From ddf779a49926a690588eef909d8a87e94d86e563 Mon Sep 17 00:00:00 2001
From: Brandon Rozek <rozekbrandon@gmail.com>
Date: Mon, 7 Sep 2020 21:47:59 -0400
Subject: [PATCH] New Posts

---
 content/blog/bashpartialargparse.md | 58 +++++++++++++++++++++++++++++
 content/blog/splittingfiles.md      | 37 ++++++++++++++++++
 content/blog/xvfb.md                | 22 +++++++++++
 3 files changed, 117 insertions(+)
 create mode 100644 content/blog/bashpartialargparse.md
 create mode 100644 content/blog/splittingfiles.md
 create mode 100644 content/blog/xvfb.md

diff --git a/content/blog/bashpartialargparse.md b/content/blog/bashpartialargparse.md
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+---
+title: "Partial Argument Parse and Passing in Bash"
+date: 2020-09-07T21:33:26-04:00
+draft: false
+tags: []
+---
+
+Let's say we want to augment an existing terminal command (like for example `wget`). We then want to be able to add or edit command line options. The rest of this post provides an example that hopefully you can use in your bash script.
+
+```bash
+#!/bin/bash
+
+# Custom help function
+show_help() {
+  echo "Usage: custom_command [arguments]"
+  echo "    --name <name>"
+  echo "    --flag_example"
+  echo "    <additional arguments to be passed along>"
+  exit 0
+}
+
+# Defaults for our custom flags or parameters.
+name=""
+flag_example=0
+
+# Loop through and take out our custom parameters
+# from the parameter list.
+i=0
+numargs=$#
+while test $i -lt "$numargs"
+do
+  case "$1" in
+    "--help")
+      show_help
+      ;;
+    "--name")
+      shift
+      name=$1
+      ;;
+    "--flag_example")
+      flag_example=1
+      ;;
+    *)
+      set -- "$@" "$1"
+      ;;
+  esac
+  shift
+  i=$((i+1))
+done
+
+# Do something here using our custom parameters
+
+# Pass our non-custom parameters to the application
+wget "$@"
+```
+
+
+
diff --git a/content/blog/splittingfiles.md b/content/blog/splittingfiles.md
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+---
+title: "Splitting Files to Circumvent Size Limits"
+date: 2020-09-07T20:41:25-04:00
+draft: false
+tags: []
+---
+
+Let's say you want to transfer file(s) over to someone and there is a limit the size you can transfer over. Maybe because of the physical medium or the online service you're using. You can make use of the terminal tool `split` in order to get the chunks over there and then use `cat ` to combine it back to one file.
+
+## Create a Single File
+
+Skip to the next section if you only want to transfer a single file.
+
+Otherwise, let's say you have a folder of files named `Documents`. First, let's create a gzipped compressed archive that contains everything.
+
+```bash
+tar -czf documents.tar.gz Documents
+```
+
+## Splitting the File
+
+Next let's split the file into 1 GB parts. 
+
+```bash
+split -b 1GB -d documents.tar.gz PART
+```
+
+Then transfer the files labeled PARTX where X is the part number over....
+
+## Re-combining
+
+Once the files are transfered, we use `cat` to bring the files back together.
+
+```bash
+cat PART* > documents.tar.gz
+```
+
diff --git a/content/blog/xvfb.md b/content/blog/xvfb.md
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+---
+title: "Xvfb"
+date: 2020-09-07T20:49:54-04:00
+draft: false
+tags: []
+---
+
+X Virtual Framebuffer (Xvfb) is a great quick application to run applications that expect a `X11` server, but you don't care to see the visual output.
+
+To install:
+
+```bash
+sudo apt install xvfb
+```
+
+To run:
+
+```bash
+xvfb-run application
+```
+
+For more customization, I hear that it's better to use [xpra with Xdummy](https://xpra.org/trac/wiki/Xdummy). I haven't tried this myself yet, but if you experience issues with the application expecting `randr` or `glx` extensions, give it a shot.
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