Write a shell script which deletes all line containing the word unix in the filesn suppiled as argument to this shell script?

Lowell Hodkiewicz asked a question: Write a shell script which deletes all line containing the word unix in the filesn suppiled as argument to this shell script?
Asked By: Lowell Hodkiewicz
Date created: Mon, May 31, 2021 7:33 AM

Content

FAQ

Those who are looking for an answer to the question «Write a shell script which deletes all line containing the word unix in the filesn suppiled as argument to this shell script?» often ask the following questions:

😳 How do you write an argument in a shell script?

Arguments or variables may be passed to a shell script. Simply list the arguments on the command line when running a shell script. In the shell script, $0 is the name of the command run (usually the name of the shell script file); $1 is the first argument, $2 is the second argument, $3 is the third argument, etc...

😳 Write a shell script that counts a number of unique word contained in the alphabetical order line by line?

use python, shell is stupid

😳 How do you write shell scripting in unix?

A shell script is nothing more than a readable and executable ASCII text file. In this file you put all of the commands that you want to execute, in sequence. The name of the file can be anything you like. Any text editor (VI, VIM, pico, etc) can create a shell script file In addition, shell script files have the ability to detect logic, and are programmable. Just think about what tasks you want to perform and their order, and put it into a file, and there you have a shell script.

1 other answer

SS29

Script to delete all lines containing the word 'unix' from

files supplied as arguments

Usage: SS29 file1 file2 file3 ...

if [$# -lt 2] then echo Insufficient arguments exit fi for file do grep -v unix $file>/temp/$file cp /temp/$file $file done

Your Answer

We've handpicked 24 related questions for you, similar to «Write a shell script which deletes all line containing the word unix in the filesn suppiled as argument to this shell script?» so you can surely find the answer!

Can we write java code in shell script?

* We can write java commands like shell script and execute it. * Just write commands in a way that we give in jshell and save it in a file and execute it.

Read more

How do you write a good shell script?

  1. Always Use Comments in Scripts…
  2. Make a Script exit When Fails…
  3. Make a Script exit When Bash Uses Undeclared Variable…
  4. Use Double Quotes to Reference Variables…
  5. Use functions in Scripts.

Read more

How do you write a shell script program?

  1. Create a file using a vi editor(or any other editor). Name script file with extension . sh.
  2. Start the script with #! /bin/sh.
  3. Write some code.
  4. Save the script file as filename.sh.
  5. For executing the script type bash filename.sh.

Read more

How to write a shell script in linux?

  • How to Create/Write a Simple/Sample Linux Shell/Bash Script Choose Text Editor. Shell scripts are written using text editors… Type in Commands and Echo Statements. Start to type in basic commands that you would like the script to run… Make File Executable. Now that the file has been saved, it needs to be made executable… Run the Shell Script… Longer Shell Script…

Read more

How to write comments in bash shell script?

bash function bin bash

Bash comments can only be done as single-line comment using the hash character # . Every line or word starting by the # sign cause all the following content to be ignored by the bash shell. This is the only way to do a bash comment and ensure text or code is absolutely not evaluated in Bash.

Read more

How to write a shell script using bash shell in ubuntu?

  • Steps Launch the Terminal. Launch the vi/vim editor. Type vim ListDir.sh and hit ↵ Enter. Type the following code: #!/bin/bash. Type the code as shown in the figure. Exit vim. Change the access permissions. Run the scrip.

Read more

How do you write a multi line bash script?

If you're writing a multiline command for bash, then you must add a backslash (\) at the end of each line. For multiline comments, you have to use the HereDoc « tag. Bash will ignore everything in here.

Read more

How do you change permissions on a shell script in unix?

Use the 'chmod' command to change permissions on any file. Note: you have to be the owner (or the superuser) to do this.

Read more

How to debug a bash shell script under linux or unix?

  • There are various ways to debug a shell script. You need to pass the -x or -v argument to bash shell to walk through each line in the script. Let us see how to debug a bash script running on Linux and Unix using various methods.

Read more

How do you write a statement in dos using shell script to display a word?

We can not perform Shell Scripting in DOS, we can do Batch programing in DOS..

Read more

Which is the first argument in a bash script?

  • From the above discussion on the positional parameter, we now know that $1 refers to the first argument, which is 13. Using the shift operator with input 1 ( shift 1) causes the indexing to start from the second argument. That is, $1 now refers to the second argument (18).

Read more

Write a shell program in unix which dispay a following pattern 1 01 101 0101 10101?

#!/usr/bin/bash echo 1 01 101 0101 10101

Read more

How do you write a script which lists the 10 shell system variables?

You don't need a shell script to do that. Since you don't say what 10 shell variables you want, you can list them all by using the 'set' command to list all known in-use shell variables in the current session.

Read more

How to write a bash shell script in linux?

  • How to Write Shell Script in Linux/ Unix Shell Scripts are written using text editors. On your Linux system, open a text editor program, open a new file to begin typing a shell script or shell programming, then give the shell permission to execute your shell script and put your script at the location from where the shell can find it.

Read more

How to write a shell script on raspberry pi?

  • To begin, log in to your Raspberry Pi, and navigate to the directory where you want to save the script. Then open the Nano text editor and create a new file named hello-world.sh by entering this at the command prompt: sudo nano hello-world.sh. Now, enter this code into the text editor:

Read more

Shell script in unix to check if a string is a palindrome?

len=0 i=1 echo -n "Enter a String: " read str len=echo $str | wc -c len=expr $len - 1 halfLen=expr $len / 2 while [ $i -le $halfLen ] do c1=echo $str|cut -c$i c2=echo $str|cut -c$len if [ $c1 != $c2 ] ; then echo "string is not palindrome" exit fi i=expr $i + 1 len=expr $len - 1 done echo "String is Palindrome"

Read more

How to pass an argument with a space character in a shell script?

  • But I get this error message instead: How exactly do I pass an argument with a space character to a command in a shell script? This tells the shell to ignore spaces in the arguments; it doesn't turn all arguments into a very long string. Thanks for contributing an answer to Stack Overflow!

Read more

How do you comment a line in a shell script?

A single-line comment starts with hashtag symbol with no white spaces (#) and lasts till the end of the line. If the comment exceeds one line then put a hashtag on the next line and continue the comment. The shell script is commented out prefixing # character for single-line comment.

Read more

How do you comment out a line in shell script?

for multiple line comments add ' (single quote) from where you want to start & add ' (again single quote) at the point where you want to end the comment line.

Read more

How do you print a line on screen shell script?

That would depend on what shell you're using. Most seem to have a command similar to "echo x" which will print x to the terminal.

Read more

What is the first line of a shell script called?

The first line called a hashbang or shebang. It tells Unix that this script should be run through the /bin/bash shell. Second line is just the echo statement, which prints the words after it to the terminal.

Read more

What is command line argument in bash?

  • Bash Command Line Arguments are used to provide input to a bash shell script while executing the script. In bash shell programming you can provide maximum of nine arguments to a shell script.

Read more

How do i write the output of a shell script?

  1. #!/bin/bash.
  2. #Script to write the output into a file.
  3. #Create output file, override if already present.
  4. output=output_file.txt.
  5. echo "<<<List of Files and Folders>>>" | tee -a $output.
  6. #Write data to a file.
  7. ls | tee $output.
  8. echo | tee -a $output.

Read more

How do you write to a file in shell script?

  1. #!/bin/bash.
  2. #Script to write the output into a file.
  3. #Create output file, override if already present.
  4. output=output_file.txt.
  5. echo "<<<List of Files and Folders>>>" | tee -a $output.
  6. #Write data to a file.
  7. ls | tee $output.
  8. echo | tee -a $output.

Read more