Hi,
I want to split before reading the complete line as the line is very big and its throwing out of memory. can you suggest.
when i say
#cat $inputFile | while read eachLine
and use the eachLine to split its throwing out of memory as the line size is more than 10000000 characters.
Can you... (1 Reply)
Hi,
I have a very simple C program which will run in UNIX. When i am passing * as the command line argument, i am gettig the below output.
Program:
#include <stdio.h>
#include "mylibrary.h"
int **environ;
int main(int argc,char *argv)
{
int i;
printf("\nHello... (2 Replies)
Dear All,
I want to split single line into two line or three lines wherever “|” separated values comes using
Input line
test,DEMTEMPUT20100404010012,,,,,,,,|0070086|0070087,
output shoule be
test,DEMTEMPUT20100404010012,,,,,,,,0070086,
test,DEMTEMPUT20100404010012,,,,,,,,0070087, (14 Replies)
Hi,
I need help to split lines from a file into multiple files.
my input look like this:
13
23 45 45 6 7
33 44 55 66 7
13
34 5 6 7 87
45 7 8 8 9
13
44 55 66 77 8
44 66 88 99 6
I want to split every 3 lines from this file to be written to individual files. (3 Replies)
i want to write a shell script function that will ftp the files passed in the command line . i have written a shell script for ftp but how will it do for all files passed in command line argument ,
i am passing 4 files as argument
./ftp.sh file1 file2 file3 file4
code written by me... (5 Replies)
Hi Guys
When I run the below command
ssh -o 'PasswordAuthentication yes' -o 'PreferredAuthentications publickey' -i $HOME/.ssh/id_dsa Server_Name
I found the below error
ommand-line line 0: Missing yes/no argument
Kindly help me to sort out
Double post, continued... (0 Replies)
Hi All
I have one query,say i have a requirement like the below code should be
move to diffent files whose maximum lines can be of 10 lines.Say in the below example,it consist of 14 lines.
This should be moved logically using the data in the fisrt coloumn to file1 and file 2.The data of first... (2 Replies)
Hello,
I need to split a file by number of records and rename each split file with actual filename pre-pended with 3 digit split number.
What I have tried is the below command with 2 digit numeric value
split -l 3 -d abc.txt F (# Will Produce split Files as F00 F01 F02)
How to produce... (19 Replies)
i use the split command to split a one terabyte backup file into 10 chunks of 100 GB each. The files are split one after the other. While the files is being split, I will like to scp the files one after the other as soon as the previous one completes, from server A to Server B. Then on server B ,... (2 Replies)
Discussion started by: malaika
2 Replies
LEARN ABOUT DEBIAN
mdb-sql
MDBTools(1)MDBTools(1)NAME
mdb-sql - SQL interface to MDB Tools
SYNOPSIS
mdb-sql [-HFp] [-d delimiter] [-i file] [-o file] [database]
DESCRIPTION
mdb-sql is a utility program distributed with MDB Tools.
mdb-sql allows querying of an MDB database using a limited SQL subset language.
OPTIONS -H Supress header row.
-F Supress footer row.
-p Turn off pretty printing. By default results are printed in an ascii table format which looks nice but is not conducive to manipu-
lating the output with unix tools. This option prints output plainly in a tab separated format.
-d Specify an alternative column delimiter. If no delimiter is specified, columns will be delimited by a tab character if pretty print-
ing (-p) is turned off. If pretty printing is enabled this option is meaningless.
-i Specify an input file. This option allows an input file containing the SQL to be passed to mdb-sql. See Notes.
-o Specify an output file. This option allows the name of an output file to be used instead of stdout.
COMMANDS
mdb-sql in interactive mode takes some special commands.
connect to <database>
If no database was specified on the command line this command is necessary before any querys are issued. It also allows the switch-
ing of databases once in the tool.
disconnect
Will disconnect from the current database.
go Each batch is sent to the parser using the 'go' command.
reset A batch can be cleared using the 'reset' command.
list tables
The list tables command will display a list of available tables in this database, similar to the mdb-tables utility on the command
line.
describe table <table>
Will display the column information for the specified table.
quit Will exit the tool.
SQL LANGUAGE
The currently implemented SQL subset is quite small, supporting only single table queries, no aggregates, and limited support for WHERE
clauses. Here is a brief synopsis of the supported language.
select:
SELECT [* | <column list>] FROM <table> WHERE <where clause>
column list:
<column> [, <column list>]
where clause:
<column> <operator> <literal> [AND <where clause>]
operator:
=, =>, =<, <>, like, <, >
literal:
integers, floating point numbers, or string literal in single quotes
NOTES
When passing a file (-i) or piping output to mdb-sql the final 'go' is optional. This allow constructs like
echo "Select * from Table1" | mdb-sql mydb.mdb
to work correctly.
The -i command can be passed the string 'stdin' to test entering text as if using a pipe.
ENVIRONMENT
MDB_JET3_CHARSET
Defines the charset of the input JET3 (access 97) file. Default is CP1252. See iconv(1).
MDBICONV
Defines the output charset. Default is UTF-8. mdbtools must have been compiled with iconv.
MDBOPTS
semi-column separated list of options:
o use_index
o no_memo
o debug_like
o debug_write
o debug_usage
o debug_ole
o debug_row
o debug_props
o debug_all is a shortcut for all debug_* options
HISTORY
mdb-sql first appeared in MDB Tools 0.3.
SEE ALSO gmdb2(1)mdb-export(1)mdb-hexdump(1)mdb-prop(1)mdb-ver(1)mdb-array(1)mdb-header(1)mdb-parsecsv(1)mdb-schema(1)mdb-tables(1)AUTHORS
The mdb-sql utility was written by Brian Bruns.
BUGS
The supported SQL syntax is a very limited subset and deficient in several ways.
0.7 13 July 2013 MDBTools(1)