Trust me, if you know regex very well you are a UNIX guru. Regex is nothing but a string that is used to describe or match a set of strings, according to certain syntax rules.
Many new user think that learning to use regex is difficult, but if you know the fundas (read as basics) it is actually quite easy. Remember you can use regex not just under UNIX but also under PHP, Perl, VB.NET and many other modern programming languages.
This article offers some good introduction for finding and manipulating text using regex:
Virtually all non-trivial problems require you to filter good data from bad. Discover the many UNIX(R) command line utilities that use regular expressions to discern the relevant from the irrelevant.
=> Speaking UNIX, Part 9: Regular expressions
🐧 Get the latest tutorials on Linux, Open Source & DevOps via:
- RSS feed or Weekly email newsletter
- Share on Twitter • Facebook • 0 comments... add one ↓
| Category | List of Unix and Linux commands |
|---|---|
| File Management | cat |
| Firewall | Alpine Awall • CentOS 8 • OpenSUSE • RHEL 8 • Ubuntu 16.04 • Ubuntu 18.04 • Ubuntu 20.04 |
| Network Utilities | dig • host • ip • nmap |
| OpenVPN | CentOS 7 • CentOS 8 • Debian 10 • Debian 8/9 • Ubuntu 18.04 • Ubuntu 20.04 |
| Package Manager | apk • apt |
| Processes Management | bg • chroot • cron • disown • fg • jobs • killall • kill • pidof • pstree • pwdx • time |
| Searching | grep • whereis • which |
| User Information | groups • id • lastcomm • last • lid/libuser-lid • logname • members • users • whoami • who • w |
| WireGuard VPN | Alpine • CentOS 8 • Debian 10 • Firewall • Ubuntu 20.04 |
