리눅스마스터 2급
리눅스마스터 2급 🤖 [예시문제] (2026-08-15)
- /etc
- /var
- /bin
- /home
- `useradd -g webgroup testuser`
- `useradd -G webgroup testuser`
- `adduser --group webgroup testuser`
- `useradd -a webgroup testuser`
- `chmod 754 example.txt`
- `chmod u=rwx,g=rx,o=r example.txt`
- `chmod u+rwx,g+rx,o+r example.txt`
- `chmod a=rwx,g=rx,o=r example.txt`
- `ps -ef`
- `top`
- `kill -9 PID`
- `jobs`
- `grep -i "error" /var/log/syslog`
- `grep -v "error" /var/log/syslog`
- `grep -l "error" /var/log/syslog`
- `grep -n "error" /var/log/syslog`
- `apt install apache2` -> `apt autoremove`
- `yum install apache2` -> `yum autoremove`
- `dpkg -i apache2` -> `dpkg -r`
- `apt-get install apache2` -> `apt-get clean`
- `$HOME`, `env`
- `$PATH`, `set`
- `$USER`, `printenv`
- `$PWD`, `export`
- `tar -czvf archive.tar.gz report.txt data/`
- `tar -xzvf archive.tar.gz report.txt data/`
- `gzip report.txt data/ > archive.tar.gz`
- `tar -cvf archive.tar.gz report.txt data/ | gzip`