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Top Forums UNIX for Beginners Questions & Answers How to use sed to insert character in the beginning of file path? Post 303039318 by RudiC on Monday 30th of September 2019 05:41:40 PM
Old 09-30-2019
Did you read and understand my quote from info sed?
Quote:
The '/' characters may be uniformly replaced by any other single character within any given 's' command. The '/' character (or whatever other character is used in its stead) can appear in the REGEXP or REPLACEMENT only if it is preceded by a '\' character.
So my command reads
Code:
s#pattern#replacement#

as the / is part of both pattern and replacement. The delimiter or separator is #, the pattern is /, and the replacement is /bck1/.
 

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MB_EREG_REPLACE(3)							 1							MB_EREG_REPLACE(3)

mb_ereg_replace - Replace regular expression with multibyte support

SYNOPSIS
string mb_ereg_replace (string $pattern, string $replacement, string $string, [string $option = "msr"]) DESCRIPTION
Scans $string for matches to $pattern, then replaces the matched text with $replacement PARAMETERS
o $pattern - The regular expression pattern. Multibyte characters may be used in $pattern. o $replacement - The replacement text. o $string - The string being checked. o $option - Matching condition can be set by $option parameter. If i is specified for this parameter, the case will be ignored. If x is specified, white space will be ignored. If m is specified, match will be executed in multiline mode and line break will be included in '.'. If p is specified, match will be executed in POSIX mode, line break will be considered as normal character. If e is specified, $replacement string will be evaluated as PHP expression. RETURN VALUES
The resultant string on success, or FALSE on error. NOTES
Note The internal encoding or the character encoding specified by mb_regex_encoding(3) will be used as the character encoding for this function. Warning Never use the e modifier when working on untrusted input. No automatic escaping will happen (as known from preg_replace(3)). Not taking care of this will most likely create remote code execution vulnerabilities in your application. SEE ALSO
mb_regex_encoding(3), mb_eregi_replace(3). PHP Documentation Group MB_EREG_REPLACE(3)
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