Break one long string into multiple fixed length lines Post: 302951249

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Top Forums Shell Programming and Scripting Break one long string into multiple fixed length lines Post 302951249 by bubbawuzhere on Tuesday 4th of August 2015 10:11:05 AM

08-04-2015

Registered User

Break one long string into multiple fixed length lines

This is actually a KSH under Unix System Services (Z/OS), but hoping I can get a standard AIX/KSH solution to work...

I have a very large, single line file in Windows, that we download via FTP, with the "SITE WRAP" option, into a Z/OS file with an LRECL of 200. This essentially breaks the single long line down into multiple 200 byte records.

We are converting from FTP, to (OPENSSH) SFTP, which unfortunately does not include the "SITE WRAP" ability. Therefore, I'm attempting to come up with another means of accomplishing the task.

I have downloaded the file to USS, and have written a simple script to read in the record and split it out into multiple, 200 byte records, and write those out to a new file...

Code:

#!/bin/ksh                             
echo 'Starting break..'                
rm -f /homesh/ljamoo/SEQMAST2          
CPOS=1                                 
echo 'Loop..'                          
while read TLINE                       
 do                                    
 NLINE=`expr substr $TLINE $CPOS 200`  
 echo $NLINE >> /homesh/ljamoo/SEQMAST2
 CPOS=`expr $CPOS + 200`               
 done </homesh/ljamoo/SEQMAST          
echo 'Done.'                           
exit

However, this is not working as USS is apparently unable to read in the entire record into the TLINE variable...

Code:

Starting break..                                                                
Loop..                                                                          
read: /homesh/ljamoo/scripts/break.sh 6: FSUM9225 no memory: EDC5132I Not enough memory.
/homesh/ljamoo/scripts/break.sh 11: FSUM9225 no memory: EDC5132I Not enough memory.
/homesh/ljamoo/scripts/break.sh 11: FSUM9225 no memory: EDC5132I Not enough memory.
/homesh/ljamoo/scripts/break.sh 11: FSUM9225 no memory: EDC5132I Not enough memory.
....

So, does anyone have any suggestions on how else to break it down? Being a mainframe dinosaur, I have yet to wrap my head around the "sed" and "awk" commands, but hoping maybe there is something like that, which would accomplish this.

Thanks!

bubbawuzhere

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curlopt_maxfilesize

CURLOPT_MAXFILESIZE(3)					     curl_easy_setopt options					    CURLOPT_MAXFILESIZE(3)

NAME

       CURLOPT_MAXFILESIZE - maximum file size allowed to download

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXFILESIZE, long size);

DESCRIPTION

       Pass  a	long  as  parameter.  This allows you to specify the maximum size (in bytes) of a file to download. If the file requested is found
       larger than this value, the transfer will not start and CURLE_FILESIZE_EXCEEDED will be returned.

       The file size is not always known prior to download, and for such files this option has no effect even if the file transfer ends  up  being
       larger than this given limit. This concerns both FTP and HTTP transfers.

       If you want a limit above 2GB, use CURLOPT_MAXFILESIZE_LARGE(3).

DEFAULT

       None

PROTOCOLS

       FTP and HTTP

EXAMPLE

       TODO

AVAILABILITY

       Always

RETURN VALUE

       Returns CURLE_OK

SEE ALSO

       CURLOPT_MAXFILESIZE_LARGE(3), CURLOPT_MAX_RECV_SPEED_LARGE(3),

libcurl 7.54.0							 February 03, 2016					    CURLOPT_MAXFILESIZE(3)

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