Hello All,
I have log file the result from a multithreaded process. So when a process finishes it will write to this log file as 123 rows merged.
The issue is sometimes the processess finish at the same time or write to the file at the same time as
123 rows merged.145 rows merged.
At... (5 Replies)
I'm having trouble with the following commands
i. count the number of lines which end in a 4 letter word
grep '{4\}$' bfile <<seems to print out everything
abc abc abcd
joe joe john
bob bill
gregory greg
greg gregory
the grep command prints out the lines with 4 letter words and the... (3 Replies)
Folks;
First about find:
when i run this:
find . -name '*log*' -mtime +10 -print | sed 's+^\./++;s+/.*++' | sort -u
i got list of log files but also get a directories (although directory names doesn't have "log" in it).
How can i exclude the directory from the output of this find command? ... (2 Replies)
Haven't worked in bash for ages. did a good bit of shell scripting in regular sh, but have forgotten most of it.
I have several thousand php files that now include the following line at the end of the file. There is no LF or CR/LF before it begins, it is just concatenated to the final line of... (3 Replies)
Hi,
Can anyone help me with the text editing I need here. I have a file that contains the following lines for example: (line numbers are for illustration only)
1 Hello world fantasy.
2 Hello worldfuntastic.
3 Hello world wonderful.
I would like to get all those lines of text that... (5 Replies)
Example:
I have folders
456
abc
xyz
123
a1b
I dont want to find in 123 and a1b. From rest folder i need to find in html and php files.
find ./ -path "123" -prune and a1b
find ./ -iname "*.htm*" -o -iname "*.shtm*" -o -iname "*.php"
Now while finding i need to grep multiple... (7 Replies)
Platforms : Solaris 10 and RHEL 5.6
I always get double quotes , single quotes and asteriks mixed up for find, ls and grep commands.
The below commands retrieve the correct results. But , unders stress , I get all these mixed up :mad: .So, i wanted to get a clear picture.
Please check if... (7 Replies)
Hi all,
I have two separate commands which I would like to join. Basically, I want to match a line and insert a character at the end of the previous line to the matched line
Here is what I have gotgrep -B1 '^>'
sed 's/$/*/'
Any help is much appreciated thanks (5 Replies)
I have a file example.txt as follows :SomeTextGoesHere
$$TODAY_DT=20140818
$$TODAY_DT=20140818
$$TODAY_DT=20140818I need to automatically update the date (20140818) in the above file, by getting the new date as argument, using a shell script.
(It would even be better if I could pass... (5 Replies)
Hi,
I am running the following:
PASS="username/password"
sqlplus -s << EOF | grep -v "^$"
$PASS
set feedback off
set heading off
set termout off
select name from v\$database ;
exit
EOF
Which gives
ERROR:
ORA-28002: the password will expire within 5 days
PSMP1 (1 Reply)
Discussion started by: newbie_01
1 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)