Jan 16, 2014 · Shell scripting: -z and -n options with if Ask Question Asked 11 years, 10 months ago Modified 10 months ago

yes, and as I said, you're free to code your project the way you like. But, next to stating your preference to using braces, you linked to an article titled "Why You Should Put Braces around Your Variables …

Feb 10, 2012 · The shell command and any arguments to that command appear as numbered shell variables: $0 has the string value of the command itself, something like script, ./script, …

See What is the difference between > and >> (especially as it relates to use with the cat program)?, What does “3>&1 1>&2 2>&3” do in a script? and of course, your shell's manual. (There are some …

Jul 5, 2018 · The relevant man page to check for this is that of the shell itself, bash, because -f is functionality that the shell provides, it's a bash built-in. On my system (CentOS 7), the fine man page …

I can read the numbers and operation in with: echo "First number please" read num1 echo "Second number please" read num2 echo "Operation?" read op but then all my attempts to add the numbers …

Mar 27, 2015 · There is no stand-alone read command: instead, it is a shell built-in, and as such is documented in the man page for bash: read [-ers] [-a aname] [-d delim] [-i text] [-n nchars] [-N …

Feb 20, 2011 · When going through one shell script, I saw the term "$?". What is the significance of this term?

Jun 19, 2015 · Explore related questions shell-script scripting ksh See similar questions with these tags.

You can find the definition of -lt and -gt in the documentation of the test command (man test), or in the documentation of bash since test is a built-in command in bash (like in most other shells). -lt and -gt …