I am trying to assign a awk array for further processing later in the script. I can't seem to figure it out. If someone could look at this and help me, I would very much appreciate it.
Thanks in Advance.
for ( x = 1 ; x <= Var ; x++ ) {
if ( x in varr ) {
... (2 Replies)
Hi,
i want awk to read a file and place it's content into two arrays. When trying to read these arrays with a "for a in ${source_path} "-Loop it gives the right result. But when trying to access directly (/bin/echo ${source_path}) it doesn't work.
I read "all "the awk threads in this forum and... (6 Replies)
Is there a way to retain the awk array in the shell.
My requirement
file a.txt
A B Count
10 1 25
10 2 20
10 3 21
11 1 20
11 2 22
12 2 40
12 3 15
A and B are my variables and count... (6 Replies)
I want to ask the user to enter an X amount of file names. I want to put those names into an array and then loop back through them to verify they are in the directory. 1st- How would I assign the value to an array and what is the correct syntax. 2nd- how would i reference that array after I... (3 Replies)
file.txt : is delimiter:
abc:def:ghi
jkl:mno: pqr
123:456:789
if I do the cut command, and cut the first column, and echo it out
I will get the output:
abc
jkl
123
How can I assign the column of text that I've cut into Array?
e.g If I were to echo array array it will output as:... (9 Replies)
Hi,
I have a piece of code as follows:
i=0
while read LINE
do
var = "$LINE"
i=$((i+1))
echo "${var}"
done < file
I want to assign value to the array var.
However, when i execute the script i get a error.
Please can you help me know what i am missing.
I ultimately want to... (2 Replies)
Hi all ,
I have a string like para1#para2#para3
i want to assign para1 as first element para2 as second and so on
i tried
IFS=#
set -A array para1#para2#para3
echo ${array}
para1 para2 para3
i want echo ${array}
para1 (2 Replies)
Hi,
I have a 10*10 two dimensional array. How do I assign value to all it's 100 elements at once? I don't want to open two for loops and assign one by one.
Thanks,
Shuri (1 Reply)
Discussion started by: shurimano
1 Replies
LEARN ABOUT MINIX
begin
BEGIN(7) SQL Commands BEGIN(7)NAME
BEGIN - start a transaction block
SYNOPSIS
BEGIN [ WORK | TRANSACTION ] [ transaction_mode [, ...] ]
where transaction_mode is one of:
ISOLATION LEVEL { SERIALIZABLE | REPEATABLE READ | READ COMMITTED | READ UNCOMMITTED }
READ WRITE | READ ONLY
DESCRIPTION
BEGIN initiates a transaction block, that is, all statements after a BEGIN command will be executed in a single transaction until an
explicit COMMIT [commit(7)] or ROLLBACK [rollback(7)] is given. By default (without BEGIN), PostgreSQL executes transactions in ``autocom-
mit'' mode, that is, each statement is executed in its own transaction and a commit is implicitly performed at the end of the statement (if
execution was successful, otherwise a rollback is done).
Statements are executed more quickly in a transaction block, because transaction start/commit requires significant CPU and disk activity.
Execution of multiple statements inside a transaction is also useful to ensure consistency when making several related changes: other ses-
sions will be unable to see the intermediate states wherein not all the related updates have been done.
If the isolation level or read/write mode is specified, the new transaction has those characteristics, as if SET TRANSACTION [set_transac-
tion(7)] was executed.
PARAMETERS
WORK
TRANSACTION
Optional key words. They have no effect.
Refer to SET TRANSACTION [set_transaction(7)] for information on the meaning of the other parameters to this statement.
NOTES
START TRANSACTION [start_transaction(7)] has the same functionality as BEGIN.
Use COMMIT [commit(7)] or ROLLBACK [rollback(7)] to terminate a transaction block.
Issuing BEGIN when already inside a transaction block will provoke a warning message. The state of the transaction is not affected. To
nest transactions within a transaction block, use savepoints (see SAVEPOINT [savepoint(7)]).
For reasons of backwards compatibility, the commas between successive transaction_modes can be omitted.
EXAMPLES
To begin a transaction block:
BEGIN;
COMPATIBILITY
BEGIN is a PostgreSQL language extension. It is equivalent to the SQL-standard command START TRANSACTION [start_transaction(7)], whose ref-
erence page contains additional compatibility information.
Incidentally, the BEGIN key word is used for a different purpose in embedded SQL. You are advised to be careful about the transaction
semantics when porting database applications.
SEE ALSO
COMMIT [commit(7)], ROLLBACK [rollback(7)], START TRANSACTION [start_transaction(7)], SAVEPOINT [savepoint(7)]
SQL - Language Statements 2010-05-14 BEGIN(7)