To loop through directories and files in bash, we use a global pattern named “wild card” which is a standard pattern that matches all files. But we will match only directories by using “/” at the end of our command. After that, we assign each directory the value of the available ...
Some useful BASH for loop examples has been mentioned in this article. Syntax of for loop: # loop through a list for value in list do commands done # loop specified values for value in file1 file2 file3 do commands done # loop through strings resulting from a command for value in $(...
Users must note that the ‘*’ is used to read files in the ‘for loop.’ The functioning of the loop is the simple manner by reading each file or folder through the step of the directory and prints with the output in the terminal with the ‘tab’ space. printf "Pinting the files...
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In this tutorial, I'm going to walk you through the following: The syntax of the while loop Multiple examples of the while loop So let's start with the first one. How to use the while loop in bash Like any other loop, while loop does have a condition statement and the condition is...
Assuming your servers are named in some sort of pattern like,web0,web1,web2,web3, you can have Bash iterate the series of numbers like this: $foriinweb{0..10};doscpsomefile.txt${i}:;done; This will iterate throughweb0,web1,web2,web3, and so forth, executing your command on ea...
varname is any Bash variable name. In this form, the for statement executes the command enclosed in a body, once for each item in the list. The current item from the list will be stored in a variable “varname” each time through the loop. This varname can be processed in the body...
FOR /F - Loop through items in a text file. SETLOCAL - Control the visibility of variables inside a FOR loop. FORFILES - Batch process multiple files. GOTO - Direct a batch program to jump to a labelled line. IF - Conditionally perform a command. Equivalent PowerShell: ForEach-Object -...
We can redirect the content of the file towhile loopusing the Input redirection operator(<). while read LREAD do echo ${LREAD} done < /etc/passwd | head -n 5 Input Redirection You can also store the file name to a variable and pass it through a redirection operator. ...
Loop through result set of mysql in Bash - routineswrap yourmysql mydb ...command with()...