because dot has a special meaning when interpreted as a regular expression it means 'any single character' so it needs to be "escaped" using the backslash
Hello
im trying to redirect the standard output into txt file but with combination of string
if I do :
date >! foo.txt
there is no problem and im getting the date into the foo.txt
but what should I do if I like to add string in the same command so the result will be in the txt : The date... (2 Replies)
Hello,
I am trying to replace a string with a paramter given along with the script.
I am replacing application1 to application2 with the script:
./change_app.sh application2
change_app.sh:
#!/bin/ksh
grep $1 applications.dat 2>&1 >/dev/null
echo $1
file=pckage.new
sed 's/Name:... (5 Replies)
Hi all,
I need to replace string in XML file..XML file like
<dependency>
<groupId>fr.orange.portail.ear</groupId>
<artifactId>_AdminServicesEAR</artifactId>
<version>1.0.0-20080521.085352-1</version>
<type>ear</type>
</dependency>
<dependency>
... (2 Replies)
Hi there,
I have a paramater file that looks like this :-
IRL|07122005|27389|VTIEpay|email address|5|200
When my program finishes I want to replace the seventh field. the existing code is like this
cat <<-EOF | ed -s $PARFILE
1,$ g/^$ICO/s/$prvdate/$TODAY/
1,$... (13 Replies)
Hi,
I need to convert tab delimiter to #*# in txt file.
Does anybody know how to do it?
If i'm using: tr -s '\t' '#*#' < name.txt > name_new.txt
It converts only to #, but I need 3 chars.
Thanks a lot. (2 Replies)
I have following set of dirs:
/dir1/dir2/subdir1
file1
file2
/dir1/dir3/subdir1
file4
file5
/dir1/dir4/subdir1
file6
file7
All of these files have a common string in them say "STRING1", How can I... (3 Replies)
Hi All,
I am facing an issue... I need to replace some string in a text file while the same file is read by some other user at the same time. The other user is using it in the Read only mode. So I can't create a temporary file and write the content first and then write it back into the original... (2 Replies)
I want to replace string values from a file to a file
For eg : File1 has 30 lines of string with values, those specific values needs to be changed in file2 and remaining values in file2 should be as it is.
For example:
From file (File1)
cluster.name=secondaryCluster
To replace File... (9 Replies)
I need to replace all filesnames in a folder as well as its content from AK6 to AK11. Eg Folder has files AK6-Create.xml, AK6-system.py etc.. the files names as well as contents should be changes to AK9-Create.xml, AK9-system.py etc
All files are xml and python scripts.
---------- Post... (0 Replies)
Discussion started by: Candid247
0 Replies
LEARN ABOUT PLAN9
regexp
REGEXP(6) Games Manual REGEXP(6)NAME
regexp - regular expression notation
DESCRIPTION
A regular expression specifies a set of strings of characters. A member of this set of strings is said to be matched by the regular
expression. In many applications a delimiter character, commonly bounds a regular expression. In the following specification for regular
expressions the word `character' means any character (rune) but newline.
The syntax for a regular expression e0 is
e3: literal | charclass | '.' | '^' | '$' | '(' e0 ')'
e2: e3
| e2 REP
REP: '*' | '+' | '?'
e1: e2
| e1 e2
e0: e1
| e0 '|' e1
A literal is any non-metacharacter, or a metacharacter (one of .*+?[]()|^$), or the delimiter preceded by
A charclass is a nonempty string s bracketed [s] (or [^s]); it matches any character in (or not in) s. A negated character class never
matches newline. A substring a-b, with a and b in ascending order, stands for the inclusive range of characters between a and b. In s,
the metacharacters an initial and the regular expression delimiter must be preceded by a other metacharacters have no special meaning and
may appear unescaped.
A matches any character.
A matches the beginning of a line; matches the end of the line.
The REP operators match zero or more (*), one or more (+), zero or one (?), instances respectively of the preceding regular expression e2.
A concatenated regular expression, e1e2, matches a match to e1 followed by a match to e2.
An alternative regular expression, e0|e1, matches either a match to e0 or a match to e1.
A match to any part of a regular expression extends as far as possible without preventing a match to the remainder of the regular expres-
sion.
SEE ALSO awk(1), ed(1), sam(1), sed(1), regexp(2)REGEXP(6)