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Top Forums UNIX for Dummies Questions & Answers Foreach loop through subdirectories in csh Post 302910948 by bakunin on Tuesday 29th of July 2014 08:12:51 AM
Old 07-29-2014
Quote:
Originally Posted by saleheen
The scripts name is GEN_POSCAR, so if I say like this-
Code:
cd /scratch/scratchdirs/saleheen/Scripts/My-scripts/GEN_POSCAR

won't it say it's not a directory? Or am I understanding something wrong here? :/
If the scripts (short) name is "GEN_POSCAR", then it is a file in directory "/scratch/scratchdirs/saleheen/Scripts/My-scripts". The full name would be "/scratch/scratchdirs/saleheen/Scripts/My-scripts/GEN_POSCAR",

but you were told by MadeInGermany to do this:
Code:
# cd /scratch/scratchdirs/saleheen/Scripts/My-scripts
# ./GEN_POSCAR

As i sense there is some confusion about the directory concept, here it is:

Every file is placed somewhere under the "root"-hierarchy, which is denominated by "/". "/" is the topmost directory on every UNIX- (and UNIX-like) system. Now, every directory can hold two (in fact there are more, i am simplifying here) types of entries: other directories and files. Each of these other directories can also hold directories and files, and so forth. Every directory si separated by the directory "above" by a slash "/".

Therefore, "/scratch/scratchdirs/saleheen/Scripts/My-scripts" means: in the root directory "/", there is a directory "scratch". Inside "/scratch" there is another directory "scratchdirs", hence: "/scratch/scratchdirs". Inside "/scratch/scratchdirs" there is the directory "salaheen" and inside this is "Scripts", asf.. Inside the bottom directory "/scratch/scratchdirs/saleheen/Scripts/My-scripts" is a file called "GEN_POSCAR", which holds your scripts source code.

Think of it like that: you open the topmost box. Inside you find several smaller boxes (subdirectories) and some loose sheets of paper (files). Opening one of the smaller boxes you find again smaller boxes (sub-subdirectories) and other loose sheets of paper. And so on, until a box contains only loose sheets and no other boxes.

I hope this helps.

bakunin
This User Gave Thanks to bakunin For This Post:
 

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ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
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