _Line
 34 | }
 35 | 
 36 | # Translates all characters in $1 to the $2
 37 | # Data is read from stdin
 38 | Sh_tr () {
 39 | 	IFS=$1
 40 | 	_Ofs=$2
 41 | 	Sh_readvar _Text
 42 | 	set -- $_Text
 43 | 	printf "%s" "$1"
 44 | 	shift
 45 | 	[ -n "$1" ] && printf "$_Ofs%s" $*
 46 | 	unset IFS _Ofs _Text
 47 | }
 48 | 
 49 | # Prints file to stdout
 50 | Sh_cat () {
 51 | 	while IFS= read _Line; do
 52 | 		printf "%s\n" "$_Line"
 53 | 	done <"$1"
 54 | 	unset _Line
 55 | }
 56 | 
 57 | # Replicates cut, the field needs to be modified
 58 | Sh_cut () {
 59 | 	_Delimeter=${1:-$TabSpace}
 60 | 	while IFS=$_Delimeter read _F1 _F2 _F3 _F4 _F5 _; do
 61 | 		printf "%s\n" "$_F2"
 62 | 	done
 63 | 	unset _Delimeter _F1 _F2 _F3 _F4 _F5
 64 | }
 65 | 
 66 | Sh_wc_char () {
 67 | 	printf "%d\n" "${#1}"
 68 | }
 69 | 
 70 | Sh_wc_line () {
 71 | 	_LineNumber=0
 72 | 	while IFS= read _ || [ -n "$_" ] ; do
 73 | 		_LineNumber=$((_LineNumber+1))
 74 | 	done
 75 | 	printf "%d\n" "$_LineNumber"
 76 | 	unset _LineNumber
 77 | }
 78 | 
 79 | # Prints lines matching pattern
 80 | # Pattern needs to be in shell patterns ( * ! [ ? )
 81 | # Line pattern, to identify the line
 82 | # Example: *[Ll]inu?*
 83 | Sh_grep () {
 84 | 	while IFS= read _Line || [ -n "$_Line" ]; do
 85 | 		case $_Line in
 86 | 			$1) printf "%s\n" "$_Line" ;;
 87 | 		esac
 88 | 	done
 89 | 	unset _Line
 90 | }
 91 | 
 92 | # Substitutes pattern in $1
 93 | # with string in $2
 94 | # Pattern needs to be in shell patterns
 95 | # Word pattern ( to identify the word only the word ) do not add * in the ends
 96 | # Example: ra??[!j]t
 97 | Sh_gsub () {
 98 | 	_Pattern=$1
 99 | 	_Replace=$2
100 | 	while IFS= read _Line || [ -n "$_Line" ]; do
101 | 		_Hold=
102 | 		while :; do
103 | 			case $_Line in
104 | 				*${_Pattern}*)
105 | 					_Hold="$_Hold${_Line%%${_Pattern}*}${_Replace}"
106 | 					_Line="${_Line#*${_Pattern}}"
107 | 					;;
108 | 				*)
109 | 					printf "%s\n" "$_Hold$_Line"
110 | 					break ;;
111 | 			esac
112 | 		done
113 | 	done
114 | 	unset _Line _Pattern _Replace
115 | }
116 | 
117 | # Substitutes only the first occurrence in every line
118 | Sh_sub () {
119 | 	_Pattern=$1
120 | 	_Replace=$2
121 | 	while IFS= read _Line || [ -n "$_Line" ]; do
122 | 		case $_Line in
123 | 			*${_Pattern}*)
124 | 				_Line="${_Line%%${_Pattern}*}${_Replace}${_Line#*${_Pattern}}";;
125 | 		esac
126 | 		printf "%s\n" "$_Line"
127 | 	done
128 | 	unset _Line _Pattern _Replace
129 | }
130 | 
131 | 
132 | # Examples
133 | 
134 | #Reading contents into variable
135 | Sh_readvar Var1 <<EOF
136 | Cat bot dat
137 | dash hat
138 | some more text
139 | EOF
140 | 
141 | Sh_cut <<EOF
142 | cut	1
143 | cut	2
144 | EOF
145 | 
146 | Sh_gsub "?at" "aaaaa" << EOF
147 | $Var1
148 | EOF
149 | 
150 | # external command into a variable with out subshell
151 | lsblk > "$TempFile"
152 | Sh_readvar CommandOutput < "$TempFile"
153 | printf "%s\n" "$CommandOutput"
154 | 


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