‘banana’, and ‘cherry’. The ‘for’ loop then iterates over each element in the array. For each iteration, the current element’s value is stored in thefruitvariable, which we then use in theechocommand to
After declaring an empty arrayArr, the script stores the output of thepwdcommand into a variable namedcommand_outputusingcommand_output=$(pwd). Using awhileloop, it reads each line fromcommand_outputand appends it as an element to theArrarray. Finally, it displays all elements stored in the...
Bash scriptsare programs that help automate tasks. Scripts store commands that often go together, such as updates and upgrades, to accomplish certain tasks automatically. After creating such programs, there are various ways to run the file and execute the commands through the command line or termin...
Line 7states a condition check using anifstatement. When the variableiequals9, the program proceeds tolines 9-11. In all other cases, the code jumps toline 13. Lines 9-11print a message to the console, incrementi, and thecontinuestatement resumes the loop atline 5. Lines 13 and 14print...
The number of supported hardware events can be found in the Technical Reference Manual (TRM) of each CPU. There is also a dedicated counter for CPU clock cycles which does not occupy any of the 4-8 event slots. Last, the PMU supports software increment counters which can be used to ...
for((initialization;condition;increment/decrement))doShell command[s]done Example: Assume we want to write a script that may help us print a table of any user-provided number. We can do that using the following code. #!/bin/bashecho"Enter a Number: "readnumberfor((j=1;j<=10;j++))...
bash$ echo a{d,c,b}e ade ace abe A sequence expression takes the form: {x..y[..incr]} wherexandyare either integers or single characters, andincr, an optional increment, is an integer. When integers are supplied, the expression expands to each number between x and y, inclusive. Supp...
Codecs can be either constant bitrate (CBR) or variable bitrate (VBR). In a constant bitrate codec, the same number of input bytes always turns into the same number of output bytes. It makes it easy to navigate through the encoded file as every compressed block is the same number of ...
bash$ echo a{d,c,b}e ade ace abe A sequence expression takes the form: {x..y[..incr]} where x and y are either integers or single characters, and incr, an optional increment, is an integer. When integers are supplied, the expression expands to each number between x and y, inclus...
A counter variable is used in the script to print the argument number with the argument value.#!/bin/bash #Initialize a counter counter=1; #Iterate the read argument values for val in "$@" do #Print each argument value echo "Argument $counter: $val"; #Increment the counter ((counter...