Hi, experts,
I would like to create a function that can calculate the total number of lines in a saved text file and delete specific lines in that particular file (I only want the last few lines). Hav anybody have the experience and giv me a hand in this? (9 Replies)
Hi all.
I have a database log file in which log data get appended to it daily. I want to do a automatic maintainence of this log by going through the log and deleting lines belonging to a certain date.
How should i do it? Please help. Thanks.
Example. To delete all lines prior to Jun... (4 Replies)
Hi,
I have a file ( all_users.ldif ) of the following format:
cn=orcladmin, cn=Users, dc=maximus,dc=com
cn=PUBLIC, cn=Users, dc=maximus,dc=com
cn=portal,cn=users,dc=maximus,dc=com
cn=portal_admin,cn=users,dc=maximus,dc=com
cn=uddi_publisher,cn=Users,dc=maximus,dc=com... (4 Replies)
Hello.
My file is like this:
a
b
c
d
e
f
g
h
i
I want to delete all lines after the 3rd line, means after the "c". Is there any way to do this? The lines differ between them and the lines I want to delete does not have a specific word, or the lines I want to keep (a,b,c) does not have a... (4 Replies)
Hi All,
I have came across an issue where I will grep for a primary key and then I have to delete that particular line from the feed file and then save it.
The feed file is a TAB delimited one.
For example:
grep 539439AE9 file1
100.00000 20090119 20090119 20090521 ... (4 Replies)
I have some text files in a folder named ff as follows. I need to delete the lines (in-place editing)in these files based on another file aa.txt.
32bm.txt:
249 253 A P - 0 0 8 0, 0.0 6,-1.4 0, 0.0 2,-0.4 -0.287 25.6-102.0 -74.4 161.1 37.1 13.3 10.9
250... (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)
Gents,
I am trying to delete all lines which start with "H" character, but keeping the fist header. Example In the input file I will delete all lines starting from line 8 which contents character "H" to the end of the file.
I try
sed '8,10000{/^H/d;}' file
But as don't know the end... (1 Reply)
I'm trying to remove a specific number of lines, above and below a specific line of text, highlighted in red:
<STMTTRN>
<TRNTYPE>CREDIT
<DTPOSTED>20151205000001
<TRNAMT>10
<FITID>667800001
<CHECKNUM>667800001
<MEMO>BALANCE
</STMTTRN>
<STMTTRN>
<TRNTYPE>DEBIT
<DTPOSTED>20151207000001... (8 Replies)
Discussion started by: bomsom
8 Replies
LEARN ABOUT REDHAT
curs_deleteln
curs_deleteln(3X)curs_deleteln(3X)NAME
deleteln, wdeleteln, insdelln, winsdelln, insertln, winsertln - delete and insert lines in a curses window
SYNOPSIS
#include <curses.h>
int deleteln(void);
int wdeleteln(WINDOW *win);
int insdelln(int n);
int winsdelln(WINDOW *win, int n);
int insertln(void);
int winsertln(WINDOW *win);
DESCRIPTION
The deleteln and wdeleteln routines delete the line under the cursor in the window; all lines below the current line are moved up one line.
The bottom line of the window is cleared. The cursor position does not change.
The insdelln and winsdelln routines, for positive n, insert n lines into the specified window above the current line. The n bottom lines
are lost. For negative n, delete n lines (starting with the one under the cursor), and move the remaining lines up. The bottom n lines
are cleared. The current cursor position remains the same.
The insertln and winsertln routines, insert a blank line above the current line and the bottom line is lost.
RETURN VALUE
All routines return the integer ERR upon failure and an OK (SVr4 specifies only "an integer value other than ERR") upon successful comple-
tion.
PORTABILITY
These functions are described in the XSI Curses standard, Issue 4. The standard specifies that they return ERR on failure, but specifies
no error conditions.
NOTES
Note that all but winsdelln may be macros.
These routines do not require a hardware line delete or insert feature in the terminal. In fact, they won't use hardware line
delete/insert unless idlok(..., TRUE) has been set on the current window.
SEE ALSO curses(3X)curs_deleteln(3X)