Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: assingn a variable a filename and then reading it in
Top Forums UNIX for Dummies Questions & Answers assingn a variable a filename and then reading it in Post 302337123 by Corona688 on Thursday 23rd of July 2009 12:33:32 PM
Old 07-23-2009
Leave off the () when calling the function, its only meant for when you're declaring it, and is optional even then.

read does not work that way. read NAME does not read from the file NAME, it reads into the variable $NAME. It usually reads from standard input, redirection is used if you want to change that. You'd want to do this:

Code:
function scanFile()
{
        # Local variable, incase you have FILENAME as a global variable somewhere else
        local FILENAME
        while read FILENAME
        do
                echo "$FILENAME"
        done < "$1"

        # Because BASH breaks the loop before processing the last input in some circumstances
        [ ! -z "$FILENAME" ] && echo "$FILENAME"        
}

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Reading a file using sh with spaces in filename

Hi I am trouble parsing through a file with spaces in the filename. I need to grab "supportIDPS/SCM/windows_install/file groups/dds.fgl" and then do a md5sum on it. I am using sh. Any help is appreciated. Here is an example of the input file: 7eedbc9f7902bf4c1878d9e571addf9a ... (4 Replies)
Discussion started by: jekl5
4 Replies

2. Shell Programming and Scripting

mv Filename variable to another filename

Anyone who can assist : I am trying to pass the group vairiable to a filename: rpt_tsavegrp=/export/legato/scripts/$group_savegrp_rpt.$dat It will not pass to variable. Anyone have any ideas what I am doing wrong here. Thanks # This script sends email that save group completed.... (3 Replies)
Discussion started by: gzs553
3 Replies

3. UNIX for Dummies Questions & Answers

get the latest file by reading the date in the filename.

Hi, I grep for a pattern in a list of files. "grep -i -l $pattern *.datx*" it may give me n number of files. say for eg, it gives me 2 files. lock_eicu_20071228_00000000.dat_20071228_05343100 lock_eicu_20080501_00000000.dat_20080501_05343900 out of these 2 files I need to get the... (7 Replies)
Discussion started by: prsshini
7 Replies

4. Shell Programming and Scripting

variable used as filename

Hello, i'm fairly new to scripting, so please bear with me (I did try looking this up first, i figured it had to have been asked already). #!/bin/bash fileName=`date | sed -n 's/ /_/g p' | sed -n 's/^/Backup_/p' | sed -n 's/$/\.tar/p'`; #THIS SETS BACKUP_DATE echo $fileName #TEST OF VALUE ... (4 Replies)
Discussion started by: jzacsh
4 Replies

5. Shell Programming and Scripting

Reading variable from file variable values

Hi, Here is the output of lpstat. I would like to read value of Queue which is(abxxxxb1)and status that is DOWN in first line. i dont care what is in second line. any one can help me.thanks Queue Dev Status Job Files User PP % Blks Cp Rnk ------- ----- ---------... (5 Replies)
Discussion started by: sagii
5 Replies

6. UNIX for Dummies Questions & Answers

Reading filename from directory

I am using the following code to read filename from the directory: for i in ` ls $inputDir | grep $partialName*.csv` do echo $i done But the echo is giving me the following: ls | grep cm_ctx*.csv instead of the full filename "cm_ctx_2009_07_15_17_18.csv" Any ideas anyone? I... (2 Replies)
Discussion started by: khanvader
2 Replies

7. Homework & Coursework Questions

Matlab help! Reading in a file with a variable filename

1. The problem statement, all variables and given/known data: I want to read in a file, and plot the data in matlab. However, I do not like hardwiring filenames into my codes, so I always give the user the option to specify what the filename is. I am pretty inexperienced with matlab, so I have no... (0 Replies)
Discussion started by: ds7202
0 Replies

8. Shell Programming and Scripting

Need help in reading a filename

Hi Guys, I have the following input. test_junk_file__20120210092009.txt latest_file__20120210092009.txt side_load_junk_file__20120210092009.txt I need to exclude the timestamp part from the file. so, the output should be as follows. test_junk_file.txt latest_file.txt... (7 Replies)
Discussion started by: mac4rfree
7 Replies

9. Shell Programming and Scripting

reading filename in nested directories

Hi all, I have some directory structure as $ls -ltr drwxr-xr-x 1 mscprod us_msc 512 May 10 08:34 650 drwxr-xr-x 1 mscprod us_msc 512 May 10 08:51 652 drwxr-xr-x 1 mscprod us_msc 512 May 10 08:51 640 drwxr-xr-x 1 mscprod us_msc512 May 10 09:13 654 $ cd 650/ $ls fileabc.root and within... (7 Replies)
Discussion started by: emily
7 Replies

10. Open Source

Splitting files using awk and reading filename value from input data

I have a process that requires me to read data from huge log files and find the most recent entry on a per-user basis. The number of users may fluctuate wildly month to month, so I can't code for it with names or a set number of variables to capture the data, and the files are large so I don't... (7 Replies)
Discussion started by: rbatte1
7 Replies

LEARN ABOUT REDHAT

info

INFO(1) 							   User Commands							   INFO(1)

NAME

       info - read Info documents

SYNOPSIS

       info [OPTION]... [MENU-ITEM...]

DESCRIPTION

       Read documentation in Info format.

OPTIONS

       --apropos=STRING
	      look up STRING in all indices of all manuals.

       -d, --directory=DIR
	      add DIR to INFOPATH.

       --dribble=FILENAME
	      remember user keystrokes in FILENAME.

       -f, --file=FILENAME
	      specify Info file to visit.

       -h, --help
	      display this help and exit.

       --index-search=STRING
	      go to node pointed by index entry STRING.

       -n, --node=NODENAME
	      specify nodes in first visited Info file.

       -o, --output=FILENAME
	      output selected nodes to FILENAME.

       -R, --raw-escapes
	      don't remove ANSI escapes from man pages.

       --restore=FILENAME
	      read initial keystrokes from FILENAME.

       -O, --show-options, --usage
	      go to command-line options node.

       --subnodes
	      recursively output menu items.

       --vi-keys
	      use vi-like and less-like key bindings.

       --version
	      display version information and exit.

       The first non-option argument, if present, is the menu entry to start from; it is searched for in all `dir' files along INFOPATH.  If it is
       not present, info merges all `dir' files and shows the result.  Any remaining arguments are treated as the names of menu items relative	to
       the initial node visited.

EXAMPLES

       info   show top-level dir menu

       info emacs
	      start at emacs node from top-level dir

       info emacs buffers
	      start at buffers node within emacs manual

       info --show-options emacs
	      start at node with emacs' command line options

       info -f ./foo.info
	      show file ./foo.info, not searching dir

REPORTING BUGS

       Email   bug   reports   to   bug-texinfo@gnu.org,   general   questions	 and  discussion  to  help-texinfo@gnu.org.   Texinfo  home  page:
       http://www.gnu.org/software/texinfo/

COPYRIGHT

       Copyright (C) 2002 Free Software Foundation, Inc.  There is NO warranty.  You may redistribute this software under the  terms  of  the  GNU
       General Public License.	For more information about these matters, see the files named COPYING.

info 4.3							   November 2002							   INFO(1)
All times are GMT -4. The time now is 11:03 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy