The above loop prints values from 0 to 10. Bash User input Next, we need to prompt the user for a valid directory to loop through. To accept user input, we use the echo command in Bash. For example: #!/bin/bash echo“Enter the directory” readdir cd$dir echo“Nowin/etc” Move Fi...
Before we explore the scenarios, let’s create our Bash file, which will contain our Bash script. Simply navigate to your desired directory in the terminal and create a file using the “nano” or “touch” command. For this guide, I will create a “test.sh” file in my “Documents” ...
Loop Through Files First, we will create atestdirectory and create multiple files inside the directory. Let’s create five files intestdirectory asfile1.txt,file2.txt,file3.txt,file4.txt, andfile5.txt. We created atestfolder usingmkdirand created five files inside it using thetouchcommand....
# Rename the file mv "$file" "$directory/$new_name" ((starting_number++)) done else # Loop through each file in the directory and rename with prefix for file in "$directory"/*; do # Get the current file name current_name=$(basename "$file") # Get the file extension extension="$...
In the linefor file in $(ls); do, the$(ls)part executes the ‘ls’ command then and its output (the list of files in the current directory) is used as input for the loop. The loop will iterate through each file name found in the output. ...
directory="/path/to/jpg/files" # Set the new name prefix new_name_prefix="new_name_" # Loop through each JPG file in the directory for file in "$directory"/*.jpg; do # Get the current file name current_name=$(basename "$file") ...
list of values contains 5 items, the for loop will be executed a total of 5 times, once for each item in the list. The current item from the list will be stored in a variable “varname” each time through the loop. This “varname” can be processed in the body of the for loop....
5. Loop through files and directories in a for loop To loop through files and directories under a specific directory, just cd to that directory, and give * in the for loop as shown below. The following example will loop through all the files and directories under your home directory. ...
You can’t use variables inside theBash Brace Expansion, instead you will need to use afor loopwith aBash Arithmetic Expression. [me@linux ~]$start=1[me@linux ~]$end=5[me@linux ~]$for((i=start;i<=end;i++));doecho$i;done12345 ...
Thels commandlists all files in the current directory. Theforloop iterates through each file. ${file##*.}extracts the file extension by removing everything up to the last dot in the filename. If found, thecasestatement compares theextensionand outputs the file type. ...