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Full Discussion: String Replacement with Perl
Top Forums Shell Programming and Scripting String Replacement with Perl Post 302091174 by Glenn Arndt on Friday 29th of September 2006 01:58:20 PM
Old 09-29-2006
Woops, my mistake. Try:
Code:
perl -pi -e 's/^#*ES=PR1A/ES=PR1A/1' filename

In any case, what I'm getting at is that with sed, you could do
Code:
echo "#abc
###abc
##abc" | sed 's/^#*abc/abc/1'

 

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NAMESPACE(6)							   Games Manual 						      NAMESPACE(6)

NAME
namespace - name space description file DESCRIPTION
Namespace files describe how to construct a name space from scratch, an operation normally performed by the newns subroutine (see auth(2)) which is typically called by init(8). Each line specifies one name space operation. Spaces and tabs separate arguments to operations; no quotes or escapes are recognized. Blank lines and lines with # as the first non-space character are ignored. Environment variables of the form $name are expanded within arguments, where name is a UTF string terminated by white space, a /, or a $. The known operations and their arguments are: mount [-abc] servename old [spec] Mount servename on old. bind [-abc] new old Bind new on old. import [-abc] host "[remotepath]mountpoint Import remotepath from machine server and attach it to mountpoint. cd dir Change the working directory to dir. The options for bind, mount, and import are interpreted as in bind(1) and import(4). SEE ALSO
bind(1), namespace(4), init(8) NAMESPACE(6)
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