Is better way copy list of multiple files, rename and gzip Post: 302933622

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Top Forums Shell Programming and Scripting Is better way copy list of multiple files, rename and gzip Post 302933622 by dotran on Saturday 31st of January 2015 07:20:09 PM

01-31-2015

Registered User

Is better way copy list of multiple files, rename and gzip

Is better way to write the script loop through one by one "Old_File_1: & New_File_1:" to copy 100 files to /staging/test folder then re-name & gzip all those files? I wrote this code below and don't like that much. Thanks
I have a control_file under /tmp/test folder like below 100 files and {DATE_FILE} = YYYYMMDD

Code:

/tmp/test: cat control_file
Old_File_1: AB_P_Cdf_{DATE_FILE}.txt 
Old_File-2: DD_P_DAdf_{DATE_FILE}.txt
Old_File-3: dsf_P_DEMO_{DATE_FILE}.txt
Old_File-4: sdfd_P_Pd_{DATE_FILE}.txt
bla bla until Old_File-100
 
New_File_1: test1_sd_WW_{DATE_FILE}.txt
New_File_2: test2vd_WW_new_{DATE_FILE}.txt
New_File_3: test3cfd_dfP_dff_{DATE_FILE}.txt
New_File_4: test4gdd_WW_P_OdfsDUCT_{DATE_FILE}.txt
bla bla until New_File-100

Code:

 
#!/bin/ksh
DATE="$1"
Old_File=`cat /tmp/test/controlfile | grep Old_File | awk '{print $2}' | sed "s/{DATE_FILE}/${DATE}/g"`
#Old_File=`cat /tmp/test/controlfile | grep Old_File | awk '{print $2}' | sed "s/{DATE_FILE}/${1}/"`
New_File=`cat /tmp/test/controlfile | grep New_File | awk '{print $2}' | sed "s/{DATE_FILE}/${DATE}/g"`
#New_File=`cat /tmp/test/controlfile | grep New_File | awk '{print $2}' | sed "s/{DATE_FILE}/${1}/"`
 
###################################
# Copy file to /staging/test folder
###################################
cd /tmp/test
#Old_File=`cat /tmp/test/controlfile | grep Old_File | awk '{print $2}' | sed "s/{DATE_FILE}/${DATE}/g`
for i in $Old_File;
do
cp $i /staging/test;
done
 
###################################
# Rename all Old File to New File
###################################
cd /staging/test
cat /tmp/test/controlfile | grep Old_File | awk '{print $2}' | sed "s/{DATE_FILE}/${DATE}/g" > /staging/test/file1.txt
cat /tmp/test/controlfile | grep New_File | awk '{print $2}' | sed "s/{DATE_FILE}/${DATE}/g" > /staging/test/file2.txt
 
paste -d" " file1.txt file2.txt > file3.txt
sed 's/^/mv /' file3.txt > file4.txt
chmod 775 file4.txt
./file4.txt
rm -f file*.txt
###################################
# Gzip all New File
###################################
for i in $New_File;
do
gzip $i
done

Last edited by dotran; 01-31-2015 at 11:57 PM.. Reason: Add CODE and ICODE tags and change QUOTE tags to CODE tags.

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LEARN ABOUT DEBIAN

expect_unbuffer

UNBUFFER(1)						      General Commands Manual						       UNBUFFER(1)

NAME

       unbuffer - unbuffer output

SYNOPSIS

       unbuffer program [ args ]

INTRODUCTION

       unbuffer  disables  the output buffering that occurs when program output is redirected from non-interactive programs.  For example, suppose
       you are watching the output from a fifo by running it through od and then more.

	    od -c /tmp/fifo | more

       You will not see anything until a full page of output has been produced.

       You can disable this automatic buffering as follows:

	    unbuffer od -c /tmp/fifo | more

       Normally, unbuffer does not read from stdin.  This simplifies use of unbuffer in some situations.  To use unbuffer in a pipeline,  use  the
       -p flag.  Example:

	       process1 | unbuffer -p process2 | process3

CAVEATS

       unbuffer -p may appear to work incorrectly if a process feeding input to unbuffer exits.  Consider:
	       process1 | unbuffer -p process2 | process3

       If  process1  exits,  process2 may not yet have finished.  It is impossible for unbuffer to know long to wait for process2 and process2 may
       not ever finish, for example, if it is a filter.  For expediency, unbuffer simply exits when it encounters an EOF from either its input	or
       process2.

       In  order  to  have a version of unbuffer that worked in all situations, an oracle would be necessary.  If you want an application-specific
       solution, workarounds or hand-coded Expect may be more suitable.  For example, the following example shows how to allow grep to finish pro-
       cessing	when  the  cat before it finishes first.  Using cat to feed grep would never require unbuffer in real life.  It is merely a place-
       holder for some imaginary process that may or may not finish.  Similarly, the final cat at the end of the pipeline is  also  a  placeholder
       for another process.

       $ cat /tmp/abcdef.log | grep abc | cat
       abcdef
       xxxabc defxxx
       $ cat /tmp/abcdef.log | unbuffer grep abc | cat
       $ (cat /tmp/abcdef.log ; sleep 1) | unbuffer grep abc | cat
       abcdef
       xxxabc defxxx
       $

BUGS

       The man page is longer than the program.

SEE ALSO

       "Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.

AUTHOR

       Don Libes, National Institute of Standards and Technology

								    1 June 1994 						       UNBUFFER(1)