Hi ,
i export the crontab in a file (i've no root right) and i would add lines from a file at a special place and rewrite the output in an another file.
the special place is as this :
45 04 * * * /home/toto.sh > /dev/null 2>&1
#
so i would search for toto.sh and insert the lines , the... (5 Replies)
Hi all,
I want to insert a string in a specified place of a very large file. I am giving an example of the task:
I love football.
Above is a sentence in a file and I want to insert a string "the" between love and football. It is not sure that where this particular line exists. It has to... (4 Replies)
Hi,
I have a source file as mentioned below: I want to remove all the extra spaces between the fields.
a b--------|sa df-------|3232---|3
sf sa------|afs sdf-----|43-----|33
a b c------|adfsa dsf---|23-32|23
*Here '-' idicates spaces
Now, I want output as below:
a b|sa df|3232|3... (7 Replies)
Hi,
I have a log file generated by a tool which has the following look :
/tmp/releases/directory/datefilename1_release_date.zip
/tmp/releases/directory/datefilename2_release_date.zip
/tmp/releases/directory/datefilename3_release_date.zip... (8 Replies)
Hi all,
I have a file in which I have to insert commna between entries of 2 column and createa new file separated by commas not a columns
if input is
FHIT Adenosine Monotungstate Not Available
CS Trifluoroacetonyl Coenzyme A Not Available
Theo expected output is
... (5 Replies)
Hi
I tried to put underscore in place of column in a big file with lots of oclumns using the programm
sed 's//_/g'
Its showing error
bash-3.2$ sed 's//_/g'saradrugbankgenedrugnewlist.txt >saradrugbankgenedrugnewlist3.txt
sed: -e expression #1, char 11: unknown option to `s'
if... (24 Replies)
Hi Folks,
I have a huge data of the below format
abc #apple 1200 06/23
ghj #orange 1500 06/27
uyt #banana 2300 05/13
efg #vegetable 0700 04/16
After first 3 letters, i have 9 spaces and after fruit there are no specific fixed space, but it varies... (4 Replies)
Hi All,
I want to keep the name of the songs with their respective extensions only.
Sample Code
========
03 Choti choti gaiya choti choti gaval.mp3
03---Brazil Dhol.mp3
03 PAYALIYA .mp3
04 - Isq Risk .mp3
04%20-%20Oh%20My%20Love(wapking.in).mp3
08 - A2 - Aasan Nahin Yahan .mp3
AE... (3 Replies)
hello
i have file with 100k records and each one has certain value that starts at 28th column and certain value that starts at 88th column
e.g. 1st file
<25>1234567 ..... <88> 8573785485
i have aditional file with values which are related to value that starts at 88th column of the... (1 Reply)
Hello,
I have an xml file and my aim is to grab each line in keywords file and search the string in another file.
When keyword is found in xml file,I expect the script to go to previous line in the xml file and grab the string/value between two strings. It's almost working with an error.
tab... (6 Replies)
Discussion started by: baris35
6 Replies
LEARN ABOUT DEBIAN
drop_table
DROP TABLE(7) SQL Commands DROP TABLE(7)NAME
DROP TABLE - remove a table
SYNOPSIS
DROP TABLE [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ]
DESCRIPTION
DROP TABLE removes tables from the database. Only its owner can drop a table. To empty a table of rows without destroying the table, use
DELETE [delete(7)] or TRUNCATE [truncate(7)].
DROP TABLE always removes any indexes, rules, triggers, and constraints that exist for the target table. However, to drop a table that is
referenced by a view or a foreign-key constraint of another table, CASCADE must be specified. (CASCADE will remove a dependent view
entirely, but in the foreign-key case it will only remove the foreign-key constraint, not the other table entirely.)
PARAMETERS
IF EXISTS
Do not throw an error if the table does not exist. A notice is issued in this case.
name The name (optionally schema-qualified) of the table to drop.
CASCADE
Automatically drop objects that depend on the table (such as views).
RESTRICT
Refuse to drop the table if any objects depend on it. This is the default.
EXAMPLES
To destroy two tables, films and distributors:
DROP TABLE films, distributors;
COMPATIBILITY
This command conforms to the SQL standard, except that the standard only allows one table to be dropped per command, and apart from the IF
EXISTS option, which is a PostgreSQL extension.
SEE ALSO
ALTER TABLE [alter_table(7)], CREATE TABLE [create_table(7)]
SQL - Language Statements 2010-05-14 DROP TABLE(7)