10-27-2008
The size of the file will change, and '34' is only an example. The id may be different.
Thanks,
- CB
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1. Shell Programming and Scripting
HI all
I have a problem, I need to replace a field in a file, but only in the lines that have some pattern, example:
100099C01101C00000000059394200701CREoperadora_TX
100099C01201C00000000000099786137OPERADORA_TX2
in the example above I need to change the first field from 1 to 2 only if... (3 Replies)
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2. Shell Programming and Scripting
I got a sample file like this.
$ cat test
12|13|100|s
12|13|100|s
100|13|100|s
12|13|100|s
I want to replace all 100 by 2000 only in 3rd field using "awk"
This is replacing all 100's :-(
$ awk -F "|" '{gsub( /100/,"2000");print}' test
12|13|2000|s
12|13|2000|s
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3. Shell Programming and Scripting
Hi all,
I have a huge file and I need to get ride of the fields 6-11 and replace the blanks in field 5 with a missing value(99999).
159,93848,5354,343,67898,45,677,5443,434,5545,45
677,45545,3522,244,
554,54344,3342,456,
344,43443,2344,444,23477... (12 Replies)
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4. Shell Programming and Scripting
Hello All,
I have a file with contents like
apple|ball|charlie|David|
England|France|Germany|
Ireland|Japan|King|London|
Man|Nancy|Orange|
here the column delimiter is |
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5. Shell Programming and Scripting
i have something like this,
cat filename.txt
hui this si s"dfgdfg" omeone ipaddress="10.19.123.104" wel hope this works
i want to replace only 10.19.123.104 with different ip say 10.19.123.103
i tried this
sed -i "s/'ipaddress'/'ipaddress=10.19.123.103'/g" filename.txt
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6. Shell Programming and Scripting
Hi Everyone,
I have a file as below:
IM2345638,sherfvf,usha,30
IM384940374,deiufbd,usha,30
IM323763822,cdejdkdnbds,theju,15
0,dhejdncbfd,us,20
IM398202038,dhekjdkdld,tj,30
0,foifsjd,u2,40
The output i need is as below
IM2345638,sherfvf,usha,30... (4 Replies)
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7. Shell Programming and Scripting
hi,
i having a file with | seperated in which i need to search char in 3rd column and replace with null. i need to replace only the coulmn where character occurs in 3rd field
for eg:
file1.txt
xx|yy|xx|12
output file:
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8. Shell Programming and Scripting
Hi All,
i have a file like
col1 col2 col3
13 24 NA
12 13 14
11 12 13
14 22 NA
18 26 NA
in this file if i found "NA" other values in the line are also replace by NA
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9. Shell Programming and Scripting
hai guys,
pick the 1st field and calculate max length.
if suppose max length is 2,
then compare the all records if <2 then add zero's prefix of the record.
for ex:
s.no,sname
1,djud
37,jtuhe
in this max length of the 1st field is 2 right
the output wil be
s.no,sname
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LEARN ABOUT REDHAT
tie::substrhash
Tie::SubstrHash(3pm) Perl Programmers Reference Guide Tie::SubstrHash(3pm)
NAME
Tie::SubstrHash - Fixed-table-size, fixed-key-length hashing
SYNOPSIS
require Tie::SubstrHash;
tie %myhash, 'Tie::SubstrHash', $key_len, $value_len, $table_size;
DESCRIPTION
The Tie::SubstrHash package provides a hash-table-like interface to an array of determinate size, with constant key size and record size.
Upon tying a new hash to this package, the developer must specify the size of the keys that will be used, the size of the value fields that
the keys will index, and the size of the overall table (in terms of key-value pairs, not size in hard memory). These values will not change
for the duration of the tied hash. The newly-allocated hash table may now have data stored and retrieved. Efforts to store more than $ta-
ble_size elements will result in a fatal error, as will efforts to store a value not exactly $value_len characters in length, or reference
through a key not exactly $key_len characters in length. While these constraints may seem excessive, the result is a hash table using much
less internal memory than an equivalent freely-allocated hash table.
CAVEATS
Because the current implementation uses the table and key sizes for the hashing algorithm, there is no means by which to dynamically change
the value of any of the initialization parameters.
The hash does not support exists().
perl v5.8.0 2002-06-01 Tie::SubstrHash(3pm)