10-23-2014
Is this a homework assignment?
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1. Shell Programming and Scripting
i have a file in unix in which the records are like this
aaa 123 233
aaa 234 222
aaa 242 222
bbb 122 111
bbb 122 123
ccc 124 222
In the output i want only the below records
aaa
ccc
The validation logic is 1st column and 2nd column need to be considered
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2. Shell Programming and Scripting
i get text files with
Action & Adventure|2012: Supernova NR|2009-11-01 00:01:00|2010-05-01 23:59:00|Active|3
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Action & Adventure|Afterwards|2009-11-26 00:01:00|2010-03-26 23:59:00|Deactivated|6
Based... (3 Replies)
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3. UNIX for Dummies Questions & Answers
Hii Friends.. I have a huge set of data stored in a file.Which is as shown below
a.dat:
RAO 1869 12 19 0 0 0.00 17.9000 82.3000 10.0 0 0.00 0 3.70 0.00 0.00 0 0.00 3.70 4 NULL
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4. Shell Programming and Scripting
Hi All,
I have a file which looks like this:
234422 1 .00222
323232 1 3232
32323 1 0.00222
1234 2 1211
2332 2 0.9
233 3 0.883
123 3 45
As you can see, the second column of the file is already sorted which I did using sort command.
Now, I want to create files based on the second... (1 Reply)
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5. Shell Programming and Scripting
Hi I have a difficulty in writing shell script for performing the tasks.
A B C D
12 230 16 259
18 260 23 283
21 291 36 298
41 309 49 420
52 425 57 450
61 456 70 473
72 475 79 486
If the A(row no.2) < C(row no.1) then delete value A(row no.1) and so on...
For... (8 Replies)
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6. Shell Programming and Scripting
Hi All,
I have a file with 3 millions records in which 3rd column is same throughout say its value is 0 throughout.for example:
Col1 Col2 Col3 Col4
A 1 0 5
B 2 0 6
C 3 0 7
D 4 0 9
I want my output as :
Col1 Col2 Col3 Col4
A 1 ... (4 Replies)
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7. Shell Programming and Scripting
I need to split the file
Conditions:
Ignore any record that either starts with 1 or 9
Split the file at position 404 , if position 404 is abc or def then write all the records in a file > File 1 , the remaining records should go in to a file > File 2
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8. Shell Programming and Scripting
Can anyone please assist?
I have a .txt file(File1.txt) and a property file(propertyfile.txt) . I have to read the vales from the property file and .txt file and create the output file(outputfile.txt) mentioned in the attachment. For each record in .txt file,the below mentioned values shall be... (20 Replies)
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9. Shell Programming and Scripting
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Requirement :
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10. Shell Programming and Scripting
I am trying to use awk to update the below tab-delimited file based on 5 different rules/conditions. The final output is also
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Condition 1: The... (10 Replies)
Discussion started by: cmccabe
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LEARN ABOUT SUNOS
readonly
readonly(1) User Commands readonly(1)
NAME
readonly - shell built-in function to protect the value of the given variable from reassignment
SYNOPSIS
sh
readonly [name...]
ksh
**readonly [ name [ = value]...]
**readonly -p
DESCRIPTION
sh
The given names are marked readonly and the values of the these names may not be changed by subsequent assignment. If no arguments are
given, a list of all readonly names is printed.
ksh
The given names are marked readonly and these names cannot be changed by subsequent assignment.
When -p is specified, readonly writes to the standard output the names and values of all read-only variables, in the following format:
"readonly %s=%s
", name, value
if name is set, and:
"readonly $s
", name
if name is unset.
The shell formats the output, including the proper use of quoting, so that it is suitable for reinput to the shell as commands that achieve
the same value and readonly attribute-setting results in a shell execution environment in which:
1. Variables with values set at the time they were output do not have the readonly attribute set.
2. Variables that were unset at the time they were output do not have a value at the time at which the saved output is reinput to the
shell.
On this man page, ksh(1) commands that are preceded by one or two ** (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
ksh(1), sh(1), typeset(1), attributes(5)
SunOS 5.10 17 Jul 2002 readonly(1)