01-12-2009
Get information like substring
I retrieved values from postgresql database
return the following line
name ------------ myname (1 row)
how can I extract "myname" out of the line?
thanks
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I have several lines like this ones:
123456789abcde /aa/bb/123456_$data.log
123456789abcde /aa/bb/123456_not_a_data_log
987654321ab /aa/bb/xpto123456_$data.log
...
How do I get into a variable the value "/aa/bb/123456_$data.log" , searching only for the beggining and ending... (3 Replies)
Discussion started by: Scarlos
3 Replies
2. Shell Programming and Scripting
This is probably pretty simple butI'm not sure how to best go about it.
If I have
FILE="myBigLongFileName_1.xls"
FILE_PREFIX=`echo $FILE| cut -d"." -f1`
# that gives "myBigLongFileName_1"
All i want to do now is chop the "_1" from the end of $FILE_PREFIX
Any ideas anyone? (3 Replies)
Discussion started by: djkane
3 Replies
3. Shell Programming and Scripting
i have a strings
abc-def.csv
ghi-jkl.csv
i want to make it as
abc-*-def.xyz
ghi-*-jkl.xyz
How to do it?. (5 Replies)
Discussion started by: senthilk615
5 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I have a value of a filepath in a variable
DATAFILE with value as "customtop/gpsore37/gepspo/1.0/bin/ashoka.csv
".
Now i want the value of last 4 charcters in to another variable.
That is EXTENSION = .csv
How can i do this in Shell scripting
Thanks in advance
Alla Kishore (8 Replies)
Discussion started by: alla.kishore
8 Replies
5. UNIX for Dummies Questions & Answers
I need to check the occurrence of one string within another.
code
********************
if ;then do something done
********************
Thanks (7 Replies)
Discussion started by: w020637
7 Replies
6. UNIX for Dummies Questions & Answers
Hi
I use the below cmd to get the list of files that are modified than <temp> file in the <path> diretory
cmd:find <path> -name '*.zip' -type f -newer <temp> -print
i am getting all the list of files that are new or modified, with abs path, i want to copy all of these files to a... (3 Replies)
Discussion started by: Naveen_5960
3 Replies
7. Shell Programming and Scripting
I have a string '<Hi>abc</Hi>"
How to print "abc" (6 Replies)
Discussion started by: sandy1028
6 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I hav a string lets say aa.txt:bb:txt
length of the string can vary.. I have to keep the token inside a array and the delimiter is : plz send me the code (2 Replies)
Discussion started by: Deekay.p
2 Replies
9. Shell Programming and Scripting
Hi All,
I have a ouput string likes 'u8wos' or 'u10acsd' or somthing else 'u{number}{any characters}'and I want to get the number behind the letter 'u' by bash shell.
Thanks
Damon (11 Replies)
Discussion started by: Damon_Qu
11 Replies
10. UNIX for Dummies Questions & Answers
Hi,
My requirement is to get the substring and then remove special character.
Ex
I have data like T_SYSTEM_XXXXX_YYYY_ZZZ
I want to get XXXXXYYYYZZZ
the part after T_SYSTEM is varying it might be XXX_YY or just XX
can you tell me which all commands i have to use.
i understand i... (5 Replies)
Discussion started by: Mohammed_Tabish
5 Replies
MEMMEM(3) Linux Programmer's Manual MEMMEM(3)
NAME
memmem - locate a substring
SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <string.h>
void *memmem(const void *haystack, size_t haystacklen,
const void *needle, size_t needlelen);
DESCRIPTION
The memmem() function finds the start of the first occurrence of the substring needle of length needlelen in the memory area haystack of
length haystacklen.
RETURN VALUE
The memmem() function returns a pointer to the beginning of the substring, or NULL if the substring is not found.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+---------+
|Interface | Attribute | Value |
+----------+---------------+---------+
|memmem() | Thread safety | MT-Safe |
+----------+---------------+---------+
CONFORMING TO
This function is not specified in POSIX.1, but is present on a number of other systems.
BUGS
In glibc 2.0, if needle is empty, memmem() returns a pointer to the last byte of haystack. This is fixed in glibc 2.1.
SEE ALSO
bstring(3), strstr(3)
COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU
2017-03-13 MEMMEM(3)