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Basic commands cd - to navigate between dir mv - to move or rename file cp -copy file pwd - current directory ls - lsit all files ls -a - list hidden files ls -l - list the permissions of file mkdir - make dir touch - create file whoami - display user name cat - edit file
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adding user or group useradd - add user in environment useradd -m - add suer in home dir also groupadd - add new group usermod - to modify the permissions chown - change owership chgrp - change group ownership ssh-keygen = genrate new keys su - to with users
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file permissions chmod - change permissions
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to know about systems systemctl - to manage service on linux like start,stop,restart,reload
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network commands ipcongig - to check all ip address ping - send ICMP requests dig - Dns lookups in nslookups