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Eschwartz, to be fair, they didn't sed pacman.conf themselves. They read pacman.conf line by line in a clumsy and pointless loop and sed''ed part of each line for no reason only to check whether it matched 'IgnorePkg' and then only to oddly and conditionally append a space then a value to a simple variable when an array would be much easier needing no conditional or spaces.
And this is you being "fair"...
Honest, yes, I will grant you that. But generally the phrase "to be fair" is used by people extending mercy, not additional objections.
If pacman-conf were not an option, that entire loop could just be:
IGNORE=$(sed -n 's/^IgnorePkg[^=]*=//p' /etc/pacman.conf) # or better as an array IGNORE=($(sed -n 's/^IgnorePkg[^=]*=//p' /etc/pacman.conf))
If it comes to that, matching on 'IgnorePkg222 = nope' and finding that the "nope" package should be ignored, is rather erroneous...
Don't match:
^IgnorePkg[^=]*=
Do match:
^IgnorePkg[[:space:]]*=
Managing AUR repos The Right Way -- aurpublish (now a standalone tool)
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Good revision to my sed command. To be fair, I'm an idiot.
"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman
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And to be fair, learned something new again today. Of course there was an easier way
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I've found this nice site that is missing an rss but gives you updates about new free games, so i wrote a little script that checks it and send me a notification when there is a new free game; didn't tested it deeply... yet!
It uses the handy "sendemail" tool from aur.
#!/bin/bash
wdir=/koko/scripts/gamecheck
f1="$wdir/1.txt"
f2="$wdir/2.txt"
mkdir "$wdir" &>/dev/null
interval=7200 #secs
function notify() {
/usr/bin/sendEmail \
-f source_email@gmail.com \
-t dest_email@gmail.com \
-s smtp.gmail.com:25 \
-xu gmail_username \
-xp gmail_password \
-u "GameCheck" \
-m "New updates on: https://givemekey.com/?s="
}
function check_out() {
curl "https://givemekey.com/?s=" |\
tr "<" "\n"|\
grep free |\
grep "title\=" |\
cut -d \" -f 2
}
check_out > "$f1"
while true ; do
sleep $interval
check_out > "$f2"
if [ $(<"$f1") != $(<"$f2") ] ; then
notify "$f2"
fi
cp "$f2" "$f1"
done
...and a systemd service as well
[Unit]
Description=Check for free games
[Service]
Type=simple
ExecStart=/home/koko/scripts/gamecheck.sh
[Install]
WantedBy=default.target
Last edited by kokoko3k (2018-10-05 08:55:15)
Help me to improve ssh-rdp !
Retroarch User? Try my koko-aio shader !
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This one will set the same "custom" refresh and resolution for all of the connected monitors.
I use it as a convenient way to play games with lower refresh rates when my GPU can't handle more.
#!/bin/bash
if [ ! $# = 2 ] ; then
echo Example $(basename $0) 1280x1024 75
exit
fi
w=$(cut -d "x" -f 1 <<< "$1")
h=$(cut -d "x" -f 2 <<< "$1")
hz=$2
#Genera la modeline
GTF_OUT=$(gtf $w $h $hz|grep Modeline)
MODE_NAME=koko_"$w"x"$h"_"$hz"
TIMINGS=$(grep Modeline <<< $GTF_OUT |cut -d \" -f 3)
MODELINE="$MODE_NAME $TIMINGS"
#aggiungo al pool:
xrandr --newmode $MODELINE
#Aggiunge e setta il modo custom a tutti i monitor
MONITORS=$(xrandr|grep " conne"|cut -d " " -f 1|tr \\n " ")
for MONITOR in $MONITORS ; do
xrandr --addmode $MONITOR $MODE_NAME
xrandr --output $MONITOR --mode $MODE_NAME
done
echo "Press ENTER in 10 seconds to keep settings"
read -n 1 -t 10
if [ ! $? == 0 ]; then
#Cleanup:
for MONITOR in $MONITORS ; do
xrandr --output $MONITOR --preferred
xrandr --delmode $MONITOR $MODE_NAME
xrandr --rmmode $MODE_NAME
done
fi
EDIT:
removed 2 useless echo, before someone pointed it out; ready for the next
Last edited by kokoko3k (2018-10-24 13:33:43)
Help me to improve ssh-rdp !
Retroarch User? Try my koko-aio shader !
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You seem to do a lot of munging of variables only to undo it later. For example, you have a subshell and pipeline to extract the width an height from $1, but then later you use "$w"x"$h" to put them back together. You only need the individual width and height values once, so just extract them there, and use shell builtins to do it, e.g.:
timings=$(gtf ${1%x*} ${1#*x} $2 | awk '/Modeline/ { print $3; }')
Also note, the use of awk instead of grep and cut.
I can't test it, but the following should do the same thing as your script:
#!/bin/sh
if [ ! $# = 2 ] ; then
echo Example $(basename $0) 1280x1024 75
exit
fi
modename="koko_$1_$2"
xrandr --newmode $modename "$(gtf ${1%x*} ${1#*x} $2 | awk '/Modeline/ { $1=""; $2=""; print; }')"
monitors=$(xrandr | awk '/ connected/ { print $1; }')
for monitor in $monitors; do
xrandr --addmode $monitor $modename
xrandr --output $monitor --mode $modename
done
read -p "Press ENTER in 10 seconds to keep settings" -n 1 -t 10 && exit
for monitor in $monitors; do
xrandr --output $monitor --preferred
xrandr --delmode $monitor $modename
done
xrandr --rmmode $modename
One thing that stands out is that almost all of the output of gtf is completely ignored - only the timing value is extracted and passed to xrandr's --newmode. Is this really how that should work? (edit: ah, I misunerstood your cut pipeline, I've modified my version to get the equivalent output from gtf.)
Last edited by Trilby (2018-10-24 14:05:48)
"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman
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You seem to do a lot of munging of variables only to undo it later.
D'oh, you're right ^_^
Also note, the use of awk instead of grep and cut.
Unfortunately i'm not really familiar with it; i've to sort it out.
...apart from that, i prefer to use more and descriptive variables so that i'll not spend too much time next time to understand what i wrote.
Help me to improve ssh-rdp !
Retroarch User? Try my koko-aio shader !
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You can still name variables and be more verbose than my examples without needing to use subshells with long pipelines:
...
width=${1%x*}
height=${1#*x}
timings=$(gtf $width $height ...)
My personal style is to never create a variable for something that will only be used once, unless the calculation of the value is pretty complex so that splitting off the calculation (and assignment) to a new line makes it easier to read. In this case "${1%x*}" is quite short, and never reused, so I'd personally not use a variable for it - but that's a stylistic choice.
"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman
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Man I just love writing little programs. Here's a few that may be useful:
Converts JSON to YAML for easy reading (or further processing):
$ curl -s http://api.icndb.com/jokes/random | ./json-yaml
type: success
value:
id: 415
joke: When Chuck Norris wants an egg, he cracks open a chicken.
categories: []
A command line NOS Teletekst reader (a Dutch teletext system, like BBC's Ceefax).
My favourite one. Run a command in other directories:
$ within code/* - git status
code/json-yaml: nothing to commit, working tree clean
code/nostt: nothing to commit, working tree clean
code/within: nothing to commit, working tree clean
code/dated: nothing to commit, working tree clean
Adds a timestamp to every line:
$ tail -f test.txt | dated
11/07/18 21:28:31 Hello
11/07/18 21:28:40 World!
$ tail -f test.txt | dated -f "[%H:%M] "
[21:32] Hello
[21:33] World!
Of course there are AUR packages for all of them
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I like to have these functions loaded at login (i have them in my .aliases file) to have them at the ready:
This one helps me quickly fire up a new database to quickly start a new project
function mkdb() {
echo
if [ 2 -gt $# ] ;then
echo "mkdb - invalid parameters"
echo "** usage: mkdb database_name [user_name] password"
echo "** if user_name is not specified database_name will be used also for user_name"
else
db_name=$1
if [ $# -gt 2 ]
then
user_name=$2
pass=$3
else
user_name=$1
pass=$2
fi
echo
echo "Creating database '$db_name' and user '$user_name' and granting access to database to the new user."
mysql -u root --execute="CREATE USER IF NOT EXISTS '$user_name'@'localhost' IDENTIFIED BY '$pass';GRANT USAGE ON *.* TO '$user_name'@'localhost' REQUIRE NONE WITH MAX_QUERIES_PER_HOUR 0 MAX_CONNECTIONS_PER_HOUR 0 MAX_UPDATES_PER_HOUR 0 MAX_USER_CONNECTIONS 0;CREATE DATABASE IF NOT EXISTS $db_name;GRANT ALL PRIVILEGES ON $db_name.* TO '$user_name'@'localhost';"
fi
echo
}
This one I use to swap hosts lists based on my needs: when developing I like to have all my project domains pointing to 127.0.0.1, and when I deploy i like to see them live. This makes the deploy easier, no need to search and replace for 'localhost' in the project files (or db dump).
#rotate hosts files
function chost {
set -e # stop running if we encounter an error
if [[ ! -f /etc/hostssecondary ]]; then
sudo \touch /etc/hostssecondary
fi
echo
echo --------------------------------------------
sudo \mv -f /etc/hosts /etc/hoststempname
sudo \mv -f /etc/hostssecondary /etc/hosts
sudo \mv -f /etc/hoststempname /etc/hostssecondary
set +e
cat /etc/hosts
echo
echo --------------------------------------------
echo
}
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You could just set pass to the last argument, user to the first argument, then really simplify that conditional to a single line:
[ $# -gt 2 ] && user_name=$2
If you are using BASH getting the last argument is just array manipulation, but from the single [ I'd gather you may not be using (exclusively) BASH, so you can use a for loop:
db_name= $1
user_name=$1
[ $# -gt 2 ] && user_name=$2
for arg; do :; done
pass=$arg
Last edited by Trilby (2018-11-25 22:40:08)
"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman
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great tips, thanks
for the first one, i'd normally add the optional parameter at the end, but in this case I rather wanted to have the natural flow of thought on usage, even if it meant I'd have to do a bit of code acrobatics for this end.
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I use emacs with transparency enabled and this script helps me follow tutorials / documentation more easily.
Seems a little esoteric, but it's really nice being able to switch focus to your webbrowser without losing site of your text editor and switch tabs, play/pause a video, go to a url, etc...
I have it bound to Hyper-w, pressing it once will switch focus to firefox, pressing it consecutively is the same as alt-tab selecting firefox.
#!/bin/bash
focus="$(xdotool getwindowfocus)"
# if firefox exists in the current desktop
firefox="$(xdotool search --desktop "$(xdotool get_desktop)" --name "Firefox")"
# if firefox is running
firefoxExists="$(wmctrl -l | grep Firefox)"
if [[ -z $firefoxExists ]];then
# firefox isn't running, launch it
firefox &
wmctrl -a "Firefox"
wmctrl -r "Firefox" -N "$BROWSER"
# delay to account for button debounce
sleep .5
elif [[ $firefox ]];then
# firefox is running and exists in the current desktop
visible="$(xdotool search --desktop "$(xdotool get_desktop)" --onlyvisible --name "Firefox")"
exists="$(xdotool search --desktop "$(xdotool get_desktop)" --name "Firefox")"
if (($firefox != $focus)); then
# firefox isn't focused (or it could be minimized), raise it without
# bringing it to the front of the window stack
wmctrl -r "Firefox" -b add,below
elif (($firefox == $focus)); then
# firefox is focused, make it the top most window
wmctrl -r "Firefox" -b remove,below
xdotool search --desktop "$(xdotool get_desktop)" --name "Firefox" windowraise
fi
# select window with the name "Firefox"
wmctrl -a "Firefox"
fi
# wmctrl -r "Firefox" -N $BROWSER
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Just install a tiling window manager
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emacs is a tiling window manager among many other things, isn't it?
Install a good tiling window manager (and a text edtior while you're at it! )
Last edited by Trilby (2018-12-03 15:10:11)
"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman
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Just install a tiling window manager
i just use xfwm since i prefer my windows full screened, seeing spaces between windows distracts me.
emacs is a tiling window manager among many other things, isn't it?
Install a good tiling window manager (and a text edtior while you're at it! )
the defaults for all text editors are bad, i use my own superior version of emacs, which is more of a work of art (as intended) than it is some finely tuned work tool with the specifications of its original maker
all in all my script could use a little work now that i'm looking closely at it... hrmmmm..... also using terminal text editors feels so clunky after i've experienced the full power of the gui!
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i just use xfwm since i prefer my windows full screened, seeing spaces between windows distracts me.
In compiz, you can use the "Place" and "Window Rules" plugins to mandate certain programs to open on specific viewports and always be fullscreen. It also has a handy drop-zone tiling plugin, and you can see through windows using the "Opacity, Brightness, and Saturation" plugin. In addition, all desktop and window management can be mouse-operated *never used emacs in my life*
more of a work of art (as intended) than it is some finely tuned work tool
For the artist who makes or modifies his own tools, is there a difference?
Last edited by quequotion (2018-12-04 15:58:29)
makepkg-optimize · indicator-powersave · pantheon-{3d,lite} · {pantheon,higan}-qq
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This is a script that i wrote for maintaining my gentoo boxes at home.nothing fancy, just makes everything a bit faster.
#!/bin/bash
# each item you want to prompt about in order
order=(eix revdep world depclean update ecleanpkg ecleandist news)
# prompt string hash for each item
declare -A prompts=(
[eix]="Sync custom package repository and the Gentoo ebuild repository using eix"
[revdep]="Check for and rebuild missing libraries (not normally needed)"
[world]="Update world"
[depclean]="Remove packages no longer needed"
[update]="Manage configuration changes after an emerge completes"
[ecleanpkg]="Cleaning packages"
[ecleandist]="Clean the source files directory by passing the distfiles argument"
[news]="Read news."
)
# the command for each item
eix=(eix-sync)
revdep=(revdep-rebuild -i -- -av)
world=(emerge -avuND @world)
depclean=(emerge -avc)
update=(etc-update)
ecleanpkg=(eclean-pkg)
ecleandist=(eclean-dist)
news=(eselect news read)
for item in "${order[@]}" ; do
prompt="${prompts[$item]}"
# don't try this at home
eval "command=(\"\${$item[@]}\")"
while read -n 1 -r -p "$prompt: (Y/n): " ; do
case "$REPLY" in
# permit the user to hit enter to get the default behavior
[Yy]|'')
# commands are always run with sudo
sudo "${command[@]}"
break
;;
[Nn])
echo
break
;;
*)
printf '\nUnrecognized response "%s". please use Y or N\n' "$REPLY"
;;
esac
done
done
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Getting root ssh on my LTE modem/router https://github.com/ugjka/B593s-22_SSH
https://ugjka.net
paru > yay | vesktop > discord
pacman -S spotify-launcher
mount /dev/disk/by-...
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I'm still deciiding on a terminal emulator.
Last edited by ackt1c (2022-11-05 12:37:57)
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Note that there is no need for those semicolons. Nor is there a need for an exit command at the end of a script. And with those two points there becomes no need for the script. Just bind the command you want:
urxvt -g 20x8+1280 -e sh -c "cal && sleep 7"
"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman
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wrote my own network speedtest server/client https://github.com/ugjka/speed
probably not the most advanced thing, but unlike speedtest-cli i can see the results in real time
also it was a fun exercise
https://ugjka.net
paru > yay | vesktop > discord
pacman -S spotify-launcher
mount /dev/disk/by-...
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Hello Archers, it's been a while.
This is for using TCPLAY with multiple containers & paths, 1 or no key(mixed) and can (un)mount multiple containers, one by one!
There exist quite a few scripts for TCPLAY but far as I can tell, none of them handle key/key-less & multiple volumes in one go.
I use this for my NAS, which hasn't seen an update in almost 4 years:(.
It's also usable for local containers.
Edit this variable values:
cryptpath: where the encrypted containers are stored, do not remove parentheses.
mountp: where the container will be mounted to, default is /mnt
keypath: where your keys are stored, leaf empty for no keys
if you provide a keypath, you can still use key-less containers.
delay: if your containers are on a NAS, the disks may enter 'sleep-state'
example: mine needs less the 3 seconds to wake I set 'delay=3'
Alien files in the same directory with your containers will clutter the mount output(select)!
Containers with the same name in different directories are left out of 'mount' results until unmount.
For mount or unmount I show the encrypted containers name + path & f.i. not the mount point!
Have fun;) mark
#!/bin/bash
#set -xe
user=${SUDO_USER:-$(whoami)}
# edit the mext 4 values
cryptpath=(/home/"$user"/seahole/owned
/home/"$user"/ctainers)
mountp=/mnt
keypath=
delay=0
# Edit with care below this line
trap 'rm -f "$tmpdev"' 0 1 2
tmpdev=$(tmpdev 2> /dev/null) || tmpdev=/tmp/tmpdev
[[ $EUID = 0 ]] || exit 1
# finds containers
_crmnt() {
shopt -s nullglob
mapfile -t crmnt < <( find "${cryptpath[@]}" -type f )
shopt -u nullglob
}
# choice list && final variables
_crdev() {
select mnt in "${crmnt[@]}" exit; do
case $mnt in
exit) exit;;
*) printf "%s\\n" "$mnt" > "$tmpdev"; break;;
esac
done
cryptdev=$(basename "$(<"$tmpdev")")
crpath=$(dirname "$(<"$tmpdev")")
}
_mount() {
_crmnt
mounted=$(find /dev/mapper -type l | awk -F '/' '{print $1 $NF}')
for mnt in $mounted; do
crmnt=(${crmnt[@]/*${mnt}*/})
done
_crdev
loopdev=$(losetup -f)
losetup "$loopdev" "$crpath"/"$cryptdev" || exit 1
[[ -n $keypath ]] && read -r -s -p "key to use? [Enter for no key]: " key
if [[ ! -z $key ]]; then
tcplay -m "$cryptdev" -d "$loopdev" -k "$keypath"/"$key" || exit 1
else
tcplay -m "$cryptdev" -d "$loopdev" || exit 1
fi
[[ -d $mountp/$cryptdev ]] || mkdir "$mountp"/"$cryptdev"
mount -o nodev,noexec /dev/mapper/"$cryptdev" "$mountp"/"$cryptdev"
}
_unmount() {
_crmnt
mounted=$(losetup -a | awk '{gsub(/\(|\)/,"",$3);print $3}')
crmnt=()
for mnt in $mounted; do
for crt in "${crmnt[@]}"; do
[[ $mnt == "$crt" ]] && continue 2
done
crmnt+=( "$mnt" )
done
_crdev
umount "$mountp"/"$cryptdev" && sleep "$delay" || exit 1
dmsetup remove "$cryptdev" || exit 1
losetup -d "$(losetup -j "$crpath"/"$cryptdev" | awk -F ':' '{print $1}')"
}
if [[ $1 == m ]]; then
_mount
elif [[ $1 == u ]]; then
_unmount
else
printf "%s\\n" "Options: [ m <mount> ] [ u <unmount> ]"
fi
exit 0
Last edited by qinohe (2019-01-10 16:51:01)
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Forgot to post this boot script I use together with the tcplay script in the previous post, it's for i3 and uses dmenu.
It prevents to reboot/poweroff if an device was found in '/dev/mapper' (function _inwork)
You would need to change things if you encrypt parts of the system, but since I don't...
Of course you don't need to use it this way but may give you an idea;)
#!/bin/sh
set -xe
if [ -f "$XDG_CONFIG_HOME"/dmenu/dmenurc ];then
. "$XDG_CONFIG_HOME"/dmenu/dmenurc
else
demcmdp='dmenu'
fi
_mounted() {
eval|
dmenu -fn 'Monospace-40:normal' -nb '#222222' -sb '#222222' \
-sf '#da691c' -p 'cryptainer-mounted' -w '640' -x '660' -y '500'
}
_inwork() {
[ ! -n "$(find /dev/mapper -type l)" ] && return || _mounted && exit 1
}
_pwr() {
pwr=$(echo "exit
logout
lock
reboot
suspend
hibernate
poweroff" \
| $demcmdp -l 10 -p 'Power:' -w '280')
}
_pwr
if [ "$pwr" = reboot ] || [ "$pwr" = poweroff ]; then
_inwork
systemctl "$pwr"
elif [ "$pwr" = logout ];then
i3-msg exit
elif [ "$pwr" = exit ]; then
pkill -15 -t tty"$XDG_VTNR" Xorg
elif [ "$pwr" = lock ]; then
i3lock -u -c 222222 -i ~/scrot.png
elif [ "$pwr" = suspend ]; then
i3lock && systemctl suspend
elif [ "$pwr" = hibernate ]; then
i3lock && systemctl hibernate
fi
exit 0
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In the US, AT&T widely uses an Arris BGW210-700 Broadband
Gateway (home portal) for it's residential broadband VDSL,
and fiber customers. So it's likely that an arch user has one.
This simple script will view/save the firewall log out of it
without having to navigate the web interface for it, and
without having a syslog client running for it.
Bash, curl, and awk:
#! /usr/bin/bash
#Display firewall log data from Arris BGW210-700
#url of the gateway
url="http://192.168.0.1"
read -p $'Firewall log viewer for BGW210\n
View log or save to file? v or s: ' vs
case $vs in
[Vv]* ) curl "$url"/cgi-bin/logs.ha |
awk -v OFS='\t' -F '[<|>]'\
'/td/{print $9, $13, $17, $21, $25}'
;;
[Ss]* ) curl "$url"/cgi-bin/logs.ha |
awk -v OFS='\t' -F '[<|>]'\
'/td/{print $9, $13, $17, $21, $25}'\
>> BGW210_fwalllog.txt
;;
esac
Simple python script for it using Python3, urllib and html.parser
#! /usr/bin/python
#View firewall log from BGW210-700
import urllib.request
from html.parser import HTMLParser
#url of the gateway
url = 'http://192.168.0.1'
req = urllib.request.Request((url)+'/cgi-bin/logs.ha')
doc = urllib.request.urlopen(req).read()
log = []
class Parser(HTMLParser):
keep_tag = False
def handle_starttag(self, tag, attrs):
if tag == 'td':
self.keep_tag = True
def handle_data(self, data):
if self.keep_tag:
log.append(data)
self.keep_tag = False
Parser().feed(str(doc))
#Simple format output
a = 0; b = 6; c = len(log)
while True:
if b > c:
break
print (log[(a):(b)])
a = a + 6; b = b + 6
Simple python script for it using Python3, urllib and lxml.html
#! /usr/bin/python
import urllib.request
import lxml.html
#url of the gateway
url = 'http://172.16.0.1'
req = urllib.request.Request((url)+'/cgi-bin/logs.ha')
html = urllib.request.urlopen(req).read()
root = lxml.html.fromstring(html)
log = []
for i in root.xpath('//td'):
log.append(i.text_content())
a = 0; b = 6; c = len(log)
while True:
if b > c:
break
print (log[(a):(b)])
a = a + 6; b = b + 6
As you can see all they do is parse the <td></td> tags.
If you want a continuous log for the BGW210 then look at
pacman -Si syslog-ng
https://wiki.archlinux.org/index.php/Syslog-ng
A most basic config that I've tested/works for it at time
of writing.
/etc/syslog-ng/syslog-ng.conf
@version: 3.18
@include "scl.conf"
options {time-reap(30); mark-freq(10); keep-hostname(yes); };
source s_network { syslog(ip(0.0.0.0) transport(udp) port(514)); };
destination d_logs { file("/var/log/BGW210.log" owner("root") group("root") perm(0777)); };
log { source(s_network); destination(d_logs); };
You will of course have to enable syslog on port 514 on the BGW210.
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