"if" is obvious.
"[" means the same as the command "test" as in here:-
Code:
Last login: Sat Feb 8 15:21:40 on ttys000
AMIGA:barrywalker~> drawer="/Users/barrywalker/Desktop/Code"
AMIGA:barrywalker~> if test -d "$drawer"
> then
> echo "Yup $drawer does exist..."
> fi
Yup /Users/barrywalker/Desktop/Code does exist...
AMIGA:barrywalker~> _
And "-d" is to denote that a directory/drawer/folder is the thing to look for.
"$drawer" could be any absolute or relative path.
The braces "{}" in my first reply are not doing anything in my original case but can
be used for special expansion conditions. (Added for fullness.)
And also I forgot, "]" ends that particular test proceedure...
I will let you research on the curly braces... ;o)
Last edited by wisecracker; 02-08-2014 at 11:55 AM..
Reason: Added the "forgot" bit...
This User Gave Thanks to wisecracker For This Post:
Hi all,
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LEARN ABOUT FREEBSD
mkdir
MKDIR(1) BSD General Commands Manual MKDIR(1)NAME
mkdir -- make directories
SYNOPSIS
mkdir [-pv] [-m mode] directory_name ...
DESCRIPTION
The mkdir utility creates the directories named as operands, in the order specified, using mode ``rwxrwxrwx'' (0777) as modified by the cur-
rent umask(2).
The options are as follows:
-m mode Set the file permission bits of the final created directory to the specified mode. The mode argument can be in any of the formats
specified to the chmod(1) command. If a symbolic mode is specified, the operation characters '+' and '-' are interpreted relative
to an initial mode of ``a=rwx''.
-p Create intermediate directories as required. If this option is not specified, the full path prefix of each operand must already
exist. On the other hand, with this option specified, no error will be reported if a directory given as an operand already exists.
Intermediate directories are created with permission bits of ``rwxrwxrwx'' (0777) as modified by the current umask, plus write and
search permission for the owner.
-v Be verbose when creating directories, listing them as they are created.
The user must have write permission in the parent directory.
EXIT STATUS
The mkdir utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
Create a directory named foobar:
$ mkdir foobar
Create a directory named foobar and set its file mode to 700:
$ mkdir -m 700 foobar
Create a directory named cow/horse/monkey, creating any non-existent intermediate directories as necessary:
$ mkdir -p cow/horse/monkey
COMPATIBILITY
The -v option is non-standard and its use in scripts is not recommended.
SEE ALSO rmdir(1)STANDARDS
The mkdir utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
HISTORY
A mkdir command appeared in Version 1 AT&T UNIX.
BSD March 15, 2013 BSD