Operations on a file with Deletion , Modification and Insertion of lines
Hi All ,
Given a file , I need to delete , modify and insert lines matching certain patterns in that file using shell scripting.
e.g. If a file FILE1 has following content :
Then , I need to do following three modifications in the file FILE1:
1) I need to delete all lines with PRINTF statements.
2) I need to modify all instances of small "mid" word with capital "MID".
3) I need to insert a line containing "{" after line with IF statement.
I need to all above operations without reading file line by line to avoid performance issues because file may contain more than 10000 lines. And for the same reason, I want to avoid usage of temporary file.
Can anyone please suggest solution for stated problem ?
I am iterating record by record through a file as below,
A,B
A,C
A,D
B,E
B,F
E,G
E,H
The same file should look like in the final output as below,
A,B
B,E
E,G
E,H
B,F
A,C
A,D (10 Replies)
Hi Everyone,
Please help me with this. I have gone through many posts here but couldn't find what I wanted.
I have a file with 79000+ lines and I want to delete lines in a pattern.
I want to delete every 141st line in the file, starting from line 2000 till 50000.
Please help guys.
... (8 Replies)
I have below file say temp1
BSCAJM1:HWJA10C
BSCAJM1:
BSCALW1:
BSCALW1:GVND01B
BSCALW1:
BSCALW1:
BSCBKNR:IJNMKTA
BSCBKNR:
BSCJOD1:
BSCJOD1:JOD121B
i want to delete all the lines ending with : and have below output
BSCAJM1:HWJA10C
BSCALW1:GVND01B
BSCBKNR:IJNMKTA... (8 Replies)
Hi i need an help. I have two files list1 and list2, both contains the server names i want to delete the servers in list2 which were also found in list1.
for an eg
list2 list1
oradg1 oradg4
oradg2 oradg2
oradg3 ... (5 Replies)
I have a huge file with record length around 5000 characters.
There is an ETL tool datastage which is writing this data to the file(AIX server). At position 4095 i have seen NULL Character(^@).
when i am using this command "head -1 file_nm | sed 's/\000//g'" --- the output is displaying... (3 Replies)
I have 800+ html files that need to have a javascript added to them in the head. I can do the looping, setting filenames as variables, etc. but I cannot figure out how to insert my javascript file into the html.
My javascript is in a file named jsinsert.txt
It basically has this format:... (4 Replies)
so i have this data in a file:
jime=1860,yime=1.23243,lime=
jime=1859,yime=1.23018,lime=
jime=1825,yime=1.15371,lime=
jime=1849,yime=1.20769,lime=
jime=1841,yime=1.1897,lime=
jime=1849,yime=1.20769,lime=
i use this code to calculate the percentage difference of the number in column 2... (9 Replies)
Hi,
I am in stage of post processing some of my results. I wanted to plot the data against the three axis x,y,z. The data file is quite complicated and i have to take the average of x, y,z over different steps of my test. A typical file look like below:
Time taken:4s
No.of series : 3... (6 Replies)
Hi, I'm currently dev'ing using awk and I'm currently stuck.
Here's the file, with comments on "<--- ":
Record <--- First Pattern
Amount 1 <--- Amount on first transaction
TotalSales 0 <--- Total Sales Prior from previous transactions
Time 1:00:00 <--- Time... (9 Replies)
Discussion started by: Jin_
9 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)