https://github.com/smf8/shell-script-learnings

Exercises on the path of learning shell scripting
https://github.com/smf8/shell-script-learnings

bash bash-script linux shell-script

Last synced: 2 months ago
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Exercises on the path of learning shell scripting

• Host: GitHub
• URL: https://github.com/smf8/shell-script-learnings
• Owner: smf8
• License: mit
• Created: 2019-10-25T10:12:56.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2019-11-28T12:55:55.000Z (over 6 years ago)
• Last Synced: 2025-03-24T08:49:22.830Z (over 1 year ago)
• Topics: bash, bash-script, linux, shell-script
• Language: Shell
• Homepage:
• Size: 6.84 KB
• Stars: 4
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# shell-script-learnings

Just the things used for practicing shell scripting

- #### add-local-user

  This script reads "Username" "Password" and "Real name" from standard input and creates a local user with it.

  commands used in this script are as listed: 

  - `read` to read from stdin

  - `if else` for condition checking

  - `passwd && chpasswd` for changing and setting the user password

  - `useradd` for adding use

- #### lftp & mountftp

  These scripts are my solutions for keeping a folder synced with another folder inside an ftp server. **`lftp.sh`** uses lftp command and must be used inside a crontab. **mountftp** uses curlftpfs to mount a folder in users Desktop

  commands used in this script are as listed

  - `read` to read from stdin

  - `id` command to retrieve user's id and gid

  - saving output of a command in a variable

  - `chown`

  - Detecting the path of the script

  - Checking for file existence 

  - `read` from a file and save it to an array

  - saving a text inside a file with output redirection

  - redirecting stderr

- **add-user-auto-password**

  This script is the 2nd version of user creation scripts. In this script, we get username and comments as command line arguments and provide user with a default generated random password.

  commands used in this script are as listed:

  - `${@}, ${#}, ${NUM}` variables where used for working with positional parameters

  - `date` command for a part of the password

  - `${RANDOM}` for making the password psudo-random

  - `md5sum` for generating a hashed string