Apa perbedaan antara grep -v dan grep -i?

-v membalik kecocokan (menampilkan baris yang TIDAK mengandung pola), sedangkan -i membuat pencarian tidak peka huruf besar/kecil. Bisa dikombinasikan: grep -vi 'error' log.txt menampilkan baris tanpa 'error' tanpa memedulikan huruf besar/kecil.

Bagaimana menemukan file yang dimodifikasi dalam 24 jam terakhir?

Gunakan find dengan -mtime: find /path -mtime -1 menemukan file yang dimodifikasi dalam 24 jam terakhir. -mtime -7 untuk seminggu terakhir. Tanda minus berarti 'kurang dari N hari lalu'.

Apa perbedaan antara > dan >> untuk mengalihkan output?

> menimpa file dengan konten baru (membuat jika tidak ada), >> menambahkan ke akhir file. Contoh: echo 'baris' > file.txt mengganti file, echo 'baris' >> file.txt menambahkan baris.

Bagaimana menjalankan perintah di latar belakang dan tetap berjalan setelah logout?

Gunakan nohup dengan &: nohup python server.py > output.log 2>&1 &. nohup mencegah proses dihentikan saat logout, > output.log 2>&1 mengalihkan stdout dan stderr ke file log.

Apa perbedaan antara kill dan pkill?

kill memerlukan PID: kill -9 1234. pkill mencocokkan berdasarkan nama proses: pkill nginx mematikan semua proses nginx. pkill -f mencocokkan terhadap baris perintah lengkap.

Linux Commands Reference

Referensi perintah CLI Linux yang dapat dicari dengan kategori, contoh, dan copy satu-klik.

File & Directory

Perintah	Sintaksis	Deskripsi	Contoh
ls	ls [options] [path]	List directory contents	ls -la /home
cd	cd [dir]	Change directory	cd /var/log
pwd	pwd	Print working directory	pwd
mkdir	mkdir [-p] dir	Create directory (use -p for nested)	mkdir -p a/b/c
rm	rm [-rf] path	Remove files/directories	rm -rf old_dir
cp	cp [-r] src dst	Copy files/directories	cp -r src/ dst/
mv	mv src dst	Move or rename files	mv old.txt new.txt
find	find path -name pattern	Find files by name/attribute	find . -name '*.log'
ln	ln [-s] src link	Create hard/soft link	ln -s /opt/app app
chmod	chmod mode file	Change file permissions	chmod 755 script.sh
chown	chown user:group file	Change file ownership	chown www-data:www-data index.html

Text Processing

Perintah	Sintaksis	Deskripsi	Contoh
cat	cat [file]	Concatenate and print file content	cat /etc/hosts
grep	grep [options] pattern file	Search for patterns in files	grep -rn 'error' /var/log
sed	sed 's/old/new/g' file	Stream editor — find and replace	sed -i 's/foo/bar/g' config.txt
awk	awk '{print $1}' file	Pattern scanning and processing	awk -F: '{print $1}' /etc/passwd
sort	sort [options] file	Sort lines in a file	sort -k2 -n data.txt
uniq	uniq [options] file	Remove duplicate lines	sort file \| uniq -c
wc	wc [-l\|-w\|-c] file	Word, line, and char count	wc -l access.log
head	head [-n N] file	Print first N lines	head -20 app.log
tail	tail [-n N] [-f] file	Print last N lines; -f to follow	tail -f /var/log/syslog
cut	cut -d'sep' -f n file	Extract fields from lines	cut -d',' -f1 data.csv

Process Management

Perintah	Sintaksis	Deskripsi	Contoh
ps	ps [aux]	List running processes	ps aux \| grep nginx
top	top	Interactive process viewer	top
htop	htop	Enhanced interactive process viewer	htop
kill	kill [-9] PID	Send signal to process (9=force kill)	kill -9 1234
pkill	pkill name	Kill processes by name	pkill -f gunicorn
jobs	jobs	List background jobs in current shell	jobs -l
bg	bg [%n]	Resume job in background	bg %1
fg	fg [%n]	Bring job to foreground	fg %1
nohup	nohup cmd &	Run command immune to hangups	nohup python server.py &
systemctl	systemctl [start\|stop\|status] svc	Manage systemd services	systemctl restart nginx

Networking

Perintah	Sintaksis	Deskripsi	Contoh
ping	ping [-c n] host	Send ICMP echo requests	ping -c 4 google.com
curl	curl [options] url	Transfer data from/to server	curl -I https://example.com
wget	wget url	Download files from web	wget https://example.com/file.tar.gz
ssh	ssh user@host	Secure remote shell login	ssh user@192.168.1.10
scp	scp src user@host:dst	Secure copy over SSH	scp file.txt user@host:/tmp/
rsync	rsync -avz src dst	Sync files locally or over SSH	rsync -avz src/ user@host:/backup/
netstat	netstat -tuln	List network connections/ports	netstat -tuln \| grep :80
ss	ss -tuln	Socket statistics (modern netstat)	ss -tlnp
ip	ip addr / ip route	Manage network interfaces/routes	ip addr show eth0
dig	dig [type] domain	DNS lookup	dig MX example.com

Archiving

Perintah	Sintaksis	Deskripsi	Contoh
tar	tar [-czf\|-xzf] archive files	Create/extract tar archives	tar -czf backup.tar.gz /data
zip	zip archive files	Create ZIP archive	zip -r site.zip public/
unzip	unzip archive	Extract ZIP archive	unzip archive.zip -d output/
gzip	gzip file	Compress file with gzip	gzip large.log
gunzip	gunzip file.gz	Decompress gzip file	gunzip large.log.gz

Disk & Memory

Perintah	Sintaksis	Deskripsi	Contoh
df	df -h	Disk space usage of filesystems	df -h /
du	du -sh path	Disk usage of directory	du -sh /var/log
free	free -h	Show free and used memory	free -h
lsblk	lsblk	List block devices	lsblk -f
mount	mount dev mountpoint	Mount filesystem	mount /dev/sdb1 /mnt/data

Tentang alat ini

Referensi Perintah Linux adalah database yang dapat dicari secara komprehensif untuk alat dan utilitas baris perintah sistem mirip Unix. Baik Anda seorang administrator sistem, insinyur DevOps, atau pengembang yang sering bekerja di terminal, alat ini memberikan akses instan ke sintaks perintah, opsi, dan contoh praktis tanpa meninggalkan browser Anda.

Cukup cari perintah berdasarkan nama atau jelajahi kategori seperti manajemen file, administrasi sistem, jaringan, dan alat pengembangan. Setiap entri menampilkan sintaks perintah, flag dan opsi umum, contoh penggunaan praktis, dan deskripsi tentang apa yang dilakukan setiap parameter. Fitur salin sekali klik memungkinkan Anda menyalin secara instan perintah atau contoh apa pun ke papan klip untuk penggunaan langsung di terminal Anda.

Pertanyaan yang Sering Diajukan

Implementasi Kode

import subprocess
import os

# Run a shell command and capture output
result = subprocess.run(
    ["ls", "-la", "/home"],
    capture_output=True,
    text=True
)
print(result.stdout)

# Search for files (equivalent to find)
import pathlib
# Find all .log files modified in last 24h
import time
now = time.time()
for path in pathlib.Path("/var/log").rglob("*.log"):
    if now - path.stat().st_mtime < 86400:
        print(path)

# Grep equivalent
import re
with open("/etc/hosts") as f:
    for line in f:
        if re.search(r"127\.\d+\.\d+\.\d+", line):
            print(line.strip())

# Process management
import psutil
for proc in psutil.process_iter(['pid', 'name', 'cpu_percent']):
    try:
        if proc.info['cpu_percent'] > 10:
            print(f"PID {proc.info['pid']}: {proc.info['name']}")
    except psutil.NoSuchProcess:
        pass

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