These arguments are specific with the shell script on terminal during the run time. The while loop walks through the optstring, which contains the flags that are used to pass arguments, and assigns the argument value provided for that flag to the variable ⦠The value is subject to tilde expansion, parameter expansion, ⦠Create a bash file named âfor_list1.shâ and add the following script. Use one of followings examples. String in double quote: echo -e "This is First Line \nThis is Second Line" String in single quote: echo -e 'This is First Line ⦠The following character sequences shall be recognized on XSI-conformant systems within any of the arguments: \a - Write an
. Each variable passed to a shell script at command line are stored in corresponding shell variables including the shell script ⦠I have a text file which looks like below: abcd efgh ijkl (blank space) I need to remove only the last (blank space) from the file. But then the \x sequences would also be expanded in the arguments to contactenate, and echo also adds an extra space between each argument and an extra newline character in the end, none of which is asked for here. To have it newline terminated, just add $'\n' to the list of chars to print: $ printf "%c" {a..z} $'\n' $'\n' is bash idiomatic way to represent a newline character. Bash uses the value formed by expanding the rest of parameter as the new parameter; this is then expanded and that value is used in the rest of the expansion, rather than the expansion of the original parameter. Newline in Echo: When to use -n, when to use \c Fortunately, this is becoming less of a problem, but it is worth being aware of, particularly if you are writing scripts for older Unix systems. Hi all.. For loop will split the string into words and print each word by adding a newline. A number of style guides require or disallow line breaks between arguments of a function call. This is a while loop that uses the getopts function and a so-called optstringâin this case u:d:p:f:âto iterate through the arguments. read reads a single line from standard input, or from the file descriptor fd if the -u option is used (see -u, below).. By default, read considers a newline character as the end of a line, but this can be changed using the -d option. \b - Write a . \c - Suppress the that otherwise follows the final argument in the output. The syntax ⦠Command Line Arguments in Shell Script. When you use the echo statement, a newline is added at the end of the command. \f - Write a