Technical notes, and other ideas.
Refer: https://askubuntu.com/questions/56683/where-is-the-cron-crontab-log
On a default installation the cron jobs get logged to
/var/log/syslogYou can see just cron jobs in that logfile by running
grep CRON /var/log/syslogThe above grep will return nohthing if your crontab has not been configured yet.
Refer: https://tecadmin.net/tutorial/bash-scripting/bash-debugging/
Example – Enable Debug in Script
You can enable debug mode by adding set -xv option inside a shell script. This is useful to enable debugging for some part of the script.
#!/bin/bash
set -xv # this line will enable debug
cd /var/log/
for i in "*.log"; do
du -sh $i
donecat mobile_errors.txt.txt | grep -o -P '(?<=returned for booking ).*(?= with error code)' | sort | uniq > mobile_error_bookings.txtThe magic of this search is here:
grep -o -P '(?<=beginning string with space at end ).*(?= ending string with space at start of it)In order to make make Cisco AnyConnect work faster on VPN for Firefox, disable IPv6.
about:config
network.dns.disableIPv6: trueRefer: https://www.cyberciti.biz/faq/xclip-linux-insert-files-command-output-intoclipboard/
In order to put it on the global clipboard and just not the terminal clipboard.
alias cbcopy='xclip -selection clipboard'
alias cbpaste='xclip -selection clipboard -o'Installation
sudo apt-get install xclipHow do I use the xclip command for clipboard copy and paste?
Let us copy the output of the following command to the Linux clipboard. The syntax is:
command | xclip
command | xclip -iTo paste selection to standard out or pipe, use the following command again:
xclip -o
xclip -o | myapp1 -arg1The following type of error gets thrown when updating Ubuntu
Failed to fetch http://ubuntu.byteiran.com/ubuntu/dists/jammy/InRelease
sudo apt update always giving Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)Solution was to comment out file with byteiran in it.
sudo subl /etc/apt/sources.list.d/nala-sources.listOther Standard Sources
sudo subl sudo /opt/sublime_text/sublime_text /etc/apt/sources.list# deb http://ubuntu.byteiran.com/ubuntu/ jammy main restricted universe multiverseInstallation
sudo apt-get install goaccessTerminal Version
Use "NCSA Combined Log Format"
goaccess /home/mruckman/Desktop/apache-log-files-202X-mm-dd/var/log/httpd/access_log -o report.html --log-format=COMBINEDThere are keys you can use to navigate panels and browser forward and backwards. Type ? for help screen.
[Tab] and [Shift]+[Tab] key navigates between panels
Hit [Enter] to open a panel and then
[Ctrl] + [f] is forward
[Ctrl] + [b] is backward
Generate an HTML Report
goaccess /home/mruckman/Desktop/apache-log-files-202X-mm-dd/var/log/httpd/access_log -o report.html --log-format=COMBINEDUse readlink with -e flag. Not only it gives you full path to file, it also presents real path of the symlinks
# Linux
readlink -e filename-here.txt
# Macbook
readlink -f filename-here.txtRefer: https://itsfoss.com/access-uefi-from-linux/
It is still a good idea to ensure that your Linux distro uses systemd. Use the given command and if it returns systemd you are good to go:
ps --no-headers -o comm 1Once you figure out that your distro is utilizing systemd, you can use the given command to boot into UEFI settings:
systemctl reboot --firmware-setupLet me break down the used options first:
Refer: https://askubuntu.com/questions/1437945/ubuntu-22-04-cant-play-disney-videos-after-update
Solution for Firefox browser:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:106.0) Gecko/20100101 Firefox/106.0Original Source: https://www.reddit.com/r/linuxquestions/comments/yfjaa1/comment/iu6916h/?utm_source=share&utm_medium=web2x&context=3