Working with Linux

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Autoenv – Set a lasting, project-based habitatProjects are different from one another and so are environments. We might be developing anapplication on our local machine with certain environment variables like debug level, API keys, ormemory size. Then we want to deploy the application to a staging or production server, which hasother values for the same environment variables. A tool that comes in handy for loading environmentson the fly is autoenv.To install it we go to the official GitHub page and follow the instructions:https://github.com/kennethreitz/autoenvFirst we will clone the project in our home directory, and then we add the following line to our .zshrcconfig file, so that every time zsh starts, autoenv is loaded by default:source ~/.autoenv/activate.shNow let's create an example workplace with two imaginary projects, project 1 and project 2.We open an environment file for project 1:vim project1/.envLet's now imagine that project 1 uses an environment variable called ENV, which we will set to dev:export ENV=dev
Now let's do the same thing for project 2, but with a different value for ENV; qa:export ENV=qa
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Working with Linux - Quick Hacks fo
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Network - Who's listening?Autoenv -
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Working with Linux - Quick Hacks fo
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Melwyn DsaCover WorkMelwyn Dsa
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www.PacktPub.com
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Why subscribe?Fully searchable acro
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PrefaceOur mission is to save Linux
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What you need for this bookIdeally,
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ConventionsIn this book, you will f
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Customer supportNow that you are th
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PiracyPiracy of copyrighted materia
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Chapter 1. IntroductionThis book is
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Terminator - the ultimate terminalT
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Preferences menuIt's an customizing
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And voila! This is our newly config
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Ctrl + Shift + E for a vertical spl
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Text zoom: Ctrl + + and Ctrl + -
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Guake - not Quake!Terminator works
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I believe you can guess what this d
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We can use Guake in full screen by
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The tool is automatically added to
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For example, we might want to updat
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With ClipIt, you can copy and paste
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Vim is renowned for its exotic keyb
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Press the Insert key again to go to
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productive in the coolest terminal
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instructions for installing the oh-
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Let's create a file, say readme.md.
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You can now see the branch name in
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History navigation: Click on arrow
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To see a list of shortcuts, run the
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joe is the string we are searching
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If we don't know exactly what chara
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To find all the lines that have onl
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This will replace every occurrence
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Pipes and subshells - your shell's
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"df -h": This shows the disk usage
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ps aux: This prints all processes w
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cat lorem.txt| tr " " "\n": Transfo
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imagination and how well you learn
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As you can see, the value test is p
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In our case, we will be selecting f
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esacdoneecho "invalid option"exit 1
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./script.sh --ip wlp3s0We can see t
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This way we can start the script, w
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Shell scripting librariesTo really
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of the current working directory (o
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case ${CMD} inpublicip)print_public
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Supercharging VimLet's start by ope
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Let's choose desert!
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We can do the same thing for xml fi
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Keyboard kung fuNow that we have Vi
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Other handy shortcuts are:G: Go to
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:1,$s/CWD/DIR/g:1,$ - start from li
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This will delete everything from li
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cat lorem.txt | tr " " "\n" | grep
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When Vim splits the screen, it open
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Plugin steroids for VimIn this sect
Page 121 and 122: As we can see, before installing sn
Page 123 and 124: Here we can see all the snippets av
Page 125 and 126: A page describing the different enc
Page 127 and 128: It also has the benefit that it's s
Page 129 and 130: Using heredocs is a common techniqu
Page 131 and 132: Sed - one-liner productivity treasu
Page 133 and 134: If we check the content of the file
Page 135 and 136: As you can see, the text was update
Page 137 and 138: You can run, but you can't hide…
Page 139 and 140: You see here that both readme.md an
Page 141 and 142: You can see here all files that don
Page 143 and 144: Find can also locate files based on
Page 145 and 146: A good folder to search is ~/.local
Page 147 and 148: As we can see, electron has a few e
Page 149 and 150: In order to do this, we combine fin
Page 151 and 152: tmux - virtual consoles, background
Page 153 and 154: For demonstration purposes, we will
Page 155 and 156: This will kill the running session.
Page 157 and 158: You also have the possibility to cr
Page 159 and 160: Ctrl + b &: delete
Page 161 and 162: Network - Who's listening?When work
Page 163 and 164: Other useful information we get fro
Page 165 and 166: You can quickly understand the form
Page 167 and 168: As you can see, there is again the
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Page 171: hostnames and ports. For a deeper u
Page 175 and 176: autoenv: Are you sure you want to a
Page 177 and 178: export environment=devexport versio
Page 179 and 180: Autoenv can really come in handy, a
Page 181 and 182: Let's assume we don't need the file
Page 183 and 184: It will show us a list of options a
Page 185 and 186: Chapter 5. Developers' TreasureIn t
Page 187 and 188: Clicking on the button generates a
Page 189 and 190: You can find the files used in this
Page 191 and 192: The first and most important part o
Page 193 and 194: The format of the output image will
Page 195 and 196: This will create a JPEG image with
Page 197 and 198: Let's try to shrink the large PNG i
Page 200 and 201: Alright, now let's try and do the s
Page 202 and 203: Go with the Git flowGit is by far t
Page 204 and 205: We can see that we are now on the d
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Page 208 and 209: This switches us over to our releas
Page 210 and 211: We see that the only two available
Page 212 and 213: GitFlow also comes with an enhanced
Page 214 and 215: Analyzing the git hooks directory,
Page 216 and 217: Merging Git conflicts with easeNow
Page 218 and 219: After this, we can run the followin
Page 220: Now we can easily see the two files
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In general, most modern IDEs offer
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Now do a rehash and type the follow
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Click on the link provided by ngrok
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JSON jamming in the new ageNowadays
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If we want to grab the request meth
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If we want to use the output as inp
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Say, for example, if we want to cal
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Since that the syntax for accessing
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To skip printing empty bodies, we c
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We can even perform arithmetic oper
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There we can see an example of cons
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This will send gedit to the backgro
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Now we see that the mouse pointer h
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Chapter 6. Terminal ArtAll work and
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To make this recurrent, we can incl
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Now, with our newly learned skills,
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Let your friends be amazed by the c
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IndexAautoenvabout / Autoenv - Set
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Ddesert / Color scheme desertdigabo
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Ffind commandusing / You can run, b
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Iidentify / Shrinking spells and ot
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LlinuxURL, for developers / Are you
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NNERDtreeabout / Plugin steroids fo
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PpathogenURL / Plugin steroids for
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Ssedone-liner productivity / Sed -
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VVimsupercharging / Supercharging V
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Working with Linux

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