readmin advance usage.
-c : display changed byte
Display altered bytes at the end of any ALT line , after the Tag, "ChgBytes:"
Example:
readmin -c
Output line:
160222 09:17:00 cc 10 stpost Alt STOCK_LOG 1 1002595 ECLIPSE CHAIR YELLOW CODE FABRIC 2609 ChgBytes: 124-125,3076-3077,3172,3333-3334,3336
-f <filename> : specify input log file
Example:
readmin -f log.22feb17-0
-m <logid:offset:datatype>
Search the log file for Alter logs, that changed a paticular field on one type of record.
logid
logid is the control logid which you can easily find out using fdbstat.
following example show logid for STOCK is 9
fdbstat -v /u/cc/comp/stock.dat
Filename flags ssize/ vsize/ bucsiz/ 1stbuc/ # bucs/ lastbuc nulls log release
prelen suflen keysize elsize maxnkey lastnod ok ? id alphalen
stock.dat MASTER 3072 1024 4096 2 0 1147 9 64
offset
offset is the starting byte of the field in the record. which can be found by running align on any dec files in /u/ccr.xx/std/hdrs/
use stock.dec as an example
align /u/ccr.16/std/hdrs/stock.dec
following is a simplified version of the output.
start end no.of decimal datatype field_name byte byte byte /* struct s_sstock */ 0 3 4 0 RECPTR recno 4 5 2 0 BRANCHSIZE active 6 21 16 0 TEXT code 22 87 66 0 FILL old_desc 88 88 1 0 TEXT replen_period 89 89 1 0 TEXT status 90 90 1 0 SHTINT staxcode 91 91 1 0 SHTINT n_dim 92 95 4 0 RECPTR stk_par 96 98 3 0 TEXT st_type 99 104 6 0 TEXT b_unit 105 110 6 0 TEXT s_unit 111 111 1 0 TEXT use_curr_cost 112 115 4 0 RECPTR catptr 116 117 2 0 TYPDATE lastdblogedd 118 119 2 0 TYPTIME lastdblogedt 120 123 4 2 SHTDEC markup 124 127 4 2 SHTDEC supp_cost etc.... /* total size of s_sstock = 3072 */ /* struct s_vstock */ 0 3 4 2 SHTDEC incost 4 7 4 2 SHTDEC l_cost 8 9 2 0 TYPDATE lpdate 10 11 2 0 TYPDATE lastmov 12 35 24 0 FILL vsupp_fill 36 39 4 2 SHTDEC obqty 40 43 4 2 SHTDEC qty_on_ebay 44 47 4 2 SHTDEC qohand etc... /* total size of s_vstock = 1024 */