How to extract a portion of a string from a full string using unix.
For example:
Say source string is = "req92374923.log"
I want only the numeric portion of the string say "92374923" how to do that in Unix. (2 Replies)
hello,
I want to grep the log file according to time and get the portion of log from one particular time to other.
I can grep for individual lines by time but how should I print lines continuously from given start time till end till given end time.
Appreciate your ideas,
Thanks
chandra (8 Replies)
Hi,
I have a file where there is a date field (single line variable length file)
how to extract just the date portion from it
the position of date field may vary anywhere in the line
but will always have the format mm-dd-yyyy
for eg .
xxxxxxxxxxxxxxx09-10-2006xxxxxxxxxxxxxxxxxxxx (5 Replies)
I am using Unix on Mac OS X 10.5.6.
I am trying to extract the last entry of a log (text) file. As seen below, each log entry looks like the following (date and time change with each log entry):
I want the script to extract everything quoted above, including the "===" dividers.
... (2 Replies)
Hi All
I have 3 files as listed below and highlighted in bold the portions of the filenames I need to extract:
TOS_TABIN218_20090323.200903231830
TOS_TABIN219_1_20090323.200903231830
TOS_TABIN219_2_20090323.200903231830
I tried
source_tabin_name=`echo $fname | sed 's/_.*//'`
but I... (6 Replies)
Hi All,
I posted something similar before but I now have a another problem.
I have filenames as below
TOP_TABIN240_20090323.200903231830
TOP_TABIN235_1_20090323.200903231830
i need to extract the dates as in bold. Using bash v 3.xx
Im trying to using the print sed command but... (11 Replies)
Can some one help me with shell script to extract a text block between two known strings.
The given input file is as below:
Name: abs
Some tesxt....
Some tesxt....
Some tesxt....
end of text
Name: xyz
Some tesxt....
Some tesxt....
Some tesxt....
end of text
Name: efg
Some... (5 Replies)
Hi Gurus,
I'm using HP-UX B.11.23 operating system.
I've been trying to extract a specific wording for example: "A tool used by tp produced warnings" from my below log data, but could not find a way to solve it. My intention is, if the log contain the word: "A tool used by tp produced... (9 Replies)
Hi Gurus,
I need some help in extracting some of these information and massage it into the desired output as shown below.
I need to extract the last row with the header in below sample which is usually the most recent date, for example:
2012-06-01 142356 mb 519 -219406 mb 1 ... (9 Replies)
Hi I have to extract the destination path information from each record the file is of variable length so I will not be able to use the print command.The search should start on variable "destinationPath" and it should end at immediate "," also the first field has to be printed
Input File:... (7 Replies)
Discussion started by: rkakitapalli
7 Replies
LEARN ABOUT REDHAT
basename
DIRNAME(3) Linux Programmer's Manual DIRNAME(3)NAME
dirname, basename - Parse pathname components
SYNOPSIS
#include <libgen.h>
char *dirname(char *path);
char *basename(char *path);
DESCRIPTION
The functions dirname and basename break a null-terminated pathname string into directory and filename components. In the usual case,
dirname returns the string up to, but not including, the final '/', and basename returns the component following the final '/'. Trailing
'/' characters are not counted as part of the pathname.
If path does not contain a slash, dirname returns the string "." while basename returns a copy of path. If path is the string "/", then
both dirname and basename return the string "/". If path is a NULL pointer or points to an empty string, then both dirname and basename
return the string ".".
Concatenating the string returned by dirname, a "/", and the string returned by basename yields a complete pathname.
Both dirname and basename may modify the contents of path, so if you need to preserve the pathname string, copies should be passed to these
functions. Furthermore, dirname and basename may return pointers to statically allocated memory which may be overwritten by subsequent
calls.
The following list of examples (taken from SUSv2) shows the strings returned by dirname and basename for different paths:
path dirname basename
"/usr/lib" "/usr" "lib"
"/usr/" "/" "usr"
"usr" "." "usr"
"/" "/" "/"
"." "." "."
".." "." ".."
EXAMPLE
char *dirc, *basec, *bname, *dname;
char *path = "/etc/passwd";
dirc = strdup(path);
basec = strdup(path);
dname = dirname(dirc);
bname = basename(basec);
printf("dirname=%s, basename=%s
", dname, bname);
free(dirc);
free(basec);
RETURN VALUE
Both dirname and basename return pointers to null-terminated strings.
BUGS
In versions of glibc up to and including 2.2.1, dirname does not correctly handle pathnames with trailing '/' characters, and generates a
segmentation violation if given a NULL argument.
CONFORMING TO
SUSv2
SEE ALSO dirname(1), basename(1),
GNU 2000-12-14 DIRNAME(3)