STRLTRIM(3pub) C Programmer's Manual STRLTRIM(3pub)NAME
strltrim - remove leading whitespace from string
SYNOPSIS
#include <publib.h>
char *strltrim(char *s);
DESCRIPTION
strltrim removes all leading whitespace characters from the beginning of a string, by moving everything starting from the first non-white-
space character to the beginning of the string. As whitespace is counted everything for which isspace(3) returns true.
RETURN VALUE
strltrim returns its argument.
EXAMPLE
To remove all indentation from all lines in a program, you might do the following:
#include <publib.h>
int main(void) {
char line[512];
while (fgets(line, sizeof(line), stdio) != NULL) {
strltrim(line);
printf("%s", line);
}
return 0;
}
SEE ALSO publib(3), strrtrim(3), strtrim(3), isspace(3)AUTHOR
Lars Wirzenius (lars.wirzenius@helsinki.fi)
Publib C Programmer's Manual STRLTRIM(3pub)
Check Out this Related Man Page
STRSUB(3pub) C Programmer's Manual STRSUB(3pub)NAME
strsub - substitute first occurence of pattern with another string
SYNOPSIS
#include <publib.h>
char *strsub(char *str, const char *pat, const char *sub);
DESCRIPTION
strsub finds the first occurence of the pattern pat in the string str (using a method similar to strstr(3), i.e., no regular expressions),
and replaces it with sub. If pat does not occur in str, no substitution is made.
Of course, if sub is an empty string, the pattern is deleted from the string.
RETURN VALUE
strsub returns a pointer to the first character after the substitution, or NULL if no substitution was made.
EXAMPLE
To substitute up to two occurences of "foo" with "bar" in a line, one might do the following.
p = strsub(line, "foo", "bar");
if (p != NULL)
strsub(line, "foo", "bar");
SEE ALSO publib(3), strstr(3), strgsub(3)AUTHOR
Lars Wirzenius (lars.wirzenius@helsinki.fi)
Publib C Programmer's Manual STRSUB(3pub)
Hello,
Does somebody know what is happening here? This piece of code should skip leading spaces (and others).
If isspace encounters a non space character, it doesn't return false.
If we analyze the " isspace(*cs_str);" in the debugger, it returns 0. If we check the value in b_space after... (4 Replies)
I am trying to search through a text file and replace the number 1 at the beginning of the string in the second field with the number 9. There maybe one or more occurrences of whitespace between the string GPA131 and 17049333610. Does anyone know how to do this with sed?
GPA131 17049333610
... (1 Reply)
Hi,
I have been trying to remove whitespace from a file using sed. Here is an example of what im trying to do:
www1 = www1
www2 = www2
www3 = www3
and all the way to 300 and i want it to look like:
www1=www1
www2-www2
www3=www3
again upto 300
Any help... (12 Replies)
Hi
Can anyone tell me how can i remove new line character from a string.
My requirement is to read a line from a file and store it to a string.
read line
string1=$line
read line
string2=$line
echo $string1$string2
The result i am getting in different line. i want the output in the same... (1 Reply)
I combined 2 files using the paste command. It gave me something like this:
123445 ,AABBNN
22344 ,BBVVMM
I want to remove the whitespace between the end of string 1 and the comma (there is more blank space than my post is showing). Would I... (2 Replies)
I have a single string as below:
Rat run after Cat
i.e. there is a single whitespace after Cat.
This causes my file to fail.
Is there a way I can remove any whitespace at the end of any string.
I tried sed 's/ *//g', but it removes all white space and the above string becomes... (10 Replies)
Hi Experts,
In a file tht i copied from the web , i am not able to remove the leading white spaces. I tried the below , none of them working . I opened the file through vi to check for the special characters if any , but no such characters found.
Your advice will be greatly appreciated.
sed... (5 Replies)
Hi,
I have a file with rows like below delimited with pipe (|)
I want to remove all the leading and trailing white space from each and every fields keeping the delimiter intact.
I have tired this
sed 's/*//g;s/*$//g'
but the result is incorrect
it is removing a whitespace from... (6 Replies)
Greetings everyone!
I keep getting a very long whitespace after some char strings I'm outputting.
This is the function where I input the names, last names...:
void add_to_list (void)
/* Add a new name to our address book */
{
ADDRESS *new_name;
FILE *outfile;
new_name=... (4 Replies)
Hi there,
i need some help to remove all occurrences of a certain character at the beginning of a string.
Example: my string is 00102030 and i want to remove all zeros from beginning of string so the result is 102030 (3 Replies)
Hi,
I have a file with lines such as the below. I want to remove the comma only if it is the first character on a line. I can't work out how to do this using sed.
*ELSET, ELSET=WHEEL_TD2
63, 64, 65, 72, 82, 88, 89, 92, 120, 121, 152, 181, 190, 221, 252, 259
, 260, 282, 283, 285, 286,... (2 Replies)
Hi again
I have an xml file and want to remove the leading white space as it causes me issues later in my script
I see sed is possible but cant seem to get it to work
I tried
sed 's/^ *//' file.xml
output
<xn:VsDataContainer id="1U104799" modifier="update">
... (10 Replies)
I have about 350 programs in which I have to add 2 lines; one before and one after a specfic line.
The following script does the job except that I lose the indentation.
#!/usr/bin/bash
while read line ... (8 Replies)
In vi I would like to remove a line containing a string. I thought after reading this I could do this.
https://www.unix.com/302297288-post3.html
:'3560,3572/gcc/d'
It keeps complaining vi mark not set. And sometimes it complains E488: Trailing characters.
I don't understand what mark... (5 Replies)