Custom Shell

-> A Custom shell written in C language, supporting four internal and 5 external library commands with Multithreaded and Multiprocessor Options.
-> Use of standard C libraries, including Linux system calls such as fork() , exec() family system calls and wait() family of system calls.
-> Use of Linux system thread creation calls such as pthread_create(), pthread_join() , pthread_exit() , system() family system calls and wait() family of system calls.

Internal Commands Supported

• pwd
• cd
• echo

External Commands Supported

• ls
• cat
• date
• rm
• mkdir

Installation

# clone the repo
$> git clone https://github.com/arnavgupta2003/Custom_Shell_1.git

# change the working directory to src
$> cd src

# run the makefile
$> make -f MakeFile
       OR
$> make

Usage

$ [COMMAND] -h
Available commands.
      cd                     cd &t
      pwd                    pwd &t
      echo                   echo &t
      ls                     ls &t
      cat                    cat &t
      date                   date &t
      rm                     rm &t
      mkdir                  mkdir &t

CST_Shell ASH (Version 1.1)

cd optional arguments:
  -h, --help            show this help
  -v, --verbose         display information regarding changes
  -f,                   force changes

pwd optional arguments:
  -h, --help            show this help
  -L, --cwd             print the value of $PWD if it names the current working directory
  -P, --physical        print the physical directory, without any symbolic links

echo optional arguments:
  -h, --help            show this help
  -n,                   do not output the trailing new line
  -v, --verbose         Describe each event as it occurs

ls optional arguments:
  -h, --help            show this help
  -d, --directory       list directories themselves, not their contents
  -a, --all             do not ignore entries starting with .

cat optional arguments:
  -h, --help            show this help
  -E, --show-ends       display $ at end of each line
  -n, --number          number all output lines

date optional arguments:
  -h, --help            show this help
  -t, --show-time       display only time
  -d, --show-date       display only date

rm optional arguments:
  -h, --help            show this help
  -f, --force           ignore nonexistent files and arguments, never prompt
  -v, --verbose          Explain what is being done

mkdir optional arguments:
  -h, --help            show this help
  -p, --parents         no error if existing, make parent directories as needed
  -v, --verbose          Explain what is being done

License

MIT © Arnav Gupta 2022
Original Creator - Arnav Gupta

MIT License

Copyright (c) 2022 Arnav Gupta

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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