Hi ,
i export the crontab in a file (i've no root right) and i would add lines from a file at a special place and rewrite the output in an another file.
the special place is as this :
45 04 * * * /home/toto.sh > /dev/null 2>&1
#
so i would search for toto.sh and insert the lines , the... (5 Replies)
Hello,
I need to search in file2 for
class A : public B
{
and insert right after that the content of file1.
I am a bit lost as to which tools (which bash functions, awk...). I should use. Thanks for some directions here.
Regards (1 Reply)
If I cat a file
And want to go to the first instance of a particular value - what command would I use?
And then from that point where I jumped to search for another value - but only search from that point forward not before the file?
Thanks~ (2 Replies)
Is in Unix a tool that could do this:
paste -d":" 'file1' 'file2' | special_save "file1" # so that file1 would be treated in a way that would prevent problems with race condition
I know it normally doesn't work but is there any intelligent way how to avoid using temporary file? I know methods... (6 Replies)
Hi all,
I want to insert a string in a specified place of a very large file. I am giving an example of the task:
I love football.
Above is a sentence in a file and I want to insert a string "the" between love and football. It is not sure that where this particular line exists. It has to... (4 Replies)
I need some help with adding lines to file and substitute a pattern.
Ok I have a file:
#cat names.txt
name: John Doe
stationed: 1
name: Michael Sweets
stationed: 41
.
.
.
And would like to change it to:
name: John Doe
employed
permanently
stationed: 1-office (7 Replies)
Hello, I am using tcsh on AIX.
I would like to write a script that does the following:
1. given an inode, how do I find exactly the name of the file?
I know I could do this using ls -i | grep <inode>
but it returns: <inode> <filename>. I need some string manipulation or something to... (1 Reply)
I have to check a directory on Linux (via shell Script which I am trying to build) for about 20 different source files with file patterns and if the files are made available in the directory, I should place flag files for which my other ETL jobs are waiting on to kick off. If the source files are... (6 Replies)
Hi All,
Daily I am getting the updated file.
I have to search for this file in all directories and sub directories.
If the file existed in a particular directory then move this updated file to that particular directory.
If the file is not existed in any of the directories then place this... (4 Replies)
I have an array in an external file, "array.txt", which contains:
char *testarray={"Zero", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"};I want to be able to add an element to this array, and have that element display, whenever I call it, without having to recompile... (29 Replies)
Discussion started by: ignatius
29 Replies
LEARN ABOUT OSX
getdelim
GETLINE(3) BSD Library Functions Manual GETLINE(3)NAME
getdelim, getline -- get a line from a stream
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdio.h>
ssize_t
getdelim(char ** restrict linep, size_t * restrict linecapp, int delimiter, FILE * restrict stream);
ssize_t
getline(char ** restrict linep, size_t * restrict linecapp, FILE * restrict stream);
DESCRIPTION
The getdelim() function reads a line from stream, delimited by the character delimiter. The getline() function is equivalent to getdelim()
with the newline character as the delimiter. The delimiter character is included as part of the line, unless the end of the file is reached.
The caller may provide a pointer to a malloced buffer for the line in *linep, and the capacity of that buffer in *linecapp. These functions
expand the buffer as needed, as if via realloc(). If linep points to a NULL pointer, a new buffer will be allocated. In either case, *linep
and *linecapp will be updated accordingly.
RETURN VALUES
The getdelim() and getline() functions return the number of characters written, excluding the terminating NUL character. The value -1 is
returned if an error occurs, or if end-of-file is reached.
EXAMPLES
The following code fragment reads lines from a file and writes them to standard output. The fwrite() function is used in case the line con-
tains embedded NUL characters.
char *line = NULL;
size_t linecap = 0;
ssize_t linelen;
while ((linelen = getline(&line, &linecap, fp)) > 0)
fwrite(line, linelen, 1, stdout);
ERRORS
These functions may fail if:
[EINVAL] Either linep or linecapp is NULL.
[EOVERFLOW] No delimiter was found in the first SSIZE_MAX characters.
These functions may also fail due to any of the errors specified for fgets() and malloc().
SEE ALSO fgetln(3), fgets(3), malloc(3)STANDARDS
The getdelim() and getline() functions conform to IEEE Std 1003.1-2008 (``POSIX.1'').
HISTORY
These routines first appeared in FreeBSD 8.0.
BUGS
There are no wide character versions of getdelim() or getline().
BSD November 30, 2010 BSD