Hi guys, I am new here. I have done many scripts in VisualBasic and batch.
Now going to *inux and learning bash and perl, quite amazing commands I find in linux, like sed, grep, awk and so on...
the task is simple, find a string in folders and remove the line where that string exists.
I can... (3 Replies)
hi
i have a file contains data
session terminated
Line timeout: 120
Change state START->SIGNON_REPLY, RC=0
Change state SIGNON_REPLY->SIGNON, RC=0
i need to remove "Change state" and write to the same file
please help
thanks
Satya (3 Replies)
I am trying to delete the line with pattern and the next line. Found the below command in forum which also deleted the previous line. how should i modify that to make sure that only the line with pattern and the next line are deleted but not the previous line?
awk '/key... (1 Reply)
I'm looking for a way to search a file, in this case init.rc for a specific match, service adbd /sbin/adbd, and delete the a specific line after it
Original:
# adbd is controlled by the persist.service.adb.enable system property
service adbd /sbin/adbd
disabled
After deletion:
#... (5 Replies)
I am using a while loop to read a file and i have to delete a string from the last line. Here is the code so far:
1. Read line by line from file new.html using while loop and store in a variable data
2.Now, need to replace '||chr( from last line in data
I am able to replace that character from... (12 Replies)
All,
I am trying to read in a variable and search a file then delete based on that string, but i want to match exact word.
This works but it matches all, i don't want to match anthing that contains the string, just the exact string.
sed -i "/$feedname/d" file
I tried
sed... (1 Reply)
Hi all,
i have some logs on my linux server that looks like this:
CDR.2012-04-30:30-04-2012 14:09:36;123456456654;A;Greetings! Your amount is 42.24 dollars (without VAT) until 30/04/2012 11:00.
CDR.2012-04-30:30-04-2012 14:09:36;12154878454212;A;Greetings! Your amount is 4203.2 dollars... (2 Replies)
Hi ,
i have a file with data as below.This is same file. But actual file contains to many rows.
i want to search for a string "Field 039 00" and delete that line and previous 3 lines in that file.. Can some body suggested me how can i do using either sed or awk command ?
Field 004... (7 Replies)
Hi Everyone,
I have a requirement in ksh where i have a set of files in a directory. I need to search each and every file if a particular string is present in the file, delete that line and replace that line with another string expression in the same file.
I am very new to unix. Kindly help... (10 Replies)
Discussion started by: Pradhikshan
10 Replies
LEARN ABOUT HPUX
opterr
getopt(3C)getopt(3C)NAME
getopt(), optarg, opterr, optind, optopt - get option letter from argument vector
SYNOPSIS DESCRIPTION
returns the next option letter in argv (starting from that matches a letter in optstring. argc and argv are the argument count and argu-
ment array as passed to optstring is a string of recognized option characters; if a character is followed by a colon, the option takes an
argument which may or may not be separated from it by whitespace.
is the index of the next element of the vector to be processed. It is initialized to 1 by the system, and updates it when it finishes with
each element of
returns the next option character from argv that matches a character in optstring, if there is one that matches. If the option takes an
argument, sets the variable to point to the option argument as follows:
o If the option was the last character in the string pointed to by an element of argv, then contains the next element of argv, and is
incremented by 2. If the resulting value of is greater than or equal to argc, this indicates a missing option argument, and returns
an error indication.
o Otherwise, points to the string following the option character in that element of argv, and is incremented by 1.
If, when is called, is NULL, or the string pointed to by either does not begin with the character or consists only of the character returns
-1 without changing If points to the string returns -1 after incrementing
If encounters an option character that is not contained in optstring, it returns the question-mark character. If it detects a missing
option argument, it returns the colon character if the first character of optstring was a colon, or a question-mark character otherwise.
In either case, sets the variable to the option character that caused the error. If the application has not set the variable to zero and
the first character of optstring is not a colon, also prints a diagnostic message to standard error.
The special option can be used to delimit the end of the options; -1 is returned, and is skipped.
RETURN VALUE
returns the next option character specified on the command line. A colon is returned if detects a missing argument and the first character
of optstring was a colon
A question-mark is returned if encounters an option character not in optstring or detects a missing argument and the first character of
optstring was not a colon
Otherwise, returns -1 when all command line options have been parsed.
EXTERNAL INFLUENCES
Locale
The category determines the interpretation of option letters as single and/or multi-byte characters.
International Code Set Support
Single- and multibyte character code sets are supported.
ERRORS
fails under the following conditions:
[EILSEQ] An invalid multibyte character sequence was encountered during option processing.
EXAMPLES
The following code fragment shows to process arguments for a command that can take the mutually exclusive options and and the options and
both of which require arguments:
#include <stdio.h>
#include <unistd.h>
main (int argc, char *argv[])
{
int c;
int bflg, aflg, errflg;
extern char *optarg;
extern int optind, optopt;
.
.
.
while ((c = getopt(argc, argv, ":abf:o:")) != -1)
switch (c) {
case 'a':
if (bflg)
errflg++;
else
aflg++;
break;
case 'b':
if (aflg)
errflg++;
else {
bflg++;
bproc( );
}
break;
case 'f':
ifile = optarg;
break;
case 'o':
ofile = optarg;
break;
case ':': /* -f or -o without arguments */
fprintf(stderr, "Option -%c requires an argument
",
optopt);
errflg++;
break;
case '?':
fprintf(stderr, "Unrecognized option: - %c
",
optopt);
errflg++;
}
if (errflg) {
fprintf(stderr, "usage: . . . ");
exit(2);
}
for ( ; optind < argc; optind++) {
if (access(argv[optind], 4)) {
.
.
.
}
WARNINGS
Options can be any ASCII characters except colon question mark or null
SEE ALSO getopt(1), thread_safety(5).
STANDARDS CONFORMANCE getopt(3C)