I wish to delete lines from a log file. Should take a date string as a variable. Find the date in the file, get the line number for the string. Delete lines from 1 to that (line number - 1), all from within a shell script. Is that possible ?.
Thnks,
:confused: (6 Replies)
Hi,
Just consider there are around 10 lines in a file. Now is it possible to delete the first 2 lines in the file without opening the file. No matter whatever the content of the file is, I just wanna delete the first 2 lines without opening the file. Is that possible? If so, please help me out.... (3 Replies)
Hi,
Im doing a script to find the number of lines included inside a file newly. These lines are in between #ifdef FLAG1 and #else or #endif or #else and #endif.
I tried like this,
awk '/#ifdef Flag1/,/#e/{print}' aa.c | wc -l
awk '/#ifndef Flag1/,/#endif/{print}' aa.c | awk... (6 Replies)
Input:
a
b
b
c
d
d
I need:
a
c
I know how to get this (the lines that have duplicates) :
b
d
sort file | uniq -d
But i need opossite of this. I have searched the forum and other places as well, but have found solution for everything except this variant of the problem. (3 Replies)
Hi Gurus,
I am working with a korn shell script to simplify some operations of calculation number of lines inside compressed file.
The called function (inside a cycle) is the following:
#########################################
# F.ne: CheckCount
#########################################... (3 Replies)
Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
I have a text file say g1.txt and content of this file is ...as below
1|HideCDrive, | : REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v NoDrives /t REG_DWORD /d 4 /f,
2|HideRunButton, | : REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer"... (7 Replies)
Hello,
I have file of more than 10000 lines.
I want to delete 40 lines after every 20 lines.
e.g from a huge file, i want to delete line no from 34 - 74, then 94 - 134 etc and so on.
Please let me know how i can do it.
Best regards, (11 Replies)
Discussion started by: nehashine
11 Replies
LEARN ABOUT OPENSOLARIS
insdelln
insdelln(3XCURSES) X/Open Curses Library Functions insdelln(3XCURSES)NAME
insdelln, winsdelln - insert/delete lines to/from the window
SYNOPSIS
cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib
-R /usr/xpg4/lib -lcurses [ library... ]
c89 [ flag... ] file... -lcurses [ library... ]
#include <curses.h>
int insdelln(int n);
int winsdelln(WINDOW *win, int n);
PARAMETERS
n Is the number of lines to insert or delete (positive n inserts; negative n deletes).
win Is a pointer to the window in which to insert or delete a line.
DESCRIPTION
The insdelln() and winsdelln() functions insert or delete blank lines in stdscr or win, respectively. When n is positive, n lines are
added before the current line and the bottom n lines are lost; when n is negative, n lines are deleted starting with the current line,
the remaining lines are moved up, and the bottom n lines are cleared. The position of the cursor does not change.
RETURN VALUES
On success, these functions return OK. Otherwise, they return ERR.
ERRORS
None.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |Unsafe |
+-----------------------------+-----------------------------+
SEE ALSO deleteln(3XCURSES), insertln(3XCURSES), libcurses(3XCURSES), attributes(5), standards(5)SunOS 5.11 5 Jun 2002 insdelln(3XCURSES)