Syntax:
ping [OPTIONS] HOST
Options:
Option | Description |
---|---|
-c |
Number of packets to send |
-i |
Interval between packets |
-t |
Set TTL (Time To Live) |
-q |
Quiet output (summary only) |
Examples:
ping google.com
ping -c 4 8.8.8.8
ping -i 2 example.com
Syntax:
curl [OPTIONS] [URL]
Options:
Option | Description |
---|---|
-O |
Save with original filename |
-o |
Specify output file |
-L |
Follow redirects |
-I |
Show only headers |
-d |
Send POST data |
-X |
Specify HTTP method |
Examples:
curl https://example.com
curl -O https://example.com/file.txt
curl -o saved.txt https://example.com/data.txt
curl -I https://example.com
curl -X POST -d "name=test" https://api.example.com/data
Syntax:
wget [OPTIONS] [URL]
Options:
Option | Description |
---|---|
-O |
Set output filename |
-c |
Continue download |
-q |
Quiet mode |
-r |
Recursive download |
--limit-rate |
Limit download speed |
Examples:
wget https://example.com/file.zip
wget -O custom.zip https://example.com/file.zip
wget -c largefile.iso
wget -r https://example.com/docs/
Syntax:
ssh [OPTIONS] user@host
Options:
Option | Description |
---|---|
-p |
Port number |
-i |
Identity file (private key) |
-v |
Verbose mode for debugging |
Examples:
ssh user@192.168.1.10
ssh -p 2222 admin@example.com
ssh -i ~/.ssh/id_rsa user@server.com
Syntax:
scp [OPTIONS] source destination
Options:
Option | Description |
---|---|
-r |
Copy directories recursively |
-P |
Specify remote SSH port |
-i |
Identity (private key) file |
-v |
Verbose output |
Examples:
scp file.txt user@host:/home/user/
scp -r dir/ user@host:/var/www/
scp -P 2222 backup.sql user@192.168.1.100:/tmp/
Syntax:
rsync [OPTIONS] SOURCE DESTINATION
Options:
Option | Description |
---|---|
-a |
Archive mode (recursive + preserve) |
-v |
Verbose output |
-z |
Compress during transfer |
-r |
Recursive |
--delete |
Delete files not in source |
-e |
Specify remote shell (like SSH) |
Examples:
rsync -avz dir/ user@remote:/backup/
rsync -r file.txt /mnt/usb/
rsync -av --delete local/ remote:/sync/
rsync -e ssh file user@host:/path/