Linux small hints

things I have found usefull even life-saving when working with Linux

Blog Archives

Ubuntu – how to find out if some firewall is

By: admin |
March 8 2016 11:50

iptables +front-end “guarddog”: service iptables status sudo iptables -L – shows active iptables rules dpkg -l | grep iptables – check installed packages ufw (Ubuntu-firewall) […]

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Ubuntu – find info about reboots / uptime

By: admin |
March 8 2016 11:47

uptime shows info about current run – current time, for how long machine runs, number of users, load average (as in top command) last- shows […]

Ubuntu – small tips to increase everyday wor

By: admin |
March 7 2016 12:24

Working with Ubuntu KDE Unity every day makes you think about shortcuts for tasks you do all the time. Here are some tips: moving window […]

Comparisons

By: admin |
October 14 2015 15:07

cmp = byte by byte file comparison diff = line by line file comparison diff3 = compares 3 files sdiff = compares and interactively merges […]

Communication

By: admin |
October 14 2015 15:04

dig – query DNS server part of “dnsutils” package get IP from URL: dig +short urlstring ftp – file transfer scp – copy file to […]

ZIP and UNZIP / tar and untar / gzip and ungzip /

By: admin |
October 14 2015 13:48

tar command examples -NOT compressed archive (verbosed): create a new tar archive: tar cvf archive_name.tar dirname/ extract from an existing tar archive: tar xvf archive_name.tar […]

Program exists / is reachable

By: admin |
October 9 2015 14:25

command -v $program – > if exists returns whole name with path

Packages – rpm, yum, apt

By: admin |
October 7 2015 13:02