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The problem statement, all variables and given/known data:
Write a shell script that gives a passed file the "755" access permissions. The shell script should:
Change permissions of the file whose name was passed to 755
The shell script should display a message that the named file (name to be displayed inside ") access change was made.
The shell script should output the result of the ls -l command for that file only.
Modify the script above so that it assigns a passed file a set of passed access permissions
Relevant commands, code, scripts, algorithms:
The attempts at a solution (include all code and scripts):
I am just unsure of what this is asking, I think I am making it more complicated than it is. I know how to change permissions using the chmod command but I always have done this from the command line. I also cant get the quoting part correct. i did :
"ls -l */755.*"
echo ""
is this wrong?
Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
Sage College, Albany NY, USA, Leroy, CSI221 Linux for Net. Admin.
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If an executable script called "myscript" was invoked from the command line as
./myscript myfilename 755
we can save the parameters into named environment variables called say filename from $1 and the permissions parameter (755) from $2.
filename="$1"
echo "The first parameter is: ${filename}"
perms="$2"
echo "The second parameter is: ${perms}"
If we want to find out the current directory listing for the file myfile we can extend the script by one line. Any line starting with a hash character (#) a comment line and will be ignored by the shell.
filename="$1"
echo "The first parameter is: ${filename}"
perms="$2"
echo "The second parameter is: ${perms}"
# Directory listing for file called myfile
ls -la "${filename}"
Now we understand script parameters, we can take the saved $2 (now called ${perms} ) and substitute it into a unix chmod command.
Thank you so much, I was just making it harder on myself- I never set variables, so it was coming out terribly messy. I can take it from here- thank you for shining a light for me! I'm a newbie.
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