Author: Arpit Mandliya

Checking If Variable Is Empty in Bash There are multiple ways to check if a variable is empty or not. Before moving towards those methods, knowing when a variable is called empty is necessary. In Bash, a variable is called empty if: A variable is declared without assigning any value to it. A variable is […]

Using for Loop To convert the entire list into one integer in Python: Create a list having integer-type elements. Declare and initialize a variable with 0; it will be used to hold the final integer value. Use the for loop to iterate over the list items. In each iteration: multiply the variable created in the […]

Print Blank Line in PowerShell We have two string-type messages that we want to print on the PowerShell console, but in between, we also want to have a blank line to increase the readability. For instance, we want to get results as follows: [crayon-68bb2db1361a6110058722/] To do as demonstrated above, we can use different ways. Let’s […]

Using List slicing Use list slicing to get first n elements of List in Python. Here’s an example: [crayon-68bb2db136536329327972/] [crayon-68bb2db13653d590467184/] In the above example, list slicing is used to get a list’s first n elements. As we can see, a list was defined as my_list with 6 elements [10, 20, 30, 40, 50, 60]. And […]

Meaning of the echo $1 in Bash The echo $1 is a bash command; now, those new to Bash can think of it as a famous shell and scripting language in Unix-based operating systems. Using Bash, we can take advantage of multiple features and commands that assist users in automation and system administration tasks. Are […]

Using tr Command Use the tr command to remove the new line from a string. The tr command is used for character translation or deletion. [crayon-68bb2db136b18562260528/] [crayon-68bb2db136b1d720090405/] In the above, we have a string that contains a newline character between Hello and World. The echo command displays the string, including the newline character. The | […]

Using for Loop with seq Command To loop from 1 to 10 in the Bash shell: Use the for keyword to start the for loop. Use i as a loop variable, which is accountable for taking values from 1 to 10. Use the $(seq 1 10) expression, which is a command substitution executing the seq […]

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Running from PowerShell Command-Line To run a PowerShell script(.ps1 file) from a PowerShell command line: Launch the PowerShell as an Administrator and wait for the PS> prompt to appear. Navigate to the directory having your PowerShell script file. Type .\ followed by the ScriptFileName.ps1 and hit Enter to execute the script. [crayon-68bb2db13721f936929216/] [crayon-68bb2db137225408987154/] You must […]