Bash to trim folder and files within a path that share a common file extension Post: 303032427

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Top Forums Shell Programming and Scripting Bash to trim folder and files within a path that share a common file extension Post 303032427 by Don Cragun on Sunday 17th of March 2019 01:59:58 PM

03-17-2019

Registered User

Hi Peasant,
Here is a slightly modified version of your script that just uses options and variable expansions defined by the POSIX standards. But, of course, it still depends on us knowing the pathname of a shell that provides those standard variable expansions. (Note that find isn't needed for this; we can get what we need just using shell pathname expansions.)

Code:

#!/bin/bash
set -xv
# we are running this from ROOTDIR, or abort.
ROOTDIR=/home/cmccabe/rename
cd $ROOTDIR || exit 1
# matching name "R_2019*" to operate on desired directory names, expand this to be precise.

for RDIR in R_2019*/
do
	TRIMSTR=${RDIR%%-v5.6*}
	for FLN in $RDIR*.bam	# Note that RDIR contains a trailing /.
	do
		FLNSUB=${FLN%_R_2019_*}
		mv "${FLN}" "$FLNSUB.bam"
		# Use the fact that .bam and .bam.bai files are paired.
		mv "${FLN}.bai" "$FLNSUB.bam.bai"
	done
	# Now we shall rename the folder, after files inside have been renamed.
	mv "$RDIR" "${TRIMSTR}"
done

Hi cmccabe,
If Peasant's script (modified as suggested in post #5 worked for you, the script above should also work and should even run a little bit faster since it doesn't need to invoke find to get the job done.

I hope this helps,
Don

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rmf

rmf(1)							      General Commands Manual							    rmf(1)

NAME

       rmf - remove folder (only available within the message handling system, mh)

SYNOPSIS

       rmf [+folder] [-help] [-[no]interactive]

OPTIONS

       Prints  a  list of the valid options to this command.  Asks for confirmation before deleting a folder. By default, rmf deletes a folder and
       its messages without asking for confirmation.  If you specify the -interactive option, rmf asks if you are sure before deleting the folder.
       You are advised to use this option, since when rmf deletes a folder its contents are lost irretrievably.

DESCRIPTION

       The  rmf  command  removes all of the messages within the current folder, and then removes the folder itself. If there are any files within
       the folder which are not part of MH, they are not removed, and an error message is displayed.

       You can specify a folder other than the current folder by using the +folder argument. If you do not specify a folder, and rmf  cannot  find
       the current folder,rmf asks you whether you want to delete +inbox instead.

       If the current folder is removed, it makes +inbox current.

       Note that the rmf command irreversibly deletes messages that do not have other links, so use it with caution.

       If  the	folder	being removed is a sub-folder, the parent folder becomes the new current folder, and rmf tells you that this has happened.
       This provides an easy mechanism for selecting a set of messages, operating on the list, then removing the list and returning to the current
       folder from which the list was extracted.

       Using  rmf  to  delete a read-only folder deletes the private sequence and current message information from the file, without affecting the
       folder itself. If you have sub-folders within a folder, you must delete all the sub-folders before you can delete the folder itself.

PROFILE COMPONENTS

       Path: To determine the user's Mail directory

EXAMPLES

       This example shows how rmf asks for confirmation when the -interactive option is used: % rmf -interactive +test Remove folder "test"? y

FILES

       The user profile.

SEE ALSO

       rmm(1)

																	    rmf(1)