Shell Script to Copy file1 to file2

shell script is a computer program designed to be run by the Unix shell, a command-line interpreter. The various dialects of shell scripts are considered to be scripting languages. Typical operations performed by shell scripts include file manipulation, program execution, and printing text. A script that sets up the environment, runs the program, and does any necessary cleanup, logging, etc. is called a wrapper.

In this post, we will write a shell script to copy file1 to file2 that are taken from the input and display the errors, if any.

INPUT:
The first line contains two space-separated file-names: a and b

OUTPUT:
Print “done” if the file is copied successfully, else print “error”

The following is the shell script to add two numbers:

echo enter two files
read f1 f2
if [ -s $f1 ]
then
if [ -r $f1 -a -w $f2 ]
then
cp $f1 $f2
echo done
else
echo no read or write permission
fi
else
echo empty file or file does not exist
fi

OUTPUT:

$ enter two files
$ a b
$ done

Let us know in the comments if you are having any questions regarding this shell script.

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Jazib
Android Developer | Competitive Programmer

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