Text manipulation commands
#Notes #teachingnotes
echo - send text to stdout
cat - read file
less - read in a pager
head - read from top
tail - read from bottom
more - file perusal filter for crt viewing
sort - sort lines
uniq - report or omit repeated lines
fmt - reformat lines
pr - convert text files for printing
tr - translate or delete characters
Advanced Commads
awk - pattern scanning and processing language
grep - print lines matching pattern
sed - stream editor for filtering and transforming text
#Notes #teachingnotes
echo - send text to stdout
cat - read file
less - read in a pager
head - read from top
tail - read from bottom
more - file perusal filter for crt viewing
sort - sort lines
uniq - report or omit repeated lines
fmt - reformat lines
pr - convert text files for printing
tr - translate or delete characters
Advanced Commads
awk - pattern scanning and processing language
grep - print lines matching pattern
sed - stream editor for filtering and transforming text
Apache Log4j 2 CVE-2021-44228
The vulnerable versions of Log4j 2 are versions 2.0 to version 2.14.1 inclusive. The first fixed version is 2.15.0. We strongly encourage you to update to the latest version if you can. If you are using a version before 2.0, you are also not vulnerable.
https://www.docker.com/blog/apache-log4j-2-cve-2021-44228/
The vulnerable versions of Log4j 2 are versions 2.0 to version 2.14.1 inclusive. The first fixed version is 2.15.0. We strongly encourage you to update to the latest version if you can. If you are using a version before 2.0, you are also not vulnerable.
https://www.docker.com/blog/apache-log4j-2-cve-2021-44228/
Docker
Apache Log4j 2 CVE-2021-44228 | Docker
Learn from Docker experts to simplify and advance your app development and management with Docker. Stay up to date on Docker events and new version
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Neo Void
Void Filled with Neons.
Where was UNiX OS first developed?
Anonymous Quiz
0%
Microsoft Corp., USA
74%
AT&T Bell Labs, USA
5%
IBM, USA
21%
Boreland International, USA
Who first developed UNiX OS?
Anonymous Quiz
0%
Linus Torvalds
16%
Bijarne Stroustrup
0%
Richard Stallman
84%
Dennis Ritchie and Ken Thompson
In which language Unix is written?
Anonymous Quiz
86%
C Language
0%
C++ Language
5%
Assembly Language
10%
COBOL Language
Which of the below is TRUE for unix?
Anonymous Quiz
10%
Unix is a single user, single tasking OS.
10%
Unix is multiuser, single tasking OS
5%
Unix is single user, multi tasking OS.
75%
Unix is multi user, multi tasking OS.
Advanced diskpartition #quicknotes #notes
partitioning using fdisk
primary {sda1 sda2 sda3}, extended {sda4}
physical volume
pvcreate
pvcreate /dev/sda1 /dev/sda2 /dev/sda3
pvs or pvdisplay - for showing
volume group
vgcreate
vgcreate <newname> <path of volumes>
vgs or vgdisplay
logical volume
lvcreate
lvcreate -L +20G -n <newname> <vg name>
lvrename
lvextend
lvreduce
partitioning using fdisk
primary {sda1 sda2 sda3}, extended {sda4}
physical volume
pvcreate
pvcreate /dev/sda1 /dev/sda2 /dev/sda3
pvs or pvdisplay - for showing
volume group
vgcreate
vgcreate <newname> <path of volumes>
vgs or vgdisplay
logical volume
lvcreate
lvcreate -L +20G -n <newname> <vg name>
lvrename
lvextend
lvreduce
Useful bash functions for faster command line usage in a terminal
@linux_mint_resources
cmd-copy() { "${@}" | xclip -sel clip ; }
Syntax: $ cmd-copy <command>
Example: $ cmd-copy sudo apt-get update
This will copy the output of sudo apt-get command in your clipboardcmd-help() { curl cheat.sh/"${1}" ; }
Syntax: $ cmd-help <command>
Example: $ cmd-help tar
This will show you the usage of tar commandcmd-upload() { "${@}" | curl -F 'f:1=<-' ix.io ; }
Syntax: $ cmd-upload <command>
Example: $ cmd-upload neofetch --stdout
This will upload the output of neofetch command to a pastebin service@linux_mint_resources