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A shell script starts with the definition of the interpreter to use. Usually when one says ``shell script'', one means bash script. So a good first line would be #!/bin/bash This says that the program located in the filesystem at /bin/bash should be executed with this script as its input. With a bash script, you can simply start typing a list of commands. Furthermore it is possible to use logic and control structures like if, else, for, while, etc etc. See http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO.html for a good starting guide.
What else can I help you with?
How can you protect zip file with password with the help of UNIX script?
A Unix script is not necessary. The zip utility has the capability of compressing the files with a password.
How do you create dummy file in unix?
using touch command of UNIX. syntax touch <filename> will create dummy regular file.
What is the system file in Unix?
There is no the system file. There are many files necessary to create a working Unix system.
Write a shell script which deletes all line containing the word unix in the filesn suppiled as argument to this shell script?
# 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
Record your login session into a file in UNIX?
Use the 'script' command; it captures everything you are doing and stores it into a file.
What file extensions are used to identify command shell scripts?
For windows, you might use .cmd, .bat as common file extensions. Unix doesn't use file extensions as associations, so no file extension needs to be used in the Unix environment. A shell script in Unix is simply a text file with any name that is readable and executable. However, file extensions are typically used in Unix as a documentation aid that states that the file is a shell script. Common extensions are .sh, .csh, .ksh, .tcsh, .zsh, etc.
How do you create a new file without opening it in UNIX?
cat file name
Unix script that checks each minute and reports on who logs in and who logs out?
You can create a Unix script that checks for user logins and logouts by monitoring the /var/log/auth.log or /var/log/secure file, depending on your Unix distribution. Use the last command to list users who have logged in, and last -x to include system shutdowns and runlevel changes, which indicate logouts. Schedule the script to run every minute using a cron job with the command * * * * * /path/to/your/script.sh. Ensure the script captures the output and reports the findings, perhaps by appending the results to a log file.
What is the procedure of execute a script in shell in ubantu?
For any Unix or Linux based operating system, make the text file readable and executable and then invoke (call) it by the file name, which will execute the script.
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.
How do you create a PHP script?
To create a PHP script all you have to do is create a new file, then save the file as "filename.php". It must have a .php file extension.After that open the file and put in the PHP tags like shown.Then you write your PHP script within those tags and upload to your web space and check it out.
What is a file command used to create or start a new file?
The 'touch' command creates a new empty file in Unix.
