01-21-2013
extract string from another string
i do not require to replace that with "Replaced". i want to take out that string - "Replace_12123_31233_32134_12342" and do certain operations with it... this might be a different string everytime... but the position of the string wouldnt change..
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How to extract a portion of a string from a full string using unix.
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Say source string is = "req92374923.log"
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Hi, guys. I have one question:
I need to search for a string in a file, and then extract another string from the file and assign it to a variable.
For example:
the contents of the file (group) is below:
...
ftp:x:23:
mail:x:34
...
testing:x:2001
sales:x:2002
development:x:2003
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Hi all,
i have such string stored in a variable
var1 = 00000120
i want the o/p
var1 = 120
is it possible to have such o/p in ksh/bash ...
thanx in advance for the help
sonu (3 Replies)
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continuing from my previous post, whose link is given below as a reference
https://www.unix.com/shell-programming-scripting/171076-shell-scripting.html#post302573569
consider there is create table commands in a file for eg:
CREATE TABLE `Blahblahblah` (
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Hi,
May i ask if someone share some command for extracting a string between 2 ref string in a txt file
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Hi Team
I have an huge xml where i need to search for a ceratin numbers. For example
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bla bla bla
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How can I extract digits at the end of a string in UNIX shell scripting or perl?
cat file.txt
abc_d123_4567.txt
A246_B789.txt
B123cc099.txt
a123_B234-012.txt
a13.txt
What can I do here? Many thanks.
cat file.txt | sed "s/.txt$//" | ........
4567
789
099
012
13 (11 Replies)
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LEARN ABOUT FREEBSD
openpam_subst
OPENPAM_SUBST(3) BSD Library Functions Manual OPENPAM_SUBST(3)
NAME
openpam_subst -- substitute PAM item values in a string
LIBRARY
Pluggable Authentication Module Library (libpam, -lpam)
SYNOPSIS
#include <sys/types.h>
#include <security/pam_appl.h>
#include <security/openpam.h>
int
openpam_subst(const pam_handle_t *pamh, char *buf, size_t *bufsize, const char *template);
DESCRIPTION
The openpam_subst() function expands a string, substituting PAM item values for all occurrences of specific substitution codes. The template
argument points to the initial string. The result is stored in the buffer pointed to by the buf argument; the bufsize argument specifies the
size of that buffer. The actual size of the resulting string, including the terminating NUL character, is stored in the location pointed to
by the bufsize argument.
If buf is NULL, or if the buffer is too small to hold the expanded string, bufsize is updated to reflect the amount of space required to hold
the entire string, and openpam_subst() returns PAM_TRY_AGAIN.
If openpam_subst() fails for any other reason, the bufsize argument is untouched, but part of the buffer may still have been overwritten.
Substitution codes are introduced by a percent character and correspond to PAM items:
%H Replaced by the current value of the PAM_RHOST item.
%h Replaced by the current value of the PAM_HOST item.
%s Replaced by the current value of the PAM_SERVICE item.
%t Replaced by the current value of the PAM_TTY item.
%U Replaced by the current value of the PAM_RUSER item.
%u Replaced by the current value of the PAM_USER item.
RETURN VALUES
The openpam_subst() function returns one of the following values:
[PAM_SYSTEM_ERR] System error.
[PAM_TRY_AGAIN] Try again.
SEE ALSO
pam(3), pam_get_authtok(3), pam_get_item(3), pam_get_user(3), pam_strerror(3)
STANDARDS
The openpam_subst() function is an OpenPAM extension.
AUTHORS
The openpam_subst() function and this manual page were developed by Dag-Erling Smorgrav <des@des.no>.
BSD
September 12, 2014 BSD