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Full Discussion: Bash variable available for use outside loop
Top Forums Shell Programming and Scripting Bash variable available for use outside loop Post 303031106 by wisecracker on Thursday 21st of February 2019 03:21:32 PM
Old 02-21-2019
I don't quite understand what you mean exactly but i assume on program rerun you wish to reuse $p from the previous run.
Try saving it as a source file and calling it at any time. I have used the '/tmp/' directory to store the sourcefile in this demo...

Code:
echo '#!/bin/bash' > /tmp/sourcefile
echo "p=${p}" >> /tmp/sourcefile

And source at anytime in any bash shell:
Code:
source /tmp/sourcefile

Example longhand: OSX 10.14.1, default bash terminal.
Code:
Last login: Thu Feb 21 20:10:56 on ttys000
AMIGA:amiga~> p="/usr/bin/local/"
AMIGA:amiga~> echo '#!/bin/bash' > /tmp/sourcefile
AMIGA:amiga~> echo "p=${p}" >> /tmp/sourcefile
AMIGA:amiga~> exit
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.

[Process completed]

Restart a terminal:
Code:
Last login: Thu Feb 21 20:17:07 on ttys000
AMIGA:amiga~> echo "$p"

AMIGA:amiga~> source /tmp/sourcefile
AMIGA:amiga~> echo "$p"
/usr/bin/local/
AMIGA:amiga~> exit
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.

[Process completed]

If this is not what you want then re-explain...
Hope this helps...
Last edited by wisecracker; 02-21-2019 at 04:31 PM..
This User Gave Thanks to wisecracker For This Post:
cmccabe
 

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LEARN ABOUT REDHAT

unbin

MEGATRON(1)						      General Commands Manual						       MEGATRON(1)

NAME

       megatron, unhex, unbin, unsingle, hqx2bin, single2bin, macbinary - Macintosh file format transformer

SYNOPSIS

       megatron [ sourcefile...  ]

       unbin [ sourcefile...  ]

       unhex [ sourcefile...  ]

       unsingle [ sourcefile...  ]

       hqx2bin [ sourcefile...	]

       single2bin [ sourcefile...  ]

       macbinary [ sourcefile...  ]

DESCRIPTION

       megatron  is  used to transform files from BinHex, MacBinary, AppleSingle, or netatalk style AppleDouble formats into MacBinary or netatalk
       style AppleDouble formats.  The netatalk style AppleDouble format is the file format used by  afpd,  the  netatalk  Apple  Filing  Protocol
       (AppleShare)  server.   BinHex,	MacBinary, and AppleSingle are commonly used formats for transferring Macintosh files between machines via
       email or file transfer protocols.  megatron uses its name to determine what type of tranformation is being asked of it.

       If megatron is called as unhex, unbin, or unsingle, it tries to convert file(s) from BinHex, MacBinary,	or  AppleSingle  into  AppleDouble
       format.	 BinHex is the format most often used to send Macintosh files by e-mail.  Usually these files have an extension of ".hqx".  MacBi-
       nary is the format most often used by terminal emulators "on the fly" when transferring Macintosh files in binary  mode.   MacBinary  files
       often have an extension of ".bin".  Some Macintosh LAN-based email packages use uuencoded AppleSingle format to "attach" or "enclose" files
       in email.  AppleSingle files don't have a standard filename extension.

       If megatron is called as hqx2bin, single2bin, or macbinary, it will try to convert the file(s) from  BinHex,  AppleSingle,  or  AppleDouble
       into  MacBinary.   This last translation may be useful in moving Macintosh files from your afpd server to some other machine when you can't
       copy them from the server using a Macintosh for some reason.

       If megatron is called with any other name, it uses the default translation, namely unhex.

       If no source file is given, or if sourcefile is `-', and if the conversion is from a BinHex or MacBinary  file,	megatron  will	read  from
       standard input.

       The  filename  used to store any output file is the filename that is encoded in the source file.  MacBinary files are created with a ".bin"
       extension.  In the case of conflicts, the old file is overwritten!

SEE ALSO

       afpd(8)

netatalk 1.2							    8 Jan 1992							       MEGATRON(1)
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