Extract values from a text file in linux - linux

Question

I have a log file generated from sqlldr log file and I was wondering if I can write a shell to extract the following values from the log below using Linux. Thanks
Table_name: TEST
Row_load: 100
Row_fail: 10
Date_run: Feb 07, 2014
Table TEST:
100 Rows successfully loaded.
10 Rows not loaded due to data errors.
0 Rows not loaded because all WHEN clauses were failed.
0 Rows not loaded because all fields were null.
Bind array size not used in direct path.
Column array rows : 5000
Stream buffer bytes: 256000
Read buffer bytes: 1048576
Total logical records skipped: 0
Total logical records read: 14486
Total logical records rejected: 0
Total logical records discarded: 0
Total stream buffers loaded by SQL*Loader main thread: 3
Total stream buffers loaded by SQL*Loader load thread: 0
Run began on Fri Feb 07 12:21:24 2014
Run ended on Fri Feb 07 12:21:31 2014
Elapsed time was: 00:00:06.88
CPU time was: 00:00:00.11

Answer 1

If the structure of your log file is always same, then you can do the following with awk:
awk '
NR==1 { sub(/:/,x); print "Table_name: "$NF}
NR==2 { print "Row_load: " $1}
NR==3 { print "Row_fail: " $1}
/Run ended/ { print "Date_run: "$5 FS $6","$8}' file
Output
$ awk '
NR==1 { sub(/:/,x); print "Table_name: "$NF}
NR==2 { print "Row_load: " $1}
NR==3 { print "Row_fail: " $1}
/Run ended/ { print "Date_run: "$5 FS $6","$8}' file
Table_name: TEST
Row_load: 100
Row_fail: 10
Date_run: Feb 07,2014