여러창에서 하거나
여러 로그인을 통해서 하다 보면 bash 명령어가 정상적으로 쌓이지 않는다.
아래 변수가 정의 되도록 하면 된다는데.. 터미널 별로 그럼 history가 나오게 하려면 어떻게 하지?
| export PROMPT_COMMAND='history -a' |
[링크 : https://askubuntu.com/questions/80371/bash-history-handling-with-multiple-terminals]
| bash multiple session history (0) | 2021.10.01 |
|---|---|
| 특정 pts에서 프로그램 실행하기 (0) | 2021.09.27 |
| socat을 이용한 ttyUSB to TCP (0) | 2021.09.16 |
| 리눅스 콘솔에서 gmail 통해 메일 보내기는 실패 ㅠㅠ (0) | 2021.09.15 |
| linux sw raid (0) | 2021.08.30 |
| glibc 버전 얻기 (0) | 2021.07.09 |
단순하게
$ echo "ls" > /dev/pts/1
을 실행하면
해당 터미널에서 ls 라고만 나오지 실행이 되진 않는다.
누군가가 만들어 둔 ttyecho 라는 예제 프로그램만 눈에 보이네..
[링크 : https://www.humbug.in/2010/utility-to-send-commands-or-data-to-other-terminals-ttypts/]
[링크 : https://unix.stackexchange.com/questions/260503/how-do-i-run-a-command-in-a-different-tty]
[링크 : https://stackoverflow.com/questions/24725051/execute-a-command-in-another-terminal-via-dev-pts]
[링크 : https://admin-ahead.com/forum/general-linux/execute-a-command-on-a-different-ttypts/]
| bash multiple session history (0) | 2021.10.01 |
|---|---|
| 특정 pts에서 프로그램 실행하기 (0) | 2021.09.27 |
| socat을 이용한 ttyUSB to TCP (0) | 2021.09.16 |
| 리눅스 콘솔에서 gmail 통해 메일 보내기는 실패 ㅠㅠ (0) | 2021.09.15 |
| linux sw raid (0) | 2021.08.30 |
| glibc 버전 얻기 (0) | 2021.07.09 |
라즈베리에 달린 USB 시리얼을 아래와 같이 실행해주고
| $ socat /dev/ttyUSB0,raw,echo=0 tcp-listen:8888,reuseaddr |
putty에서 raw 소켓으로 붙이니
양방향으로 소켓을 통해 전송이 가능하다.
로그인은 하고 usbtty로 붙이려면 어떻게 하면 되려나?
[링크 : https://unix.stackexchange.com/questions/201757/]
| bash multiple session history (0) | 2021.10.01 |
|---|---|
| 특정 pts에서 프로그램 실행하기 (0) | 2021.09.27 |
| socat을 이용한 ttyUSB to TCP (0) | 2021.09.16 |
| 리눅스 콘솔에서 gmail 통해 메일 보내기는 실패 ㅠㅠ (0) | 2021.09.15 |
| linux sw raid (0) | 2021.08.30 |
| glibc 버전 얻기 (0) | 2021.07.09 |
smtp 설정이 없어서
[링크 : https://www.tecmint.com/send-email-attachment-from-linux-commandline/]
다른걸 찾아보니 ssmtp 라는걸 통해 보내기도 하네?
| [<-] 220 smtp.gmail.com ESMTP h8sm1096aae22880pfo.64 - gsmtp [->] EHLO kali [<-] 250 SMTPUTF8 [->] STARTTLS [<-] 220 2.0.0 Ready to start TLS [->] EHLO kali [<-] 250 SMTPUTF8 [->] AUTH LOGIN [<-] 334 VXNlcm5edhbAWU6 [->] dmlzaGFsY2hhasd2dWhhbjIyMTJAZ21haWwuY29t [<-] 334 UGFzqc3dmvcmQ36 [<-] 235 2.7.0 Accepted [->] MAIL FROM:<root@kali> [<-] 250 2.1.0 OK h8smqer10962480pfo.64 - gsmtp [->] RCPT TO:<crazy@yopmail.com> [<-] 250 2.1.5 OK h8smqer10962480pfo.64 - gsmtp [->] DATA [<-] 354 Go ahead h8sm10962880pfo.64 - gsmtp [->] Received: by kali (sSMTP sendmail emulation); Thu, 19 Sep 2019 21:45:14 +0530 [->] From: "root" <root@kali> [->] Date: Thu, 19 Sep 2019 21:45:14 +0530 [->] Hey There! This is a test mail [->] [->] . [<-] 250 2.0.0 OK 1568909725 h8smqer10962480pfo.64 - gsmtp [->] QUIT [<-] 221 2.0.0 closing connection h8smqer10962480pfo.64 - gsmtp |
[링크 : https://netcorecloud.com/tutorials/linux-send-mail-from-command-line-using-smtp-server/]
mail을 실행하니 mailbox를 열수 없대서 pi 계정을 mail 그룹에 추가했는데도 안되서
해당 디렉토리 생성하니 파일이 필요하다고 배째는 구나 ㅋㅋ
아무튼 파일까진 생성했는데 외부로 메일 어떻게 보내지?
| $ mail Cannot open mailbox /var/mail/pi: Permission denied No mail for pi $ sudo adduser pi mail Adding user `pi' to group `mail' ... Adding user pi to group mail Done. $ sudo mkdir /var/mail/pi Cannot open mailbox /var/mail/pi: Is a directory No mail for pi $ sudo rm -rf /var/mail/pi $ sudo touch /var/mail/pi Cannot open mailbox /var/mail/pi: Permission denied No mail for pi $ sudo chown pi:pi /var/mail/pi pi@raspberrypi:~ $ mail No mail for pi |
[링크 : https://askubuntu.com/questions/350853/]
메일 릴레이, 구글 워크스페이스 유료버전일 경우 가능
[링크 : https://support.google.com/a/answer/176600?hl=ko]
+
| $ echo -e "to: receiver@domain.tld\nsubject: subject\n"| (cat - && uuencode /path/to/attachment attachment.name) | ssmtp receiver@gmail.com |
[링크 : https://unix.stackexchange.com/questions/44043/how-can-i-send-attachment-with-ssmtp-in-linux]
uuencode 설치하려면 아래 패키지가 필요하다.
| $ sudo apt-get install sharutils |
[링크 : https://askubuntu.com/questions/232440/how-do-i-install-uudecode]
| On ubuntu/debian, this file is in /etc/ssl/certs/ca-certificates.crt. You could symlink it. The /etc/pki/ path is used on Redhat. |
[링크 : https://askubuntu.com/questions/342484/etc-pki-tls-certs-ca-bundle-crt-not-found]
+
마지막 줄은 에러로 뜨는데 도대체 멀까 ㅠㅠ
| [<-] 220 smtp.gmail.com ESMTP y5sm1106947pfb.207 - gsmtp [->] EHLO raspberrypi [<-] 250 SMTPUTF8 [->] STARTTLS [<-] 220 2.0.0 Ready to start TLS [->] EHLO raspberrypi [<-] ssmtp: (raspberrypi) |
+
구글 보안때문에 안되는건가...
[링크 : https://medium.com/swlh/setting-up-gmail-and-other-email-on-a-raspberry-pi-6f7e3ad3d0e]
| 특정 pts에서 프로그램 실행하기 (0) | 2021.09.27 |
|---|---|
| socat을 이용한 ttyUSB to TCP (0) | 2021.09.16 |
| 리눅스 콘솔에서 gmail 통해 메일 보내기는 실패 ㅠㅠ (0) | 2021.09.15 |
| linux sw raid (0) | 2021.08.30 |
| glibc 버전 얻기 (0) | 2021.07.09 |
| 쉘스크립트 반복 실행(인자로 준 횟수 만큼) (0) | 2021.06.11 |
[링크 : https://www.tecmint.com/create-raid-6-in-linux/]
[링크 : https://getmovie.tistory.com/entry/리눅스-software-RAID-설정-및-복원]
| socat을 이용한 ttyUSB to TCP (0) | 2021.09.16 |
|---|---|
| 리눅스 콘솔에서 gmail 통해 메일 보내기는 실패 ㅠㅠ (0) | 2021.09.15 |
| linux sw raid (0) | 2021.08.30 |
| glibc 버전 얻기 (0) | 2021.07.09 |
| 쉘스크립트 반복 실행(인자로 준 횟수 만큼) (0) | 2021.06.11 |
| jobs fg bg (busybox sh) (0) | 2021.06.11 |
일단 내 노트북은 2세대라서 그런가.. 일단 실패 ㅠㅠ
| $ flatpak install org.gnome.NetworkDisplays.flatpakref Note that the directories '/var/lib/flatpak/exports/share' '/home/minimonk/.local/share/flatpak/exports/share' are not in the search path set by the XDG_DATA_DIRS environment variable, so applications installed by Flatpak may not appear on your desktop until the session is restarted. The remote 'flathub', referred to by 'org.gnome.NetworkDisplays' at location https://dl.flathub.org/repo/ contains additional applications. Should the remote be kept for future installations? [Y/n]: Required runtime for org.gnome.NetworkDisplays/x86_64/stable (runtime/org.gnome.Platform/x86_64/40) found in remote flathub Do you want to install it? [Y/n]: org.gnome.NetworkDisplays permissions: ipc network fallback-x11 pulseaudio wayland x11 file access [1] dbus access [2] system dbus access [3] [1] xdg-run/gvfs, xdg-run/gvfsd [2] org.a11y.Bus, org.gtk.vfs, org.gtk.vfs.* ID Branch Op Remote Download 1. [—] org.freedesktop.Platform.GL.default 20.08 i flathub 73.2 MB / 106.4 MB 2. [ ] org.freedesktop.Platform.VAAPI.Intel 20.08 i flathub < 11.6 MB 3. [ ] org.freedesktop.Platform.openh264 2.0 i flathub < 1.5 MB 4. [ ] org.gnome.NetworkDisplays.Locale stable i flathub < 2.3 MB (partial) 5. [ ] org.gnome.Platform.Locale 40 i flathub < 333.7 MB (partial) 6. [ ] org.gtk.Gtk3theme.Yaru 3.22 i flathub < 226.2 kB 7. [ ] org.gnome.Platform 40 i flathub < 363.7 MB 8. [ ] org.gnome.NetworkDisplays stable i flathub < 5.0 MB Installing 8/8… ████████████████████ 100% 759.4 kB/s 00:00 $ flatpak run org.gnome.NetworkDisplays Note that the directories '/var/lib/flatpak/exports/share' '/home/minimonk/.local/share/flatpak/exports/share' are not in the search path set by the XDG_DATA_DIRS environment variable, so applications installed by Flatpak may not appear on your desktop until the session is restarted. Gtk-Message: 18:31:41.762: Failed to load module "canberra-gtk-module" Gtk-Message: 18:31:41.763: Failed to load module "canberra-gtk-module" ** (gnome-network-displays:2): WARNING **: 18:31:42.615: Error calling DBus method during Screencast portal initialization: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.portal.ScreenCast” on object at path /org/freedesktop/portal/desktop ** (gnome-network-displays:2): WARNING **: 18:31:42.615: Error initing screencast portal: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.portal.ScreenCast” on object at path /org/freedesktop/portal/desktop ** (gnome-network-displays:2): WARNING **: 18:31:42.615: Screencasting portal is unavailable! It is required to select the monitor to stream! ** (gnome-network-displays:2): WARNING **: 18:31:42.615: Falling back to X11! You need to fix your setup to avoid issues (XDG Portals and/or mutter screencasting support)!  |
[링크 : https://askubuntu.com/questions/1017249/samsung-tv-mirror-screen]
근데 내 노트북이 요구사항이 되나?
반대로.. 굳이 저런 요구사항이 필요로 되는 이유가 멀까?
[링크 : https://www.intel.co.kr/content/www/kr/ko/support/articles/000014932/emerging-technologies.html]
| ubuntu 무선 미러링 (0) | 2021.07.13 |
|---|---|
| gpsd 현재 좌표 얻기 (0) | 2021.06.05 |
| vino server without login (0) | 2021.04.14 |
| ubuntu gnome-control-center over ssh (0) | 2021.04.14 |
| 우분투 패키지 버전 확인하기 (0) | 2020.12.16 |
| ubuntu 20.04 한글입력기 (2) | 2020.12.07 |
ldd나 getconf 등으로 얻을수도 있지만, 임베디드에서는 해당 실행 파일을 넣지 않는 경우도 있어서 멘붕
[링크 : https://ososoi.tistory.com/79]
[링크 : https://www.linuxquestions.org/questions/linux-software-2/how-to-check-glibc-version-263103/]
라이브러리 버전을 보면 보이긴 한데.. 확실하게 확인하고 싶으니까 좀 더 찾아보니
| # ls -al /lib/libc* -rwxr-xr-x 1 root root 1230544 Jan 1 1970 /lib/libc-2.26.so lrwxrwxrwx 1 root root 12 Jan 1 1970 /lib/libc.so.6 -> libc-2.26.so |
so 인데 실행이 되는게 신기하긴 하네..
| # /lib/libc.so.6 GNU C Library (Buildroot) stable release version 2.26, by Roland McGrath et al. Copyright (C) 2017 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Compiled by GNU CC version 6.4.0. Available extensions: crypt add-on version 2.1 by Michael Glad and others GNU Libidn by Simon Josefsson Native POSIX Threads Library by Ulrich Drepper et al BIND-8.2.3-T5B libc ABIs: UNIQUE For bug reporting instructions, please see: <http://www.gnu.org/software/libc/bugs.html>. |
[링크 : https://dev.to/0xbf/how-to-get-glibc-version-c-lang-26he]
| 리눅스 콘솔에서 gmail 통해 메일 보내기는 실패 ㅠㅠ (0) | 2021.09.15 |
|---|---|
| linux sw raid (0) | 2021.08.30 |
| glibc 버전 얻기 (0) | 2021.07.09 |
| 쉘스크립트 반복 실행(인자로 준 횟수 만큼) (0) | 2021.06.11 |
| jobs fg bg (busybox sh) (0) | 2021.06.11 |
| edid-decode (0) | 2021.06.11 |
| $ cat loop.sh #!/bin/sh #echo $1 for i in $(seq 1 $1); do echo $i done $ ./loop.sh 10 1 2 3 4 5 6 7 8 9 10 |
[링크 : https://stackoverflow.com/questions/255898/how-to-iterate-over-arguments-in-a-bash-script]
| linux sw raid (0) | 2021.08.30 |
|---|---|
| glibc 버전 얻기 (0) | 2021.07.09 |
| 쉘스크립트 반복 실행(인자로 준 횟수 만큼) (0) | 2021.06.11 |
| jobs fg bg (busybox sh) (0) | 2021.06.11 |
| edid-decode (0) | 2021.06.11 |
| 리눅스 커널 로그레벨 변경 (0) | 2021.06.08 |
리눅스 작업 관리
여러개의 백 그라운드 작업 중에 골라서 앞으로 꺼내내려면
fg %2
식으로 jobs에서 뜨는 작업 번호를 % 뒤에 적어 주면 된다.
근데 예전에 기억에는 fg 2 였던거 같은데 바뀐건가?
[링크 : https://blog.naver.com/dudwo567890/130156852012]
| glibc 버전 얻기 (0) | 2021.07.09 |
|---|---|
| 쉘스크립트 반복 실행(인자로 준 횟수 만큼) (0) | 2021.06.11 |
| jobs fg bg (busybox sh) (0) | 2021.06.11 |
| edid-decode (0) | 2021.06.11 |
| 리눅스 커널 로그레벨 변경 (0) | 2021.06.08 |
| dm cache (0) | 2021.04.24 |
라즈베리 파이에서 tvservice 명령으로 edid를 추출하고
| $ tvservice -d edid.dat |
[링크 : https://www.raspberrypi.org/forums/viewtopic.php?t=255563]
edid-decode 프로그램을 통해 해석할 수 있다.
| $ sudo apt-get install edid-decode |
[링크 : http://manpages.ubuntu.com/manpages/bionic/man1/edid-decode.1.html]
| $ edid-decode edid.dat EDID version: 1.3 Manufacturer: SHP Model 11a2 Serial Number 0 Digital display Maximum image size: 154 cm x 87 cm Gamma: 2.20 DPMS levels: Off RGB color display First detailed timing is preferred timing Display x,y Chromaticity: Red: 0.6328, 0.3330 Green: 0.2050, 0.7021 Blue: 0.1503, 0.0810 White: 0.2919, 0.3222 Established timings supported: 720x400@70Hz 9:5 HorFreq: 31469 Hz Clock: 28.320 MHz 640x480@60Hz 4:3 HorFreq: 31469 Hz Clock: 25.175 MHz 640x480@72Hz 4:3 HorFreq: 37900 Hz Clock: 31.500 MHz 640x480@75Hz 4:3 HorFreq: 37500 Hz Clock: 31.500 MHz 800x600@56Hz 4:3 HorFreq: 35200 Hz Clock: 36.000 MHz 800x600@60Hz 4:3 HorFreq: 37900 Hz Clock: 40.000 MHz 800x600@72Hz 4:3 HorFreq: 48100 Hz Clock: 50.000 MHz 800x600@75Hz 4:3 HorFreq: 46900 Hz Clock: 49.500 MHz 1024x768@60Hz 4:3 HorFreq: 48400 Hz Clock: 65.000 MHz 1024x768@70Hz 4:3 HorFreq: 56500 Hz Clock: 75.000 MHz 1024x768@75Hz 4:3 HorFreq: 60000 Hz Clock: 78.750 MHz Standard timings supported: 1400x1050@60Hz 4:3 HorFreq: 64700 Hz Clock: 101.000 MHz 1280x1024@60Hz 5:4 HorFreq: 64000 Hz Clock: 108.000 MHz 1280x800@60Hz 16:10 Detailed mode: Clock 148.500 MHz, 1539 mm x 866 mm 1920 2008 2052 2200 hborder 0 1080 1084 1089 1125 vborder 0 +hsync +vsync VertFreq: 60 Hz, HorFreq: 67500 Hz Detailed mode: Clock 85.500 MHz, 1539 mm x 866 mm 1366 1436 1579 1792 hborder 0 768 771 774 798 vborder 0 +hsync +vsync VertFreq: 59 Hz, HorFreq: 47712 Hz Monitor name: HDMI Monitor ranges (GTF): 23-76Hz V, 15-135kHz H, max dotclock 600MHz Has 1 extension blocks Checksum: 0x00 (valid) CTA extension block Extension version: 3 65 bytes of CTA data Video data block VIC 16 1920x1080@60Hz 16:9 (native) HorFreq: 67500 Hz Clock: 148.500 MHz VIC 32 1920x1080@24Hz 16:9 HorFreq: 27000 Hz Clock: 74.250 MHz VIC 34 1920x1080@30Hz 16:9 HorFreq: 33750 Hz Clock: 74.250 MHz VIC 5 1920x1080i@60Hz 16:9 HorFreq: 33750 Hz Clock: 74.250 MHz VIC 4 1280x720@60Hz 16:9 HorFreq: 45000 Hz Clock: 74.250 MHz VIC 62 1280x720@30Hz 16:9 HorFreq: 22500 Hz Clock: 74.250 MHz VIC 3 720x480@60Hz 16:9 HorFreq: 31469 Hz Clock: 27.000 MHz VIC 2 720x480@60Hz 4:3 HorFreq: 31469 Hz Clock: 27.000 MHz VIC 7 1440x480i@60Hz 16:9 HorFreq: 15734 Hz Clock: 27.000 MHz VIC 6 1440x480i@60Hz 4:3 HorFreq: 15734 Hz Clock: 27.000 MHz VIC 1 640x480@60Hz 4:3 HorFreq: 31469 Hz Clock: 25.175 MHz VIC 95 3840x2160@30Hz 16:9 HorFreq: 67500 Hz Clock: 297.000 MHz VIC 93 3840x2160@24Hz 16:9 HorFreq: 54000 Hz Clock: 297.000 MHz Audio data block Linear PCM, max channels 2 Supported sample rates (kHz): 48 44.1 32 Supported sample sizes (bits): 24 20 16 AC-3, max channels 6 Supported sample rates (kHz): 48 44.1 32 Maximum bit rate: 640 kb/s AAC, max channels 6 Supported sample rates (kHz): 48 44.1 32 Maximum bit rate: 640 kb/s Dolby Digital+, max channels 8 Supported sample rates (kHz): 48 44.1 32 MAT (MLP), max channels 8 Supported sample rates (kHz): 192 96 48 44.1 Speaker allocation data block Speaker map: FL/FR - Front Left/Right Vendor-specific data block, OUI 000c03 (HDMI) Source physical address 1.0.0.0 Supports_AI DC_36bit DC_30bit DC_Y444 Maximum TMDS clock: 300MHz Supported Content Types: Graphics Photo Cinema Game Extended HDMI video details: HDMI VIC 1 3840x2160@30Hz 16:9 HorFreq: 67500 Hz Clock: 297.000 MHz HDMI VIC 3 3840x2160@24Hz 16:9 HorFreq: 54000 Hz Clock: 297.000 MHz Extended tag: Video capability data block YCbCr quantization: No Data (0) RGB quantization: Selectable (via AVI Q) (1) PT scan behaviour: Support both over- and underscan (3) IT scan behaviour: Support both over- and underscan (3) CE scan behaviour: Support both over- and underscan (3) Extended tag: YCbCr 4:2:0 video data block VIC 97 3840x2160@60Hz 16:9 HorFreq: 135000 Hz Clock: 297.000 MHz Extended tag: Vendor-specific video data block Basic audio support Supports YCbCr 4:4:4 Supports YCbCr 4:2:2 1 native detailed modes Detailed mode: Clock 74.250 MHz, 1539 mm x 866 mm 1920 2558 2602 2750 hborder 0 1080 1084 1089 1125 vborder 0 +hsync +vsync VertFreq: 24 Hz, HorFreq: 27000 Hz Checksum: 0x00 (valid) |
| 쉘스크립트 반복 실행(인자로 준 횟수 만큼) (0) | 2021.06.11 |
|---|---|
| jobs fg bg (busybox sh) (0) | 2021.06.11 |
| edid-decode (0) | 2021.06.11 |
| 리눅스 커널 로그레벨 변경 (0) | 2021.06.08 |
| dm cache (0) | 2021.04.24 |
| watch 복수개 명령어 실행하기 (0) | 2021.03.08 |
|
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