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A shell script is a computer program designed to be run by the Unix shell, a command-line interpreter. The various dialects of shell scripts are considered to be scripting languages. A shell usually interprets a single line of input, but we can also create a file containing a number of lines of commands to be interpreted. This file is a program known as a shell script. The program can also contain control structures (if-then, loops). Shell scripts allow a sequence of commands to be executed automatically .

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Comments (26)

  1. Hahaha I see some comments about the Indian accent and oh boy let me tell you, this guy sounds british compared to our tech-support at Volvo Buses. You can actually hear this guy loud and clear – At my job I need to deal with people who speak proper Hindi-English at like 5000 words a minute 😀

  2. using Ubuntu 16.04 when i open a file using gedit it is as you have shown ALWAYS NON-executable! i have to use the chmod whenever i start a file can gedit be made to always make the file executable?

  3. Me: I wanna learn some shell scripting!
    YouTube tutorial: indian accent
    Me: Now I'm in the right place!

  4. are there any command differnece or extra in unix shell script. bcoz in my college syllabus under MAKAUT
    1. Shell programming [6P]: creating a script, making a script executable, shell syntax (variables, conditions, control structures,
    functions, commands).
    2. Process [6P]: starting new process, replacing a process image, duplicating a process image, waiting for a process, zombie process.
    3. Signal [9P]: signal handling, sending signals, signal interface, signal sets.
    4. Semaphore [6P]: programming with semaphores (use functions semctl, semget, semop, set_semvalue,
    del_semvalue, semaphore_p, semaphore_v).
    5. POSIX Threads [9P]: programming with pthread functions(viz. pthread_create, pthread_join, pthread_exit,
    pthread_attr_init, pthread_cancel)
    6. Inter-process communication [9P]: pipes(use functions pipe, popen, pclose), named pipes(FIFOs, accessing FIFO)

    will i get all of this 6 items in ur tutorial?

  5. What is the usage or scope of shell script in IT Industry or GOVT JOBS in INDIA? linux commands are same as Unix commands?? my college have shell scripting on unix not on linus will this be helpful for me?

  6. Thanks for your great efforts in sharing the knowledge.
    I have completed half your shell scripting tutorials your way of teaching is crystal clear.
    Really you made this for absolute beginners. Thanks a lot sir

  7. He sounds clear enough to me. Maybe the people who always complain about the accents just don't have that strong of a grasp on the English language.

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