regular expression for postflight script

[benfeea1]

I need a regular expression that will delete the last slash “/” in a line, and everything to the left of it.

I want to turn the full path to a package
/Volume/Installer/InstallerPackage.pkg
into just the name of the package
InstallerPackage.pkg

I will be using this in postflight scripts if I want to delete the package reciept.

Unless there is an Installer.app Environmental Positional Variable for the package name, I figured a regex was the way to go.

Here is an example of my postflight script.

#!/bin/bash
# postflight script
# Installer.app Environmental Positional Variables.
# $0 Script path
# $1 Package path
# $2 Default location
# $3 Target volume
# Declare the Enviromental Positional Variables so the can be used in function calls.
ScriptPath=$0
PackagePath=$1
DefaultLocation=$2
TargetVolume=$3
PackageName=${PackagePath”MagicRegEx”}

RemovePackageReceipt () {
rm -rf “${TargetVolume}/Library/Receipts/${PackageName}”
echo removed “${TargetVolume}/Library/Receipts/${PackageName}”
}

RemovePackageReceipt

[larkost]

Assuming that you are not going to have escaped ‘/’ characters in your path:
[code]PackageName=$( /usr/bin/basename “$PackagePath” )[/code] (not tested… just written)

[benfeea1]

larkost,

You are a very wise Marklar. That worked perfectly.

#!/bin/bash
# postflight script
# Installer.app Environmental Positional Variables.
# $0 Script path
# $1 Package path
# $2 Default location
# $3 Target volume
# Declare the Enviromental Positional Variables so the can be used in function calls.
ScriptPath=$0
PackagePath=$1
DefaultLocation=$2
TargetVolume=$3
PackageName=$( /usr/bin/basename “$PackagePath” )

RemovePackageReceipt () {
rm -rf “${TargetVolume}/Library/Receipts/${PackageName}”
echo removed “${TargetVolume}/Library/Receipts/${PackageName}”
}

RemovePackageReceipt

[Author]

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