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Bypass with hexencoding, dump /etc/passwd
This is sample output - yours may be different.
0

cat $(echo -e "\x2f\x65\x74\x63\x2f\x70\x61\x73\x73\x77\x64")

wuseman1 · 2023-01-14 06:43:27 154
List all files and folders with attributes
This is sample output - yours may be different.
0

gci -rec | Select-Object Mode, Name, CreationTime, LastAccessTime, LastWriteTime | ft -autosize

swarzynski · 2022-12-07 13:24:42 542
Copy a file with progress and save hash to a different file
This is sample output - yours may be different.
3

pv file.txt | tee >(sha1sum > file.sha1) > file-copy.txt

bugmenot · 2022-11-24 20:23:02 392
AWS s3api CLI can be used to filter objects in a S3 bucket based on the Last Modified Date using the --query filter.

as explained in the blog post: https://www.learnaws.org/2022/10/10/aws-s3-list-files-date/
This is sample output - yours may be different.
-1

aws s3api list-objects-v2 --bucket my-bucket --query 'Contents[?LastModified>`2022-01-01`].Key'

shantanuo · 2022-11-22 07:57:44 336
Unzip 25 zip files files at once
This is sample output - yours may be different.
1

find . -maxdepth 1 -name '*.zip' -print0 | xargs -0 -I {} -P 25 unzip {}

wuseman1 · 2022-11-20 14:07:44 248
Convert an image sequence into a video
This is sample output - yours may be different.
4

ffmpeg -framerate 30 -pattern_type glob -i '*.jpg' -c:v libx264 -pix_fmt yuv420p out.mp4

alikhalil · 2022-11-14 07:20:53 365
MySQL: Filter out specific tables from an existing mysqldump file with awk

This command works only if the line "DROP TABLE IF EXISTS" exists for all tables in the mysqldump file. It acts like a state machine.
This is sample output - yours may be different.
0

cat db_dump.sql | awk '/DROP TABLE IF EXISTS/ { skip = $5 ~ /table1|table2/ } !skip { print $0 }' > db_dump_filtered.sql

stf42 · 2022-10-30 16:58:57 621

How To Display Bash History Without Line Numbers

userful for direct copy & paste command for doumenation or next using Show Sample Output

history -w /dev/stdout

aysadk · 2022-10-29 15:17:37 472

merge multiple jpgs to one picture vertikal

# convert tool is from deb imagemagick-6.q16 apt install imagemagick-6.q16 Show Sample Output
This is sample output - yours may be different.
```
Output_merged_picture.jpg
```
2

convert picture-1.jpg picture-2.jpg picture-3.jpg -append Output_merged_picture.jpg

aysadk · 2022-10-25 15:34:48 342

Start monitoring your server with a single curl command.

activate the first alert and the next ones are activated automatically. Show Sample Output

curl ping.gl

wuseman1 · 2022-10-15 13:24:45 393

Show a zoomable world map

show a zoomable world map
This is sample output - yours may be different.
4

telnet mapscii.me

wuseman1 · 2022-10-15 13:15:17 307
List all packages in Ubuntu/Debian that no package depends on
This is sample output - yours may be different.
1

dpkg-query --show --showformat='${Package}\t${Status}\n' | tac | awk '/installed$/ {print $1}' | xargs apt-cache rdepends --installed | tac | awk '{ if (/^ /) ++deps; else if (!/:$/) { if (!deps) print; deps = 0 } }'

swarzynski · 2022-09-29 07:55:16 443
Print nic name of current connection
This is sample output - yours may be different.
2

nmcli -g name,type connection show --active|awk -F: '/ethernet|wireless/ { print $1 }'

wuseman1 · 2022-09-22 20:16:21 452
Simple tar

Simple commant to tar a path
This is sample output - yours may be different.
-3

tar -cvzf file.tar.gz path

x3mboy · 2022-09-17 16:40:09 328
rclone - dump teamdrive config to config file
This is sample output - yours may be different.
1

$ rclone backend -o your-config.conf drives mydrive:

dbiesecke · 2022-09-09 15:58:16 294
url redirect tracer with curl

tracing redirects for a given url shortener Show Sample Output
This is sample output - yours may be different.
```
Location: https://www.shorturl.at/dfIJQ
location: https://youtu.be/dQw4w9WgXcQ
location: https://www.youtube.com/watch?v=dQw4w9WgXcQ&feature=youtu.be
```
4

curl --silent -I -L shorturl.at/dfIJQ | grep -i location

aysadk · 2022-09-04 19:31:46 367
QEMU From Fedora Livecd + Device CD + Device Disk + UEFI + 800x600 forced

Entire command: sudo qemu-system-x86_64 -enable-kvm -cpu host -M q35 -m 2G -smp 4 --bios /usr/share/edk2/ovmf/OVMF_CODE.fd -drive id=cdrom,file=/dev/sr1,if=none,media=cdrom,format=raw,readonly=on -drive id=disk,file=/dev/md126,if=none,format=raw -device virtio-blk-pci,drive=cdrom -device virtio-blk-pci,drive=disk -device VGA,vgamem_mb=64,xres=800,yres=600
This is sample output - yours may be different.
-2

sudo qemu-system-x86_64 ...

pqatsi · 2022-09-02 20:07:02 282
Extend LVM and online resize filesystem

Default volume group in Ubuntu is ubuntu-vg and the logical volume is ubuntu-lv, so the provided command will resize the disk to utilize 100% of the available space. Show Sample Output
This is sample output - yours may be different.
```
  Size of logical volume ubuntu-vg/ubuntu-lv changed from <14.25 GiB (3647 extents) to <28.50 GiB (7295 extents).
  Logical volume ubuntu-vg/ubuntu-lv successfully resized.
resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/ubuntu-vg/ubuntu-lv is mounted on /; on-line resizing required
old_desc_blocks = 2, new_desc_blocks = 4
The filesystem on /dev/ubuntu-vg/ubuntu-lv is now 7470080 (4k) blocks long.
```
0

lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv && resize2fs /dev/ubuntu-vg/ubuntu-lv

sxiii · 2022-08-26 13:02:10 380
Clean or clean pacman and pamac cache
This is sample output - yours may be different.
0

sudo pacman -Scc && pamac clean -b

bugmenot · 2022-08-24 19:10:38 288
Sort disk usage from directories

Sort disk usage from directories in the current directory Show Sample Output
This is sample output - yours may be different.
```
4.0K    ./jenkins_home
8.0K    ./.docker
8.0K    ./.gnupg
8.0K    ./.oracle_jre_usage
12K     ./.local
28K     ./.config
36K     ./.ssh
40K     ./helm
140K    ./.ansible
2.7M    ./x3mboy
15M     ./.cache
15M     ./.kube
43M     ./.krew
3.7G    ./rancher
```
1

du --max-depth=1 -h . | sort -h

x3mboy · 2022-08-23 14:58:57 263

Truncate long strings in columns and use custom header names

Using the --table-truncate ( -T ) option, you can specify the columns you will allow to be truncated. This helps when you have some columns that are unusually long, or a small terminal window. In this example we will print out the /etc/passwd file in columns. We are using a colon as our separator ( -s: ), defining that we want table output ( -t ), defining the column names ( -N ) and allowing the column NAME to be truncated ( -T ). Show Sample Output

column -s: -t -n . -N USERNAME,PASS,UID,GID,NAME,HOMEDIR,SHELL -T NAME /etc/passwd|sed "1,2 i $(printf %80s|tr ' ' '=')"

wuseman1 · 2022-08-22 09:29:14 553

How to sum lines with decimals in awk

Read all lines using decimal marker as point, then add all them up and outputs the result. Show Sample Output
This is sample output - yours may be different.
```
2598.5
```
5

awk '{a+=$0}END{print a}' file

bugmenot · 2022-08-15 23:04:31 271
Output requirements.txt packages pinned to latest version

Given a requirements.txt file with unpinned package names, output the packages pinned to the latest version. Handy to copy/paste back into your requirements.txt when you start a new project. Note that this will download packages but not install them. Show Sample Output
This is sample output - yours may be different.
```
Django==4.1
black==22.6.0
django-filter==22.1
djangorestframework==3.13.1
ipython==8.4.0
requests==2.28.1
```
2

pip install -r requirements.txt --dry-run --no-deps --ignore-installed | tail -n1 | tr ' ' '\n' | tail -n+3 | sed -e "s/$.*$-/\1==/"

katylava · 2022-08-12 20:33:11 279
Find non ascii characters in files in folder
This is sample output - yours may be different.
2

find . -type f -regex '.*\.$cpp\|h$' -exec grep -Pl "[\x80-\xFF]" {} \; | xargs -I % bash -c 'echo "%"; grep --color='auto' -P -n "[\x80-\xFF]" "%"'

swarzynski · 2022-08-02 11:47:59 585
Convert indentation to tabs
This is sample output - yours may be different.
-1

find . -type f -regex '.*\.$cpp\|h$' -exec bash -c 'unexpand -t 4 --first-only "$0" | sponge "$0"' {} \;

swarzynski · 2022-08-02 10:16:47 461
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What's this?

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Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

vi show line numbers

you don't have to spell out numbers, you can just use nu

reset Mageia urpmi media sources to network only

On Mageia (and Mandriva) Linux, this command will clear your existing urpmi configuration and configure it to use only network sources. It can be useful after you have installed from CD/DVD and don't want to continually be prompted to insert CD/DVD each time you install a package. acknowledgement: blino

enumerate with padding

bash2 : for X in $(seq 1 5); do printf "%03g " "$X";done bash3 : for X in {1..5}; do printf "%03g " "$X";done bash4 : echo {001..5}

Convert numbers to SI notation

converts any number on the 'stdin' to SI notation. My version limits to 3 digits of precious (working with 10% resistors).

Get lines count of a list of files

This command gives you the number of lines of every file in the folder and its subfolders matching the search options specified in the find command. It also gives the total amount of lines of these files. The combination of print0 and files0-from options makes the whole command simple and efficient.

List just the executable files (or directories) in current directory

Does an 'ls' on just the files and directories in the current directory with an execute bit turned on. This version will list directories. Just tack on "-type f" to the start of the find to omit listing directories and list only files.

Analyze awk fields

Breaks down and numbers each line and it's fields. This is really useful when you are going to parse something with awk but aren't sure exactly where to start.

sort through source to find most common authors

Remove color codes (special characters) with sed

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