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Top Forums Shell Programming and Scripting Initialize file name bash shell - Linux Post 303026637 by Geneanalyst on Friday 30th of November 2018 10:22:36 PM
Old 11-30-2018
Initialize file name bash shell - Linux

I am trying to initialize a file name in bash but not having much luck. For example, one of my bash scripts outputs a file named "FILE_1000G.vcf". I would like to rename FILE to match with the user's name. This is my code:


Code:
set -e
echo "Please enter your filename:"
read filename
rename 's/FILE/$filename/' *

The script prompts the user for their name. Say the user inputs John. The desired output woud be John_1000G.vcf


I keep getting the following error:


Global symbol "$filename" requires explicit package name (did you forget to declare "my $filename"?) at (user-supplied code).

Last edited by Geneanalyst; 12-01-2018 at 12:54 AM..
 

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script(1)							   User Commands							 script(1)

NAME
script - make record of a terminal session SYNOPSIS
script [-a] [filename] DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the record is saved in the file typescript. See WARNINGS. The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends when the forked shell exits or when Control-d is typed. OPTIONS
The following option is supported: -a Appends the session record to filename, rather than overwriting it. NOTES
script places everything that appears on the screen in filename, including prompts. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a privileged user, that is, root. Be sure that typescript is not a link before running script. SunOS 5.11 30 Jan 2004 script(1)
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