May I jump in as Don seems offline for a while now?'
sed operates on files line by line, it reads a line, performs the entire script on it, and reads the next. * is not "all lines" but a sort of mutiplier for the preceding "atom" (man regex).
On Unix, it is easy to get those lines that match a pattern, by
grep pattern file
or those lines that do not, by
grep -v pattern file
but I am editing a file on Windows with Ultraedit.
Ultraedit support regular expression based search and replace.
I can delete all the lines that match a... (1 Reply)
Hi all,
I have the following data in a file x.csv:
> ,this is some text here
> ,,,,,,,,,,,,,,,,2006/11/16,0.23
> ,,,,,,,,,,,,,,,,2006/12/16,0.88
< ,,,,,,,,,,,,,,,,this shouldnt be deleted
I need to use SED to match anything with a > in the line and delete that line, can someone help... (7 Replies)
Hi there,
I need help about using sed. Iam using sed to delete and print lines that match the port number as listed in sedfile. I am using -d and -p command for delete match port and print them respectively. However, the output is not synchonize where the total deleted lines is not similar with... (3 Replies)
hi,
i am parsing a file, in that searching for lines those contains "$threadNo.Received message:" , if that line contains the required fields write them into a separate file other wise ignore them.
i am using the following code,but it is printing all the lines , i dont want to rpint , please help... (3 Replies)
Hi,
Here is my pattern
CREATE USER LZ
IDENTIFIED BY VALUES 'A0144280ESD70'
DEFAULT TABLESPACE USERS
TEMPORARY TABLESPACE TEMP1 PROFILE DEVELOPER_D_1
ACCOUNT UNLOCK
/
The Sed command must look for the Line that contains TEMPORARY TABLESPACE and replace the immediate word... (4 Replies)
Hi All,
I have almost 1000+ files and I want to search specific pattern. Looking forwarded your input.
Search for: word1.word2 (Which procedure contain this word, I need procedure name in output.
Expected output:
procedure test1
procedure test2
procedure test3
procedure test4
... (7 Replies)
i have a file like below. how can i printout the digits followed by the pattern -bwout and -bwin. say i run the script by entering line number 145 (the fourth line), then the o/p should be like
5000000 1024000
8 test1 -ipprot erp -ppsout 500 -ppsin 500 -bwout 300000 -bwin 300000 -statsdevice... (7 Replies)
I have a shell script which I made with the help of this forum
#!/bin/sh
RuleNum=$1
cat bw_rules | sed 's/^.*-x //' | awk -v var=$RuleNum '$1==var {for(i=1;i<=NF;i++) {if($i=="-bwout") print $(i+3),$(i+1)}}'
Basically I have a pages after pages of bandwidth rules and the script gives... (0 Replies)
Hi
Im trying to do the following in sed. I want to delete any blank line at the start of a file until it matches a pattern and then stops. for example:
Input
output:
I have got it to work within a range of two patterns with the following:
sed '/1/,/pattern/{/^]*$/d}'
The... (2 Replies)
Ive used this snippet of code on a solaris box thousands of times.
But it isnt working on the new linux box
sed -n '/interface LoopBack0/{N;/ ip address /p;}' *.conf
its driving me nuts !!
Is there something Im missing ? (7 Replies)
Discussion started by: popeye
7 Replies
LEARN ABOUT LINUX
re_comp
RE_COMP(3) Linux Programmer's Manual RE_COMP(3)NAME
re_comp, re_exec - BSD regex functions
SYNOPSIS
#define _REGEX_RE_COMP
#include <sys/types.h>
#include <regex.h>
char *re_comp(char *regex);
int re_exec(char *string);
DESCRIPTION
re_comp() is used to compile the null-terminated regular expression pointed to by regex. The compiled pattern occupies a static area, the
pattern buffer, which is overwritten by subsequent use of re_comp(). If regex is NULL, no operation is performed and the pattern buffer's
contents are not altered.
re_exec() is used to assess whether the null-terminated string pointed to by string matches the previously compiled regex.
RETURN VALUE
re_comp() returns NULL on successful compilation of regex otherwise it returns a pointer to an appropriate error message.
re_exec() returns 1 for a successful match, zero for failure.
CONFORMING TO
4.3BSD.
NOTES
These functions are obsolete; the functions documented in regcomp(3) should be used instead.
SEE ALSO regcomp(3), regex(7), GNU regex manual
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 1995-07-14 RE_COMP(3)