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Top Forums Shell Programming and Scripting Change directory within a bash shell script Post 303028365 by HikingLife on Saturday 5th of January 2019 02:38:41 PM
Old 01-05-2019
Change directory within a bash shell script

Hi,

I have been trying to execute the below command by changing directory and then copying contents of one directory to another by doing some file name manipulations in between. However this isnt working since as soon as the statement completes it goes back to the original folder. Can someone help in telling me how to change a directory in a script so I can execute subsequent steps within it using and modifying a variable through the steps.

This works fine from command line, however gives bad substitution error from the script because of the issue explained above
Code:
for file in /ABC/DEF/*.done; do file="${file%.*}"; file="${file##*.}"; cp "${file:0:31}"*.* /ABC/EDG/; done

Basically check for all files with name like CAT_TURNAROUND_201811120_075221_3.done in the folder ABC/DEF/*.done, then get all the files starting with just this part CAT_TURNAROUND_201811120_075221from this directory/ABC/DEF/ copied to /ABC/EDG/

Will really appreciate a solution. I have been trying to figure this out and checked various forums and tried alias, function etc. But it isn't working.




Moderator's Comments:
Mod Comment Please use CODE tags as required by forum rules!

Last edited by HikingLife; 01-05-2019 at 10:03 PM.. Reason: Correcting typos and fixing the sample file name
 

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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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