HackRF Portapack Mayhem Firmware, Search/Freqman evolution branch
On top of the existing ‘search and stay X seconds after a match’ the SearchApp have been updated with a ‘search and stay’ mode: stay while matching, leave after X seconds of inactivity, reset counters on activity during the wait. mode,
To use it just specify a negative value in the ‘wait’ field using the rotary encoder.
As some have some problems getting the bin back from discord, here you are:
The documentation is on the wiki, here:
Learn How To Code
A lot of us already know the excellent https://openclassrooms.com/fr/
There is also, in a more game dev oriented way, https://www.codingame.com/start or https://codecombat.com/
Learning is fun, but it it even funnier if you’re learning while gaming 😉
CSS trick for rowspan and nth-child matching
If ever you try to make a table with a single <td> matching more than one line using rowspan, your css that was using nth-child to customize each column is working badly. Only the first line of each rowspan is correctly recognized by the nth-child. All other lines are all shifted by one.
That’s because the css engine is not taking in accound the rowspan attribute.
In my case it was to add all the <td> hidden by the rowspan like <td style=”display:none”> so they are here for the css engine to count properly, but not displayed at all.
grep: exclude grep from ps results
Tip: use a regexp so the grep is not matching the line where is sits in ps list:
ps -aef | grep "[m]atchingexp" will match anything starting with letter ‘m’ and followed by ‘
atchingexp‘ , which will not be in the ps list as it will contain the  around the first letter of your match
grep: retain colors when piping
grep -color is not producing color symbols if it detects that the output is not a terminal.
grep -color=auto is doing the same, that is not producing color symbols if it detects that the output is not a terminal.
The solution is to use “grep -color=always“ in the place that need it.
Do not put it in an alias of grep as it would break some code somewhere else. Color symbols are strings like “ESC[35m” and they will be inserted in the text.
Orion and a piece of Perseus
I had some luck with Orion tonight, before the mist and the cold fell down in the night.
The second photo is a piece of Perseus. I should have zoomed less. I did not have the time to adjust because of the mist.
Krampus Hack 2021
KrampusHack is a Secret Santa game jam. This means that participants secretly make a game for someone else, suited to their wishes.
Here is a video of all 9 finisher entries. Have fun 🙂
Recursive grep FTW
In case you’re trying to search recursively for a specific file type and data mask, grep -r is not enough to bring the desired result.
You’ll have to use –include ‘type’ and then, even if the directory does not contain any of the given filetype in root, it’s still working.
grep -r --include '*.extension' 'Text to match' directory grep -r --include '*.cpp' 'Audio' .
Portapack firmware with Search App and updated Freqman files (based on latest next )
- I’ve build an up to date firmware with the last updates from next and the last version from search app and freqman enhancements.
- The Search app is in the ‘receive’ menu
- The documentation is here : https://github.com/GullCode/portapack-mayhem/wiki/Search
- -Freqman now do understand freq files with that format:
f=468000000 f=468000000,d=Single Freq f=468000000,m=AM,d=Single Freq AM f=468000000,m=NFM,d=Single Freq NFM f=468000000,m=WFM,d=Single Freq WFM f=468000000,m=AM,b=DSB,d=Single Freq AM DSB f=468000000,m=AM,b=USB,d=Single Freq AM USB f=468000000,m=AM,b=LSB,d=Single Freq AM LSB a=87000000,b=110000000 a=87000000,b=110000000,m=AM,s=100KHz,d=AM radio search a=87000000,b=110000000,m=AM,b=DSB,s=250KHz,d=AM radio search LSB a=87000000,b=110000000,m=WFM,b=16k,s=50KHz,d=WFM radio search s=50KHz r=430150000,t=430550000 r=430150000,t=430550000,d=HAM radio r=430150000,t=430550000,m=AM,b=DSB,d=HAM radio
- The freqman GUI have note been improved and may show partial results on new formatted lines
- Description of the fields:
f=freq for one frequency or a=start_frequency,b=end_frequency for a range
- All fields except ‘f=freq’ or ‘a=freqA,b=freqB’ are mandatory. If nothing specified actual value is used.
- As a reminder :
-Most of the time if the Search app is not working as you expected it’s coming from a SDCARD problem.
-You need a SDCARD for the Search app to save settings between runs and between settings menu / main gui, and you need a SEARCH folder at the root of it.
-Don’t forget to check that by default the ‘input: load’ fields in ‘search app -> params -> more ‘ are all checked.
-You HAVE to click save in ordre to save the settings.
GitLab: WARNING: gl-sast-report.json: no matching files
When enabling SAST in a gitlab project you can have that kind of error at the tests part:
The yaml provided is not containing the needed part:
artifacts: name: sast paths: - gl-sast-report.json reports: sast: gl-sast-report.json when: always
Compare two json in shell
I did it using the JQ command line tool from https://stedolan.github.io/jq/
Exemple: list all json files from current directory and print the difference with updated jsons from updated/ directory
for user in `ls updated-users` do # print file name echo $user # simple diff <(jq -S . users/$user) <(jq -S . updated-users/$user) # or full on one side and the diff on the other side # diff -y --left-column <(jq -S . users/$user) <(jq -S . updated-users/$user) # or full on one side and the diff on the other side, colored # diff -y --left-column --color <(jq -S . users/$user) <(jq -S . updated-users/$user) done
#shell #diff #json #script