There is a service that runs that we call multi-streaming that calls a shell script multiple times simultaneously. In this shell script is the following line:
tr '\r' '\n' < $POLLFILE.OUT | sed '/0000000000000016000A/d' > $POLLFILE
When I run this manually it produces the desired results, but... (6 Replies)
how to use sed command to find and replace a directory
i have a file.. which contains lot of paths ...
for eg.. file contains..
/usr/kk/rr/12345/1
/usr/kk/rr/12345/2
/usr/kk/rr/12345/3
/usr/kk/rr/12345/4
/usr/kk/rr/12345/5
/usr/kk/rr/12345/6
/usr/kk/rr/12345/7... (1 Reply)
Hi Everyone
i have a perl file below, one of the line is convert the pcho time to human readable format.
$value=`awk 'BEGIN{print strftime("%c",1273236600)}' | tr -d '\n'`;
if image, if i have lots of pcho time value in a file, if i use this awk, strftime, then tr -d to remove the \n,... (2 Replies)
Hi
I have a problem when i use awk or sed to replace characters in file.
For example when I want to replace line like this :
00000O120100512 1.70 1.59 0.00 +7.280
I want to get a new line :
0000000O120100512 1.70 1.59 13.56 +7.280
In ksh :
awk... (1 Reply)
Hi
I know sed and awk has options to give range of line numbers, but
I need to replace pattern in specific lines
Something like
sed -e '1s,14s,26s/pattern/new pattern/' file name
Can somebody help me in this....
I am fine with see/awk/perl
Thank you in advance (9 Replies)
Hi,
Need a help to replace a word if a pattern is found between the delimiters preferably using SED or AWK.
below is the sample file that iam dealing with, need to match pattern 'application' if found replace the whole word between the delimiters and also print the lines that don't match.... (1 Reply)
Discussion started by: tech_frk
1 Replies
LEARN ABOUT PLAN9
regexp
REGEXP(6) Games Manual REGEXP(6)NAME
regexp - regular expression notation
DESCRIPTION
A regular expression specifies a set of strings of characters. A member of this set of strings is said to be matched by the regular
expression. In many applications a delimiter character, commonly bounds a regular expression. In the following specification for regular
expressions the word `character' means any character (rune) but newline.
The syntax for a regular expression e0 is
e3: literal | charclass | '.' | '^' | '$' | '(' 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)