06-30-2005
Reading specific part of file
I have a requirement to go to particular line in the file and from there read the contents till it meets a particular criteria. For eg if the contents of the file is like
81 abcd ------------------- Line 1
82 cdfe ------------------- Line 2
83 dfj ------------------- Line 3
84 df ------------------- Line 4
81 dkfh ------------------- Line 5
82 df ------------------- Line 6
83 dlf ------------------- Line 7
84 dif ------------------- Line 8
81 sdfh ------------------- Line 9
82 dfjh ------------------- Line 10
83 kdf ------------------- Line 11
84 dfj ------------------- Line 12
What the program should do is go to line number 5 directly and from there read the contents of the file till it finds the line starting with 81 again.
TIA
Narayana Gupta
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi all...
I not a expert unix script programmer, Kindly adjust.
My requirement is that, i have a file which contains the about 10 lines -
say
1
2
3
...
8 war of the worlds: => text in this line
9 9000,80,78,77,334,445 => this line contains some numbers separted by commas
10
... (10 Replies)
Discussion started by: cool_boss2121
10 Replies
2. Shell Programming and Scripting
hello,
I have got the following problem that I am hoping someone can help with please.
1. I have got the following text file (below) , the columns data are
'Test Day', 'Board', 'Betting Number'.
TEXT FILE
============================================
1 3 02-01-27-28-29-30
0 1... (1 Reply)
Discussion started by: jermaine4ever
1 Replies
3. Shell Programming and Scripting
Hello,
I have a problem which is giving me headache for days, can some please help. Please see code and text fiel below. Please see text in red for the problem I am facing
# Program gets an input x from user
while read line ; do
echo... (4 Replies)
Discussion started by: jermaine4ever
4 Replies
4. UNIX and Linux Applications
Hi
I have a script where the user calls it with arguments like so:
./import.sh -s DNSNAME -d DBNAME
I want to check that the database entered is valid by going through a passwd.ds file and checking if the database exists there.
If it doesn't, the I need to send a message to my log... (4 Replies)
Discussion started by: ladyAnne
4 Replies
5. UNIX for Dummies Questions & Answers
Hi All,
I am having 100 lines a text file say a.txt. I want read the 'nth' line from that file inside a script. Kindly tell us how to that. (2 Replies)
Discussion started by: boopathyvasagam
2 Replies
6. Shell Programming and Scripting
Hello,
I am trying to read from a file using PERL:confused, however i need to read specific portions of the file
the file goes like this
<Name 1
Hono
<Name 2
Jack
and so on
anyways i need to be able to write a program that ONLY opens the lines beginning with "<"? so it would... (2 Replies)
Discussion started by: UNDstudent
2 Replies
7. UNIX for Dummies Questions & Answers
Hello
I want to read from a file which contains email addresses.
The file format is like this.
from@mail.com
to1@mail.com
to2@mail.com
cc@mail.com
bcc@mail.com
I'll have to read from such file and assign the email addresses to respective variables.
frommail =... (11 Replies)
Discussion started by: Kyaw Lwin Phyo
11 Replies
8. Shell Programming and Scripting
Hi,
I have 80 large files, from which I want to get a specific value to run a Bash script. Firstly, I want to get the part of a file which contains this:
Name =A
xxxxxx
yyyyyy
zzzzzz
aaaaaa
bbbbbb
Value = 57
This is necessary because in a file there are written more lines which... (6 Replies)
Discussion started by: wenclu
6 Replies
9. Shell Programming and Scripting
Hi All,
I want to read an excel file.
PFA excel, I want to read the cloumn from A to G and the V to AH
starting from Row number 3.
Please help me on this. (7 Replies)
Discussion started by: Abhisrajput
7 Replies
10. Shell Programming and Scripting
Hello Folks,
I have an requirement, where i need to get total count of the file based on creation date with there filename selected pattern.
Filename: MobileProtocol.20171228T154200.157115.udr
I want to get the count of files created on each day based on a pattern find.
find . -type... (7 Replies)
Discussion started by: sadique.manzar
7 Replies
getdev(1M) System Administration Commands getdev(1M)
NAME
getdev - lists devices based on criteria
SYNOPSIS
getdev [-ae] [criteria...] [device...]
DESCRIPTION
getdev generates a list of devices that match certain criteria. The criteria includes a list of attributes (given in expressions) and a
list of devices. If no criteria are given, all devices are included in the list.
Devices must satisfy at least one of the criteria in the list unless the -a option is used. Then, only those devices which match all of
the criteria in a list will be included.
Devices which are defined on the command line and which match the criteria are included in the generated list. However, if the -e option is
used, the list becomes a set of devices to be excluded from the list. See OPTIONS and OPERANDS.
OPTIONS
The following options are supported:
-a Specifies that a device must match all criteria to be included in the list generated by this command. The option has no effect if
no criteria are defined.
-e Specifies that the list of devices which follows on the command line should be excluded from the list generated by this command.
Without the -e the named devices are included in the generated list. The flag has no effect if no devices are defined.
OPERANDS
The following operands are supported:
criteria Defines the criteria that a device must match to be included in the generated list. criteria is specified by expressions.
There are four possible expression types which the criteria specified in the criteria argument may follow:
attribute=value Selects all devices whose attribute attribute is defined and is equal to value.
attribute!=value Selects all devices whose attribute attribute is defined and does not equal value.
attribute:* Selects all devices which have the attribute attribute defined.
attribute!:* Selects all devices which do not have the attribute attribute defined.
See the putdev(1M) manual page for a complete listing and description of available attributes.
device Defines the devices which should be included in the generated list. This can be the pathname of the device or the device
alias.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
1 Command syntax was incorrect, invalid option was used, or an internal error occurred.
2 Device table could not be opened for reading.
FILES
/etc/device.tab
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
devattr(1M), getdgrp(1M), putdev(1M), putdgrp(1M), attributes(5)
SunOS 5.10 5 Jul 1990 getdev(1M)