Check for empty line at end of a dynamic header in each file
Hi Folks,
I have a requirement to develop a shell script. PFB my requirement,
Requirement:
I need to check an empty line after the end of each header in respective file and if a empty line is present simply echo file OK and if empty line is not present echo "Adding empty line" and add an empty line to an existing file with out modifying any other content in the same file.
My Problem:
The problem where I am stuck is there are four files and in each file the header is spanned into multiple lines with no specific format (In other words dynamic, In one file the header is spanned in 4 lines , in other 5 lines and in other 6 lines). I am not able to find a way how to check the end of header and accomplish my above requirement.
I have googled and read many articles but could not find a relevant answer. It would be of great help if you can help me out.
I have attached the sample files (In fact the original files which I am testing) for your reference. Please help me out.
--------------------------------------------------------------------------------
Have to check in a file that the lines starting with 620 and 705
are ending at same posiotin.
82012345
62023232323
70523949558
62023255454
9999
In the above lines, i have to check the lines starting... (1 Reply)
I Have to check in a file that all the lines are ending at same posiotin.
Ex : line 1 is ending at position 88
line 2 should at same position i.e 88
Thanks in advance (6 Replies)
Hi guys i had a script which will generate a log file.Is there any commands to check the dynamic changes in the log file,i.e if i open the log file i should able to see the updating changes live...I hope u understand my query... (2 Replies)
How to append constant No of spaces suppose 52 at end of each line in a file (xyz) excluding first and last line.
Please Help me out for the same. (1 Reply)
Hi,
Can you please tell me how to add empty columns at the end csv file?
Currently there are 6 columns in the csv file. I want to add 35 empty columns at the end of this csv file.
Thanks,
Tushar (17 Replies)
I know it looks like a stupid question, but i really wanna know the reason.
Actually, i think it's because the c compiler will detect it as the end of file "EOF" of the program, but, am i wrong? because it compiles it anyway, but keep showing warnings like "no new line at the end of file".
I... (8 Replies)
I'm trying to remove all of the empty lines at the end of a Tab delimited file. They have no data just tabs.
I've tried may things, here are a couple:
sed /^\t.\t/d File1 > File2
sed /^\t{44}/d File1 > File2
What am I missing? (9 Replies)
I have a .CSV file (lets say named as file.csv) with numeric and string values. The string might contain commas hence they are enclosed in double quotes as in the below format.
column1,column2,column3,column4,column5,column6,column7
12,455,"string, with, quotes, and with, commas, in... (3 Replies)
Hello,
I need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line... An example of entries in the file would be:
SRVXPAPI001 ERRO JUN24 07:28:34 1775
REASON= 0000, PROCID= #E506 #1065: TPCIPPR, INDEX= 003F
... (8 Replies)
I have a .CSV file (frequency - weekly) whose header contains the year-week value in two of the columns which keeps changing every week. For an instance please see below.
Column1,Column2,Column3,Column4,Column5,Column6,Column7,Column8,Column9,Column10,Column11,Column12,Column13,201420... (4 Replies)
Discussion started by: dhruuv369
4 Replies
LEARN ABOUT SUSE
gets
gets(n) Tcl Built-In Commands gets(n)
__________________________________________________________________________________________________________________________________________________NAME
gets - Read a line from a channel
SYNOPSIS
gets channelId ?varName?
_________________________________________________________________DESCRIPTION
This command reads the next line from channelId, returns everything in the line up to (but not including) the end-of-line character(s), and
discards the end-of-line character(s).
ChannelId must be an identifier for an open channel such as the Tcl standard input channel (stdin), the return value from an invocation of
open or socket, or the result of a channel creation command provided by a Tcl extension. The channel must have been opened for input.
If varName is omitted the line is returned as the result of the command. If varName is specified then the line is placed in the variable
by that name and the return value is a count of the number of characters returned.
If end of file occurs while scanning for an end of line, the command returns whatever input is available up to the end of file. If chan-
nelId is in nonblocking mode and there is not a full line of input available, the command returns an empty string and does not consume any
input. If varName is specified and an empty string is returned in varName because of end-of-file or because of insufficient data in non-
blocking mode, then the return count is -1. Note that if varName is not specified then the end-of-file and no-full-line-available cases
can produce the same results as if there were an input line consisting only of the end-of-line character(s). The eof and fblocked commands
can be used to distinguish these three cases.
EXAMPLE
This example reads a file one line at a time and prints it out with the current line number attached to the start of each line.
set chan [open "some.file.txt"]
set lineNumber 0
while {[gets $chan line] >= 0} {
puts "[incr lineNumber]: $line"
}
close $chan
SEE ALSO
file(n), eof(n), fblocked(n), Tcl_StandardChannels(3)KEYWORDS
blocking, channel, end of file, end of line, line, nonblocking, read
Tcl 7.5 gets(n)