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Full Discussion: Error Trapping
Top Forums Shell Programming and Scripting Error Trapping Post 302576617 by methyl on Friday 25th of November 2011 10:36:50 AM
Old 11-25-2011
I agree with m.d.ludwig. What is the purpose of the script? Where do the values of these variables come from?
Code:
${FTP_Path}
${SourceFile_Path}
${List_Temp}
${Segmentlist_Path}
${Segment_List}

We can avoid using "ls" by using "test -f " instead. Can use unix "touch" command to ensure that the logfile is aways there.
Code:
while read SegList
do
        filename="${FTP_Path}/${SegList}.DAT.${Datelist}.GZ"
        logfile="${SourceFile_Path}/${List_Temp}"
        # Ensure logfile always exists
        touch "${logfile}"
        if [ -f "${filename}" ]
        then
                echo "${filename}"|cut -d '.' -f2>>"${logfile}"
        fi
done<${Segmentlist_Path}/${Segment_List}

 

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LEARN ABOUT MOJAVE

logsave

LOGSAVE(8)						      System Manager's Manual							LOGSAVE(8)

NAME

       logsave - save the output of a command in a logfile

SYNOPSIS

       logsave [ -asv ] logfile cmd_prog [ ... ]

DESCRIPTION

       The  logsave  program  will  execute  cmd_prog with the specified argument(s), and save a copy of its output to logfile.  If the containing
       directory for logfile does not exist, logsave will accumulate the output in memory until it can be written out.	A copy of the output  will
       also be written to standard output.

       If  cmd_prog  is a single hyphen ('-'), then instead of executing a program, logsave will take its input from standard input and save it in
       logfile

       logsave is useful for saving the output of initial boot scripts until the /var partition is mounted,  so  the  output  can  be  written	to
       /var/log.

OPTIONS

       -a     This option will cause the output to be appended to logfile, instead of replacing its current contents.

       -s     This  option  will  cause  logsave  to  skip writing to the log file text which is bracketed with a control-A (ASCII 001 or Start of
	      Header) and control-B (ASCII 002 or Start of Text).  This allows progress bar information to be visible to the user on the  console,
	      while not being written to the log file.

       -v     This option will make logsave to be more verbose in its output to the user.

AUTHOR

       Theodore Ts'o (tytso@mit.edu)

SEE ALSO

       fsck(8)

E2fsprogs version 1.44.1					    March 2018								LOGSAVE(8)
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