I mean the output should be "the line I need to get". The example wasn't originaly quoted correctly (meantime I have corrected it). But if I understand your proposal well, only one more ';n' should be added to 'print' section of your sed script.
Anyhow, I don't understand your script well - would you explain please the meaning of 'H;', 'x;' and why pattern2 & pattern3 are preceded by asterisk ('*')?
Hi,
My objective is to get the line number of the first occurance of the search pattern.
my test.txt contains:
..... ..................
total rows....
................... ..
total rejected rows: 40
total rejected rows: 50
total rejected rows: 80
total rejected rows: 90
total... (9 Replies)
Hi,
I have the following data in a flat file:
abcd_efgh_ijkl_20080522.dat|20080602222508|1357
abcd_efgh_ijkl_20080522.dat|20080602222508|1357
abcd_efgh_ijkl_20080522.dat|20080602222508|1357
I need to check the no. of occurence of "|" (pipe) on each line and the output should look like below:... (4 Replies)
I have two files. The first containing a header and six columns of data.
Example file 1:
Number SNP ID dbSNP RS ID Chromosome Result_Call Physical Position
787066 SNP_A-8575395 RS6650104 1 NOCALL 564477
786872 SNP_A-8575125 RS10458597 1 AA ... (13 Replies)
Hi,
I have a file, which contains the following log data.
I am trying to print fromt he file the following data:
I have tried using sed, but I am getting from the first pattern
Thanks for your help. (5 Replies)
Hi ,
I have an issue where I want to parse through the output from a file and I want to grab the nth occurrence of text in between two patterns preferably using awk or sed
! TICKET NBR : 1 !GSI : 102 ! 3100.2.112.1 11/06/2013 15:56:29 ! 3100.2.22.3 98 ! 3100.2.134.2... (8 Replies)
I have an output file which gives me the timely status of a server.
Sample file:
March 11 2014
21:10, 1, 2, 3, 4, 5, 6, 7, 8, 9, x, y, z...
21:05, 1, 2, 3, 4, 5, 6, 7, 8, 9, x, y, z...
21:00, 1, 2, 3, 4,... (3 Replies)
Hi,
I am trying to extract some patterns from a line. The input file is space delimited and i could not use column to get value after "IN" or "OUT" patterns as there could be multiple white spaces before the next digits that i need to print in the output file . I need to print 3 patterns in a... (3 Replies)
I have a large file and many lines are duplicated. I'm trying to delete lines with every second occurrence of a pattern. Did tried searching similar question but no luck.
I can delete all lines matching pattern with :g/pattern/d but don't want to lose data.
Sample pattern to delete... (6 Replies)
Discussion started by: homer4all
6 Replies
LEARN ABOUT LINUX
erl_format
erl_format(3erl) C Library Functions erl_format(3erl)NAME
erl_format - Create and Match Erlang Terms
DESCRIPTION
This module contains two routines - one general function for creating Erlang terms and one for pattern matching Erlang terms.
EXPORTS
ETERM * erl_format(FormatStr, ... )
Types char *FormatStr;
This is a general function for creating Erlang terms using a format specifier and a corresponding set of arguments, much in the way
printf() works.
FormatStr is a format specification string. The set of valid format specifiers is as follows:
* ~i - Integer
* ~f - Floating point
* ~a - Atom
* ~s - String
* ~w - Arbitrary Erlang term
For each format specifier that appears in FormatStr , there must be a corresponding argument following FormatStr . An Erlang term is
built according to the FormatStr with values and Erlang terms substituted from the corresponding arguments and according to the
individual format specifiers. For example:
erl_format("[{name,~a},{age,~i},{data,~w}]",
"madonna",
21,
erl_format("[{adr,~s,~i}]","E-street",42));
This will create an (ETERM *) structure corresponding to the Erlang term: [{name,madonna},{age,21},{data,[{adr,"E-street",42}]}]
The function returns an Erlang term, or NULL if FormatStr does not describe a valid Erlang term.
int erl_match(Pattern, Term)
Types ETERM *Pattern,*Term;
This function is used to perform pattern matching similar to that done in Erlang. Refer to an Erlang manual for matching rules and
more examples.
Pattern is an Erlang term, possibly containing unbound variables.
Term is an Erlang term that we wish to match against Pattern .
Term and Pattern are compared, and any unbound variables in Pattern are bound to corresponding values in Term .
If Term and Pattern can be matched, the function returns a non-zero value and binds any unbound variables in Pattern . If Term Pat-
tern do not match, the function returns 0. For example:
ETERM *term, *pattern, *pattern2;
term1 = erl_format("{14,21}");
term2 = erl_format("{19,19}");
pattern1 = erl_format("{A,B}");
pattern2 = erl_format("{F,F}");
if (erl_match(pattern1, term1)) {
/* match succeeds:
* A gets bound to 14,
* B gets bound to 21
*/
...
}
if (erl_match(pattern2, term1)) {
/* match fails because F cannot be
* bound to two separate values, 14 and 21
*/
...
}
if (erl_match(pattern2, term2)) {
/* match succeeds and F gets bound to 19 */
...
}
erl_var_content() can be used to retrieve the content of any variables bound as a result of a call to erl_match() .
Ericsson AB erl_interface 3.7.3 erl_format(3erl)