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Top Forums UNIX for Dummies Questions & Answers How to retrieve the value of variable in shell script which is called by crontab Post 302441937 by jadoo_c2 on Tuesday 3rd of August 2010 02:56:50 AM
Old 08-03-2010
How to retrieve the value of variable in shell script which is called by crontab

There are two files one is shell script (sample.sh) and another is configuration file (sampl_conf.cfg)

configuration file contains one variable $FTP_HOME. the value of this variable vaires for user to user. If user is say jadoo then value is /home/jadoo/ftp/, for user1 - /home/user1/ftp. The value can be seen at command prompt by typing "echo $FTP_HOME".

In shell script $FTP_HOME variable is used to find out some old file in that path (/home/jadoo/ftp).

Shell scripts reads the configuration file line by line and assing $FTP_HOME variable to another variable say "path"

Code:
 
#!/bin/sh
...........
    path=`echo $LINE | cut -d" " -f1`
    duration=`echo $LINE | cut -d" " -f2`
    filename=`echo $LINE | cut -d" " -f3`
    path="$path"
path=`eval echo $path`
    if [ "$filename" != "" ] ; then
         `find $path/$filename -type f -mtime $duration >> $tmpfile;`

Now find should search mentioned file for specific duration in $FTP_HOME directory, but it unable to replace the $FTP_HOME variable by its value.
below error displays on terminal

find: stat() error /log*: No such file or directory

Sample configuration file

Code:
 
$FTP_HOME +15 log*

thanks in advance.

---------- Post updated at 12:26 PM ---------- Previous update was at 12:02 PM ----------

any kind of help will be appricated.
 

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VSTP(1) 						       BrlNet User's Manual							   VSTP(1)

NAME
vstpg, vstpp - VisioBraille file transferring SYNOPSIS
vstpg [-ifbnd] [-s socketport] [-k keyname] [-o configname] file ... DESCRIPTION
vstpg (resp. vstpp) gets (resp. puts) files from (resp. onto) a VisioBraille terminal. For communicating with the terminal, you must launch brltty with the BrlNet driver, and telling BrlNet to use the VisioBraille driver. Before putting on the terminal, file names are truncated to 8 characters without any extension. Before getting from terminal, leading path and trailing extensions are removed, but put back for local filename. COMMAND-LINE OPTIONS -i ask for confirmation of transfer, for each file (on the terminal) -f don't ask for such a confirmation (default) -b if they exists, recursively rename the old files with an added .x suffix, just like logrotate does -n do not keep such backup file (default) -s socketport use socketport as the port number instead of default for connecting to BrlNet -k filename use filename as key path instead of default for reading BrlNet's authentication key -d use current directory rather than the download directory (see vbs_dir below) -o filename also read filename as config file CONFIG FILE
vstpg and vstpp read a configuration file $HOME/.vstprc which contains keywords or equalities, one per line (what follows a # is ignored). You can ask them to also read any other file thanks to the -o option. Here are keywords: backup make -b option the default nobackup make -f option the default and equalities: keyname = filename use this file instead of default, to find BrlNet's authentication key socketport = port use this port number, instead of default, to connect to BrlNet vbs_ext = .ext use .ext as an extension for downloaded files (.vis by default) this is overriden on command line if an extension is provided in the file name vbs_dir = path use path instead of current directory for putting files, except when using the -d option, or if the filename begins with '.' RETURNED VALUE
1 syntax error on command line 2 connection with BrlNet error 3 Unix file error 4 Protocol error 16 interrupted by user SHELL EXPANSIONS
Beware of special chars: * and . are often expanded by your shell, hence vstpp * will probably do what you want, putting every file exist- ing in the current directory onto the terminal, but vstpg * may not do what you want: it will only get every file which already exist in the current directory, skipping those you just created on your terminal ! If you want to get every file which exist in the terminal, you should use vstpg '*' or something similar (please read your shell manual). The same warning applies to other special chars, such as $, ~, &,... which should be protected by surrounding arguments by quotes (') or by using single backslashes () just before them (please read your shell manual). BUGS
The one we could find has been corrected :) AUTHOR
Samuel Thibault <samuel.thibault@ens-lyon.org> and Sebastien Hinderer <sebastien.hinderer@ens-lyon.fr> BrlNet Jul 15, 2002 VSTP(1)
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