I will be performing a task on several directories, each containing a large number of files (2500+) that follow a regular naming convention:
YYYY_MM_DD_XX.foo_bar.A.B.some_different_stuff.EXT
What I would like to do is automatically discover the part of the filenames that are common to all... (1 Reply)
Hi!
I have a difficult problem, to step up a unknown version number in a text file, and save the file. It would be great to run script.sh and the version gets increased.
Example the content of the textfile.txt
hello
version = x
bye
This include three steps
1. First find the char after... (2 Replies)
Hello, I am using awk to match text in a tab separated field and am able to do so when matching the exact word. My problem is that I would like to match any sequence of text in the tab-separated field without having to match it all. Any help will be appreciated. Please see the code below.
awk... (3 Replies)
here is what i want to achieve... consider a file contains below contents. the file size is large about 60mb
cat dump.sql
INSERT INTO `table1` (`id`, `action`, `date`, `descrip`, `lastModified`) VALUES (1,'Change','2011-05-05 00:00:00','Account Updated','2012-02-10... (10 Replies)
I met a challenge to filter ~70 millions of sequence rows and I want using awk with conditions:
1) longest string of each pattern in column 2, ignore any sub-string, as the index;
2) all the unique patterns after 1);
3) print the whole row;
input:
1 ABCDEFGHI longest_sequence1
2 ABCDEFGH... (12 Replies)
Hi all !
I almost did it but got a small problem.
input:
cars red
cars blue
cars green
truck black
Wanted:
cars red-blue-green
truck black
Attempt:
gawk 'BEGIN{FS="\t"}{a = a (a?"-":"")$2; $2=a; print $1 FS $2}' input
But I also got the intermediate records... (2 Replies)
Hello gurus,
I have a database of possible primary signal strings
pp22
pt22dx
pp22dx
jty2234
Also I have a list of scrambled signals which has a shorter string and a longer string separated by // (double slash ). Always the shorter string of a scrambled signal will have the primary... (6 Replies)
In the awk below I am trying to set/update the value of $14 in file2 in
bold, using the matching NM_ in $12 or $9 in file2
with the NM_ in $2 of file1.
The lengths of $9 and $12 can be variable but what is consistent is the start pattern
will always be NM_ and the end pattern is always ;... (2 Replies)
Hi,
Wish to remove "DR-" from the string variable (var).
var="DR-SERVER1"
var=`echo $var | sed -e 's/DR-//g'`
echo "$var"
Expected Output:
However, I get the below error:
Can you please suggest. (4 Replies)
Discussion started by: mohtashims
4 Replies
LEARN ABOUT MOJAVE
tcl_getbytearrayfromobj
Tcl_ByteArrayObj(3) Tcl Library Procedures Tcl_ByteArrayObj(3)__________________________________________________________________________________________________________________________________________________NAME
Tcl_NewByteArrayObj, Tcl_SetByteArrayObj, Tcl_GetByteArrayFromObj, Tcl_SetByteArrayLength - manipulate Tcl objects as a arrays of bytes
SYNOPSIS
#include <tcl.h>
Tcl_Obj *
Tcl_NewByteArrayObj(bytes, length)
void
Tcl_SetByteArrayObj(objPtr, bytes, length)
unsigned char *
Tcl_GetByteArrayFromObj(objPtr, lengthPtr)
unsigned char *
Tcl_SetByteArrayLength(objPtr, length)
ARGUMENTS
const unsigned char *bytes (in) The array of bytes used to initialize or set a byte-array object.
int length (in) The length of the array of bytes. It must be >= 0.
Tcl_Obj *objPtr (in/out) For Tcl_SetByteArrayObj, this points to the object to be converted to byte-array type. For
Tcl_GetByteArrayFromObj and Tcl_SetByteArrayLength, this points to the object from which to
get the byte-array value; if objPtr does not already point to a byte-array object, it will be
converted to one.
int *lengthPtr (out) If non-NULL, filled with the length of the array of bytes in the object.
_________________________________________________________________DESCRIPTION
These procedures are used to create, modify, and read Tcl byte-array objects from C code. Byte-array objects are typically used to hold
the results of binary IO operations or data structures created with the binary command. In Tcl, an array of bytes is not equivalent to a
string. Conceptually, a string is an array of Unicode characters, while a byte-array is an array of 8-bit quantities with no implicit
meaning. Accessor functions are provided to get the string representation of a byte-array or to convert an arbitrary object to a byte-
array. Obtaining the string representation of a byte-array object (by calling Tcl_GetStringFromObj) produces a properly formed UTF-8
sequence with a one-to-one mapping between the bytes in the internal representation and the UTF-8 characters in the string representation.
Tcl_NewByteArrayObj and Tcl_SetByteArrayObj will create a new object of byte-array type or modify an existing object to have a byte-array
type. Both of these procedures set the object's type to be byte-array and set the object's internal representation to a copy of the array
of bytes given by bytes. Tcl_NewByteArrayObj returns a pointer to a newly allocated object with a reference count of zero. Tcl_SetByteAr-
rayObj invalidates any old string representation and, if the object is not already a byte-array object, frees any old internal representa-
tion.
Tcl_GetByteArrayFromObj converts a Tcl object to byte-array type and returns a pointer to the object's new internal representation as an
array of bytes. The length of this array is stored in lengthPtr if lengthPtr is non-NULL. The storage for the array of bytes is owned by
the object and should not be freed. The contents of the array may be modified by the caller only if the object is not shared and the call-
er invalidates the string representation.
Tcl_SetByteArrayLength converts the Tcl object to byte-array type and changes the length of the object's internal representation as an
array of bytes. If length is greater than the space currently allocated for the array, the array is reallocated to the new length; the
newly allocated bytes at the end of the array have arbitrary values. If length is less than the space currently allocated for the array,
the length of array is reduced to the new length. The return value is a pointer to the object's new array of bytes.
SEE ALSO
Tcl_GetStringFromObj, Tcl_NewObj, Tcl_IncrRefCount, Tcl_DecrRefCount
KEYWORDS
object, byte array, utf, unicode, internationalization
Tcl 8.1 Tcl_ByteArrayObj(3)