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1. Shell Programming and Scripting
GM,
I have an issue at work, which requires a simple solution. But, after multiple attempts, I have not been able to hit on the code needed.
I am assuming that sed, awk or even perl could do what I need.
I have an application that adds extra blank page feeds, for multiple reports, when... (7 Replies)
Discussion started by: jxfish2
7 Replies
2. Shell Programming and Scripting
Hi guys,
I need to read following lines and put them in same row ….
text: Abcd5437_XYA0_B1_WXYZ_BE
99:00:14:42:55:01:d4:22
99:00:14:42:70:01:d4:22
99:00:14:42:55:03:a0:22
99:00:14:42:70:03:a0:22
... (4 Replies)
Discussion started by: dc@bos
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3. Shell Programming and Scripting
Hello,
I would like to ask for help with csh script.
An example of an input in .txt file is below, the number of lines varies from file to file and I have 2 or 3 columns with values. I would like to read all the values (probably one by one) and set them to independent unique variables that... (7 Replies)
Discussion started by: FMMOLA
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4. Shell Programming and Scripting
I have a file proc.txt:
if @debug = 1 then
message 'Start Processing ', @procname, dateformat(now(*), 'hh:mm:ss'), @julian type info to client;
end if;
/*
execute immediate with quotes
'insert into sys_suppdata (property, value, key_name)
location ''' || @supp_server || '.' ||... (5 Replies)
Discussion started by: kidncute
5 Replies
5. Shell Programming and Scripting
Hi all,
I jut use a loop to read lines from the user and redirect it to a file.
echo "Enter the line"
while read -r LINE
do
echo $LINE >> FILE
if ;then
break
fi
done
input
app... (1 Reply)
Discussion started by: Ananthdoss
1 Replies
6. Shell Programming and Scripting
Hi Experts,
I am tryin to read a file and while doing so i need to skip the lines which start with a hash (#) char.
I thought of using a goto command but a lot of guys on this site say its not the good way to program. Moreover I am using a ksh shell which deos not support goto command.
... (4 Replies)
Discussion started by: bankimmehta
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7. Shell Programming and Scripting
hi,
i have 2 files.
file1:
1
2
3
4
5
6
file2:
a
b
c
d
e
f
g
h
i (5 Replies)
Discussion started by: vidyaj
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8. UNIX for Dummies Questions & Answers
How can I exclude reading lines in a file that contains the following:
filesystem:/home/pach/liv_patches 128005120 88456640 37270758 71% /home/patches
That is, all lines that contain and begins with filesystem: should not be processed/read from a file (5 Replies)
Discussion started by: paulsew
5 Replies
9. Shell Programming and Scripting
Hi,
Is it possible to read every 2 lines as single record, I have a file like below,
~CZK ~TSCHECHISCHE KRONE ~TSCHECH. REPUBLIK
Dec 1 2005 12:00AM~ 10.840000~
~DKK ~DAENISCHE KRONE ~DAENEMARK
Dec 2 2005 12:00AM~ ... (9 Replies)
Discussion started by: braindrain
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10. UNIX for Advanced & Expert Users
I have a file that has a list of numbers in it. Each line has a different number. I am trying to create some sort of loop within a script that will pick the numbers up on lines 1 and 2 and then put those figures into the script. It then goes through the process then loops back and reads lines 2 and... (5 Replies)
Discussion started by: mariner
5 Replies
tail(1) User Commands tail(1)
NAME
tail - deliver the last part of a file
SYNOPSIS
/usr/bin/tail [+-s number [lbcr]] [file]
/usr/bin/tail [-lbcr] [file]
/usr/bin/tail [+- number [lbcf]] [file]
/usr/bin/tail [-lbcf] [file]
/usr/xpg4/bin/tail [-f | -r] [-c number | -n number] [file]
/usr/xpg4/bin/tail [+- number [l | b | c] [f]] [file]
/usr/xpg4/bin/tail [+- number [l] [f | r]] [file]
DESCRIPTION
The tail utility copies the named file to the standard output beginning at a designated place. If no file is named, the standard input is
used.
Copying begins at a point in the file indicated by the -cnumber, -nnumber, or +-number options (if +number is specified, begins at distance
number from the beginning; if -number is specified, from the end of the input; if number is NULL, the value 10 is assumed). number is
counted in units of lines or byte according to the -c or -n options, or lines, blocks, or bytes, according to the appended option l, b,
or c. When no units are specified, counting is by lines.
OPTIONS
The following options are supported for both /usr/bin/tail and /usr/xpg4/bin/tail. The -r and -f options are mutually exclusive. If both
are specified on the command line, the -f option is ignored.
-b Units of blocks.
-c Units of bytes.
-f Follow. If the input-file is not a pipe, the program does not terminate after the line of the input-file has been copied, but enters
an endless loop, wherein it sleeps for a second and then attempts to read and copy further records from the input-file. Thus it can
be used to monitor the growth of a file that is being written by some other process.
-l Units of lines.
-r Reverse. Copies lines from the specified starting point in the file in reverse order. The default for r is to print the entire file
in reverse order.
/usr/xpg4/bin/tail
The following options are supported for /usr/xpg4/bin/tail only:
-c number The number option-argument must be a decimal integer whose sign affects the location in the file, measured in bytes, to begin
the copying:
+ Copying starts relative to the beginning of the file.
- Copying starts relative to the end of the file.
none Copying starts relative to the end of the file.
The origin for counting is 1; that is, -c+1 represents the first byte of the file, -c-1 the last.
-n number Equivalent to -cnumber, except the starting location in the file is measured in lines instead of bytes. The origin for count-
ing is 1. That is, -n+1 represents the first line of the file, -n-1 the last.
OPERANDS
The following operand is supported:
file A path name of an input file. If no file operands are specified, the standard input is used.
USAGE
See largefile(5) for the description of the behavior of tail when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
EXAMPLES
Example 1 Using the tail Command
The following command prints the last ten lines of the file fred, followed by any lines that are appended to fred between the time tail is
initiated and killed.
example% tail -f fred
The next command prints the last 15 bytes of the file fred, followed by any lines that are appended to fred between the time tail is initi-
ated and killed:
example% tail -15cf fred
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of tail: LANG, LC_ALL, LC_CTYPE, LC_MES-
SAGES, and NLSPATH.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
>0 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
/usr/bin/tail
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
/usr/xpg4/bin/tail
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWxcu4 |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO
cat(1), head(1), more(1), pg(1), dd(1M), attributes(5), environ(5), largefile(5), standards(5)
NOTES
Piped tails relative to the end of the file are stored in a buffer, and thus are limited in length. Various kinds of anomalous behavior can
happen with character special files.
SunOS 5.11 13 Jul 2005 tail(1)