You are right, looping through above shell script 10000 times is an enormous waste of resources and time. It creates 20000 processes for 2 commands to be run 10000 times. How about doing it in one command, leaving the looping to it? If $5 can have ONLY the values "X" and "Y", try
Should there be other values in $5 for which $2 should not be modified, try
Hi All,
I have a data file which has two columns Location and the Count.
The file looks like this
India 1
US 0
UK 2
China 0
What I have to do is whenever I fails to login to Oracle then I have to add 1 to the count for that location.
Whenever my script fails to login to Oracle for a... (5 Replies)
Write a quick shell snippet to find all of the IPV4 IP addresses
in any and all of the files under /var/lib/output/*, ignoring
whatever else may be in those files. Perform a reverse lookup on
each, and format the output neatly, like "IP=192.168.0.1,
... (0 Replies)
Dear All,
I have a file with the syntax below (composed of several <log ..... </log> stanzas)
I need to search this file for a number e.g. 2348022225919, and if it is found in a stanza, copy the whole stanza/section (<log .... </log>) to another output file.
The numbers to search for are... (0 Replies)
Hi,
I am new to perl.
I want to read from a file on the basis of some conditions..
I want to define parameters in a configuration file in such a manner like...
etc..
in my perl script, theer is a variable like this..
then i want to read values from first if block from the file... (1 Reply)
Hello,
I have a text file that i want to redirect into a new file , searching and replacing certain string during the opertaion.
This should be done using shell script , so it should not be interactive.
The script should get four parameters :
source file
target file
source string
target... (1 Reply)
Hi,
I am having 2 servers, Need to delete files from server1 if those files exist in server2 other wise no action using sftp .And the process is non-interactive way. I have got confused how to check the condition in sftp because there is non of the shell condition or loop command is executing.... (2 Replies)
Hi,
I have a file with header, detail and trailer records.
HDR|111
DTL|abc|100|xyz
DTL|abc|50|xyz
TRL|150
I need to add the values in 3rd field from DTL records.
Using awk, I am doing it as follows:
awk -F'|' '$1=="DTL"{a += $3} END {print a}' <source_file>
However, I want to... (3 Replies)
I have got about 100 ascii files and I want replace some variable with a new one on an HP-UX system. But I want to put a line of comments before the change. I want to make file1 to file2. I am explaining below.
file1:
line1
line2
export QNAME=ABC
line4
line5
file2:
line1
line2
#... (3 Replies)
I am trying to parse a file but the filehas binary data inline mixed with text fields.
I tried the binutils strings function , it get the binary data out but put the char following the binary data in a new line .
input file
app_id:1936 pgm_num:0 branch:TBNY ord_num:0500012(–QMK) deal_num:0... (12 Replies)
I've ended up with a small collection of libraries I like to use with awk, but this means I can't do awk -f librarycode.awk '{ program code }' filename because awk will assume that anything after -f is a filename, not code. Is there any way I can do both? (6 Replies)
Discussion started by: Corona688
6 Replies
LEARN ABOUT LINUX
rollback
ROLLBACK(7) SQL Commands ROLLBACK(7)NAME
ROLLBACK - abort the current transaction
SYNOPSIS
ROLLBACK [ WORK | TRANSACTION ]
DESCRIPTION
ROLLBACK rolls back the current transaction and causes all the updates made by the transaction to be discarded.
PARAMETERS
WORK
TRANSACTION
Optional key words. They have no effect.
NOTES
Use COMMIT [commit(7)] to successfully terminate a transaction.
Issuing ROLLBACK when not inside a transaction does no harm, but it will provoke a warning message.
EXAMPLES
To abort all changes:
ROLLBACK;
COMPATIBILITY
The SQL standard only specifies the two forms ROLLBACK and ROLLBACK WORK. Otherwise, this command is fully conforming.
SEE ALSO
BEGIN [begin(7)], COMMIT [commit(7)], ROLLBACK TO SAVEPOINT [rollback_to_savepoint(7)]
SQL - Language Statements 2010-05-14 ROLLBACK(7)