The "Linux Lovers Swarm" program Ape's Chat Records

Share && Communication && openness

You should get it

Statement: OK, our group only 5 people, but there is a word is not very right, a project is the ideal is not 5 people. I am writing the text that.

All of the following sharing is from the 5 program dog sharing, I am only responsible for the record. If there is any similarity, please contact me.

Also, there is no particular piece.

The following shared timeline is a node record.

March 9 that day, Yang pulled us together.

Leo: "One day one Linux" handy data processing tool awk

Yang: 10 errors often made by Python programmers

March 10

South elder brother :"self-cultivation of programmers" series of technical Articles to organize collection

Leo: the Ultimate Shell

Yang :Linux Basic command grep egrep fgrep usage and regular expressions

March 11

Yang

You must have learned the regular expression in linux like grep awk sed find uses regular expressions but did you find that these regular expression rules are different? It made me very sad after two days of study search finally give myself an answer grep basic regular expression used by default The feature of the \{\ is that it is very offensive to use {} to match the number of times. But using grep-E will use the extended regular expression extension regular expression and our previous in Java or Python C linguistics is very consistent with the Ubuntu system using alias Egrep to denote grep-e below refers to the use of the awk command in this unknown talk ubuntu14.GenevaThe default use of awk is Mawk but the basic regular expression used by Mawk is not uniform, but awk has many versions where Gawk uses an extended regular expression, apt-GetInstall gawk When you learn sed before solving sed It's hard to look at it because its regular expression is awkward. The basic regular expression is used but the search can use sed-R so that you can use extended regular expressions find comparisons often use regular expressions to match the find-regex But the default is still the basic regular expression this time to use the-regextype'posix-extended'Represents a regular expression that uses an extension but one thing that's especially important to note is that the find regular match matches the absolute path and the default is in place, which means that the default is added ^$ For an example absolute path/(root directory) under Chenyang.txt If you write find/-regextype'posix-extended'-regex'chen.*'This is not found because the absolute path to the Chenyang.txt is/chenyang.txt chen.* can't match because chen.* default is ^chen.*$ so I can't match this is my summary

Yang in person hand-beating

South elder brother: VPN (for FQ out, we have collected a bunch of VPNs, free of charge) Tengyun VPN3 months 50 1001 years of Psiphon Free

March 12

They say a bunch of things I don't know, Python Django, and Java Sevlet.

Leo: ICI Shell is very useful for checking words online.

March 14

Leo: grep Summary

South elder brother: South elder brother opens a blog

Continuous update ...

The "Linux Lovers Swarm" program Ape's Chat Records