10-27-2003
maybe it is hard to work only used sed or tr
but you cant do it both used sed and tr
for example :you can used sed to add a special char before "DH" then used tr to replace the special char by \n
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1. Shell Programming and Scripting
Plzzzz, tell me some script about this...
What does this mean ?
sed '/^ */s///'
sed '/^/s// /'
and why it's diferent ???
sed '/ */s// /g' and sed 's/ */ /g'. It's all the same ???
Thanks you very much (2 Replies)
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2. UNIX for Dummies Questions & Answers
Hello Folks,
Anyone know how I can replace this line in file.xml
<oacore_nprocs oa_var="s_oacore_nprocs">8</oacore_nprocs>
with this line
<oacore_nprocs oa_var="s_oacore_nprocs">1</oacore_nprocs>
using sed or awk ?
Thanks for your time.
Cheers,
Dave (7 Replies)
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Is there a way to use the sed command to
1) search a specified pattern
2) in the line where that pattern is found, replace from character N to character N+4 with a new 4-character string.
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Hello,
I am hoping someone can provide some guidance on using context based search and replace to search for a pattern and then do a search and replace in the line that follows it. For example, I have a file that looks like this:
<bold>bold text
</italic>
somecontent
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5. Shell Programming and Scripting
hi,
im new for sed, anyone can help me to these in sed command
my output file.txt
"aaa",a1,bbb
"ddd",a1,ccc
"eee",a1,www
need to change a1, to "a1","
output i need
"aaa","a1","bbb
"ddd","a1","ccc
"eee","a1","www
thanks in advance
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Hello -
I have a very large file in which a certain numbers are repeated. I find that using vi to edit the entire file is useless.
How should i use sed to find a replace such as this text:
To replace: 145.D25.D558
With: 215.22.45.DW
I tried this command:
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Hi everyone,
basically I am been cleaning data by using simple sed commands
So what i have below has been working for me.
sed 's/="//g' trade.csv > tradeb.csv
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Hi All
I have a simple text file and I want to be able to replace any alpha character and comma combination with any other symbol of my choice
here is the text file I want to replace:
pear
apple
ban,ana
grape
",g1234,"
te,st1
here is how it should look afterwards:
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Hi guys, thanks for accepting me in your forum .. I am trying to clean some hacked PHP files using SSH .. I am using this command:
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Hi,
Basically , i search for a string ( from variable) in a input file , if line found then search a string called "STRING" and replace with text (from another variable ). I cant avoid # delimiter due to esc sequences.
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LEARN ABOUT PHP
str_replace
STR_REPLACE(3) 1 STR_REPLACE(3)
str_replace - Replace all occurrences of the search string with the replacement string
SYNOPSIS
mixed str_replace (mixed $search, mixed $replace, mixed $subject, [int &$count])
DESCRIPTION
This function returns a string or an array with all occurrences of $search in $subject replaced with the given $replace value.
If you don't need fancy replacing rules (like regular expressions), you should always use this function instead of preg_replace(3).
PARAMETERS
If $search and $replace are arrays, then str_replace(3) takes a value from each array and uses them to search and replace on $subject. If
$replace has fewer values than $search, then an empty string is used for the rest of replacement values. If $search is an array and
$replace is a string, then this replacement string is used for every value of $search. The converse would not make sense, though.
If $search or $replace are arrays, their elements are processed first to last.
o $search
- The value being searched for, otherwise known as the needle. An array may be used to designate multiple needles.
o $replace
- The replacement value that replaces found $search values. An array may be used to designate multiple replacements.
o $subject
- The string or array being searched and replaced on, otherwise known as the haystack. If $subject is an array, then the search
and replace is performed with every entry of $subject, and the return value is an array as well.
o $count
- If passed, this will be set to the number of replacements performed.
RETURN VALUES
This function returns a string or an array with the replaced values.
EXAMPLES
Example #1
Basic str_replace(3) examples
<?php
// Provides: <body text='black'>
$bodytag = str_replace("%body%", "black", "<body text='%body%'>");
// Provides: Hll Wrld f PHP
$vowels = array("a", "e", "i", "o", "u", "A", "E", "I", "O", "U");
$onlyconsonants = str_replace($vowels, "", "Hello World of PHP");
// Provides: You should eat pizza, beer, and ice cream every day
$phrase = "You should eat fruits, vegetables, and fiber every day.";
$healthy = array("fruits", "vegetables", "fiber");
$yummy = array("pizza", "beer", "ice cream");
$newphrase = str_replace($healthy, $yummy, $phrase);
// Provides: 2
$str = str_replace("ll", "", "good golly miss molly!", $count);
echo $count;
?>
Example #2
Examples of potential str_replace(3) gotchas
<?php
// Order of replacement
$str = "Line 1
Line 2
Line 3
Line 4
";
$order = array("
", "
", "
");
$replace = '<br />';
// Processes
's first so they aren't converted twice.
$newstr = str_replace($order, $replace, $str);
// Outputs F because A is replaced with B, then B is replaced with C, and so on...
// Finally E is replaced with F, because of left to right replacements.
$search = array('A', 'B', 'C', 'D', 'E');
$replace = array('B', 'C', 'D', 'E', 'F');
$subject = 'A';
echo str_replace($search, $replace, $subject);
// Outputs: apearpearle pear
// For the same reason mentioned above
$letters = array('a', 'p');
$fruit = array('apple', 'pear');
$text = 'a p';
$output = str_replace($letters, $fruit, $text);
echo $output;
?>
NOTES
Note
This function is binary-safe.
Caution
Replacement order gotcha
Because str_replace(3) replaces left to right, it might replace a previously inserted value when doing multiple replacements. See
also the examples in this document.
Note
This function is case-sensitive. Use str_ireplace(3) for case-insensitive replace.
SEE ALSO
str_ireplace(3), substr_replace(3), preg_replace(3), strtr(3).
PHP Documentation Group STR_REPLACE(3)