bash: combine arrays with weird substitution/references
Hi all.
I'm trying to finish a bash script with the following elements:
ARRAY[@] and ITEMS should have to get finally combined into NEWARRAY as detailed:
I think that the combination issue is not a mayor problem as it could be (naively?) resolved with 2 loops:
Nevertheless the main problem to me is to get the $ITEMS values correctly referenced (if possible) within NEWARRAY during execution time. Anyway, I'm not sure if the whole stuff is well set...
Does anyone of you know how to turn off color and weird characters on bash shell when using the command "script"? Everytime users on my server used that command to record their script, they either couldn't print it because lp kept giving the "unknown format character" messages or the print paper... (1 Reply)
:confused:
Is it possible to delete array elements dynamically.For instance,consider an array( a b c d ) ,now can i delete array (the third element 'c').So that the array becomes array(a b d)..
Thanks in advance!! (1 Reply)
hi guys,
i have the following script and when i run it i get blank lines on the screen.. i am trying to display the contents of array var..
#!/usr/bin/bash
var=`awk 'NR>20&&NR<31' try.sum | awk '{print $4}'`
echo "${var}" (1 Reply)
hi i am using bash shell to perform some subraction. here is what i have:
i have a while loop and am using i as a counter.
diff= `expr ${ARRAY1} - ${ARRAY2}`
for example array1 has -0.7145 and array2 has -0.7041.
when i try the above command, i get expr: non-numeric argument. any... (6 Replies)
Hi all,
I have a file that contains many lines, but only a few are of my interest, so I'm cutting it with grep + awk, and the result I get is for example
line 0
line 1
line 2
line 3
line n
Now I want to store each line in an array "cell" so I can use it later calling to
${array},... (2 Replies)
My script-
result=""
times()
{
echo "inside the times function"
result=8
echo "Inside function $result"
return $result
}
result=$(times)
echo "the value is "$?
echo "the value of result $result"
when I run I get this, why the value still remain 0.
$ ./func
the value is 0
the value... (5 Replies)
In one session I have strange behavior of the bash-shell:
SDX-Q> echo ">$ss<" #this is just to present the $ss var:
> lll kkk <
SDX-Q> # more obviose:
SDX-Q> od -cb <<<"$ss"
0000000 l l l k k k \n
040 040 040 154 154 154 040... (3 Replies)
I have the following code and for some reason when I call the program using
/home/tcdata/tatsh/trunk/hstmy/bin/bash/raytrac.bash --cmod=jcdint.cmod
I get
hasArgument =
hasArgument = true
Somehow the array element is returning even though I have not chosen the option.
... (41 Replies)
Hi all,
I have a script with the following gist:
declare -a index=(0 1 2 3 4);
declare -a animals=(dog cat horse penguin cow);
declare -a fruits=(orange apple grapes peach mango);
declare -a drinks=(juice milk coffee tea coke);
declare -a cities=(toronto paris london glasgow... (18 Replies)
Hello all,
I have 2 very long list of elements. f.e.:
List 1
1 2 3 4 5
List 2
a b c
How can I combine the two with other. Like this:
1 a
1 b
1 c
2 a
2 b
2 c
3 a
etc. (21 Replies)
Discussion started by: mrAibo
21 Replies
LEARN ABOUT FREEBSD
strtok_r
STRTOK(3) BSD Library Functions Manual STRTOK(3)NAME
strtok, strtok_r -- string tokens
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <string.h>
char *
strtok(char *str, const char *sep);
char *
strtok_r(char *str, const char *sep, char **last);
DESCRIPTION
This interface is obsoleted by strsep(3).
The strtok() function is used to isolate sequential tokens in a null-terminated string, str. These tokens are separated in the string by at
least one of the characters in sep. The first time that strtok() is called, str should be specified; subsequent calls, wishing to obtain
further tokens from the same string, should pass a null pointer instead. The separator string, sep, must be supplied each time, and may
change between calls.
The implementation will behave as if no library function calls strtok().
The strtok_r() function is a reentrant version of strtok(). The context pointer last must be provided on each call. The strtok_r() function
may also be used to nest two parsing loops within one another, as long as separate context pointers are used.
The strtok() and strtok_r() functions return a pointer to the beginning of each subsequent token in the string, after replacing the token
itself with a NUL character. When no more tokens remain, a null pointer is returned.
EXAMPLES
The following uses strtok_r() to parse two strings using separate contexts:
char test[80], blah[80];
char *sep = "\/:;=-";
char *word, *phrase, *brkt, *brkb;
strcpy(test, "This;is.a:test:of=the/string\tokenizer-function.");
for (word = strtok_r(test, sep, &brkt);
word;
word = strtok_r(NULL, sep, &brkt))
{
strcpy(blah, "blah:blat:blab:blag");
for (phrase = strtok_r(blah, sep, &brkb);
phrase;
phrase = strtok_r(NULL, sep, &brkb))
{
printf("So far we're at %s:%s
", word, phrase);
}
}
SEE ALSO memchr(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), wcstok(3)STANDARDS
The strtok() function conforms to ISO/IEC 9899:1990 (``ISO C90'').
AUTHORS
Wes Peters <wes@softweyr.com>, Softweyr LLC
Based on the FreeBSD 3.0 implementation.
BUGS
The System V strtok(), if handed a string containing only delimiter characters, will not alter the next starting point, so that a call to
strtok() with a different (or empty) delimiter string may return a non-NULL value. Since this implementation always alters the next starting
point, such a sequence of calls would always return NULL.
BSD November 27, 1998 BSD