cat
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What is cat?
cat is a widely used command-line utility in UNIX and UNIX-like systems. It stands for "concatenate" which, as the name suggests, can be used to concatenate files, display file contents, or combine files. In the context of incident response and discovery tools, cat plays an essential role in quickly accessing and assessing the contents of various files that inform on security incidents and help users understand system data as well as potential threats.
Free resources to learn cat
- ArticleCat Command in Linux
- ArticleLinux cat command
- VideoThe cat command
More in stage 5: Cloud Skills and Knowledge
- Cloud Skills and Knowledge
- ISO
- RMF
- NIST
- CIS
- CSF
- LOLBAS
- GTFOBINS
- WADCOMS
- dig
- nmap
- ping
- arp
- dd
- Salting
- Hashing
- Key Exchange
- Phishing
- Whishing
- Whaling
- tail
- hping
- head
- grep
- nslookup
- Private vs Public Keys
- Smishing
- Spam vs Spim
- tracert
- winhex
- autopsy
- ipconfig
- PKI
- Obfuscation
- Shoulder Surfing
- Tailgating
- curl
- wireshark
- memdump
- Dumpster Diving
- Diamond Model
- Kill Chain
- Zero day
- FTK Imager
- ATT&CK
- Social Engineering
- Reconnaissance
- Impersonation
- ParrotOS
- Kali Linux
- Watering Hole Attack
- Drive by Attack
- SIEM
- SOAR
- Typo Squatting
- Brute Force vs Password Spray
- Event Logs
- syslogs
- netflow
- FTP vs SFTP
- SSL vs TLS
- IPSEC
- Packet Captures
- Firewall Logs
- DNSSEC
- LDAPS
- SRTP
- S/MIME
- DoS vs DDoS
- MITM
- CSRF
- Spoofing
- SQL Injection
- XSS
- MAC-based
- NAC-based
- Antivirus
- Antimalware
- EDR
- DLP
- Evil Twin
- VLAN Hopping
- Port Blocking
- Group Policy
- Firewall & Nextgen Firewall
- HIPS
- NIDS
- DNS Poisoning
- Sinkholes
- ACLs
- Patching
- NIPS
- Host Based Firewall
- Sandboxing
- Deauth Attack
- Jump Server
- Endpoint Security
- EAP vs PEAP
- WPS
- ACL
- Replay Attack
- WPA vs WPA2 vs WPA3 vs WEP
- Rogue Access Point
- VirusTotal
- urlscan
- any.run
- Preparation
- Identification
- Containment
- Buffer Overflow
- Joe Sandbox
- urlvoid
- WHOIS
- Eradication
- Recovery
- Lessons Learned
- Memory Leak
- Stakeholders
- HR
- Legal
- Pass the Hash
- Compliance
- Management
- Zero Day
- Known vs Unknown
- APT
- Directory Traversal
cat: common questions
Can I learn cat in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain cat in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this cat tutorial for beginners?
It is lesson 160 of 301 in the free Cyber Security roadmap, in stage 5, Cloud Skills and Knowledge. If you are new to Cyber Security, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.