From e353768077fd3cda495c36f6e9f819935eea60a9 Mon Sep 17 00:00:00 2001
From: Chu Thanh Hung <thanhhungchu95@gmail.com>
Date: Tue, 25 Jul 2017 19:38:53 +0700
Subject: [PATCH] Homework-Linux-Essential-1-Group-4

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+# Framgia Tranning Workshop - Linux Essential 1
+## Homework answer (Group 4)
+
+### Homework 1
+- Alternative `rpm` command for `dpkg` command.
+  - `dpkg -l` -> `rpm -qa`
+  - `dpkg -l {package_name}`: `rpm -qap {package_name}`
+  - `dpkg -L {package_name}` -> `rpm -ql {package_name}`
+  - `dpkg -i package.deb` -> `rpm -i package.rpm`
+  - `dpkg -r {package_name}`: Not found
+  - `dpkg -P {package_name}` -> `rpm -e {package_name}`
+  - `dpkg -c {package.deb}` -> `rpm -qpl {package.rpm}`
+  - `dpkg -p {package_name}`: Not found
+  - `dpkg -s {package_name}` -> `rpm -qi {package_name}`
+  - `dpkg -S {/path/to/file}` -> `rpm -qf {/path/to/file}`
+  - `dpkg --get-selections`: Not found
+- Alternative `yum` command for `apt` command.
+  - `apt install {package_name}` -> `yum install {package_name}`
+  - `apt search {package_name}` -> `yum search {package_name}`
+  - `apt remove {package_name}`: Not found
+  - `apt purge {package_name}` -> `yum remove {package_name}`
+  - `apt policy`: Not found
+  - `apt list` -> `yum list`
+    - Option: installed (`yum`), --installed (`apt`)
+    - Option: available (`yum`), --all-versions (`apt`)
+    - Option: --upgradeable (`apt`)
+  - `apt update`: Nothing alternative but yum refresh each time it's use
+  - `apt upgrade` -> `yum update`
+  - `apt autoremove`: Not found
+  - `add-apt repository {repository_name}`: Not found
+
+
+### Homework 2
+1. Convert to `deb` package and install: `alien --to-deb --install bless.rpm`
+2. First run `alien --to-deb bless.rpm` to convert then `sudo dpkg -i bless.deb` to install
+
+### Homework 3
+```bash
+alias l5lm='ls -lt | sed -ne 2,6p' 
+```
+
+### Homework 4
+```bash
+function get_ubuntu_code_name() {
+  cat /etc/lsb-release | grep "CODENAME" | awk -F "=" '{print $2}'
+}
+
+PS1='{$(get_ubuntu_code_name)} \u@\h:\w\$ '
+```
+
+### Homework 5
+Ease way:
+```bash
+alias kill_all='killall -e'
+```
+or use `ps` and `kill` command
+```bash
+function kill_all {
+  if [ ! $1  ]; then
+    echo "Need a command or program name"
+  else
+    pids=$(ps -aux | grep $1 | grep -v grep | awk '{print $2}')
+    if [ $pids  ]; then
+      kill -9 $pids
+    fi
+  fi
+
+}
+```
+
+### Homework 6
+```bash
+alias gplo='git pull origin $(git branch | sed -e "/^[^*]/d" -e "s/* \(.*\)/\1/")'
+```