07-05-2005
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All,
I am having trouble through, I am reading the input from tab delimited file containing several records,
e.g.
line1 field1 field2 field3 so on..
line2 field1 field2 field3 so on..
..
..
on the basis of certain fields for each record in input file, I have to retrieve... (1 Reply)
Discussion started by: Sonu4lov
1 Replies
2. Shell Programming and Scripting
Ok; here is the code
INCREMENT=0 #Final Count
MATCH=0 #Treated as a Boolean
declare -a LINEFOUR #Declared Array
for FILE in $DIR; do # DIR was declared earlier
test -f $FILE && (
TEMP=(sed -n '4p' $FILE) #How do I assign the fourth line of the file to TEMP? This doesn't... (1 Reply)
Discussion started by: Asylus
1 Replies
3. Shell Programming and Scripting
Hi,
I have tried to find some sort of previous similar thread on this but not quite close to what I want to achieve.
Basically I have two class of data in my file..e.g
1,1,1,1,1,2,yes
1,2,3,4,5,5,yes
2,3,4,5,5,5,no
1,2,3,4,4,2,no
1,1,3,4,5,2,no
I wanted to read the "yes" entry to an... (5 Replies)
Discussion started by: ahjiefreak
5 Replies
4. Shell Programming and Scripting
I am trying to read input for a C program (that expects input from the user) from a file using the shell command:
progname < filename
but it seems that the program considers the char '<'
as the first input, hence causing an "error" in my program.
I checked it with another program and it... (2 Replies)
Discussion started by: nadbar
2 Replies
5. Shell Programming and Scripting
Hi guys,
I am new to AWK and unix scripting. Please see below my problem and let me know if anyone you can help.
I have 2 input files (example given below)
Input file 2 is a standard file (it will not change) and we have to get the name (second column after comma) from it and append it... (5 Replies)
Discussion started by: sksahu
5 Replies
6. Shell Programming and Scripting
All,
I am trying to figure out a script to run in windows that will allow me to match on First column in file1 to 8th Column in File2 then
Insert file1 column2 to file2 column4 then create a new file.
File1:
12345 Sam
12346 Bob
12347 Bill
File2:... (1 Reply)
Discussion started by: darkoth
1 Replies
7. Shell Programming and Scripting
hi all, i have a data file that contains 2 columns, names and numbers. i need to read names in to a an array call names and numbers in to an array call numbers. i also have # and blank lines in my dat file and i need to skip those when i read the dat file. how do i do this? btw, my column 1 and... (3 Replies)
Discussion started by: usustarr
3 Replies
8. Shell Programming and Scripting
Hello everybody!
I am quit new here and hope you can help me.
Using an awk script I am trying to extract data from several files. The structure of the input files is as follows:
TimeStep parameter1 parameter2 parameter3 parameter4
e.g.
1 X Y Z L
1 D H Z I
1 H Y E W
2 D H G F
2 R... (2 Replies)
Discussion started by: Daniel8472
2 Replies
9. Open Source
I have a process that requires me to read data from huge log files and find the most recent entry on a per-user basis. The number of users may fluctuate wildly month to month, so I can't code for it with names or a set number of variables to capture the data, and the files are large so I don't... (7 Replies)
Discussion started by: rbatte1
7 Replies
10. Shell Programming and Scripting
Hello,
I am running under ubuntu1 14.04 and I have a script which is sending given process names to vanish so that I'd see less output when I run most popular tools like top etc in terminal window. In usual method it works.
Whenever I restart the system, I have to enter the same data from... (2 Replies)
Discussion started by: baris35
2 Replies
LEARN ABOUT OPENDARWIN
split
SPLIT(1) BSD General Commands Manual SPLIT(1)
NAME
split -- split a file into pieces
SYNOPSIS
split [-a suffix_length] [-b byte_count[k|m]] [-l line_count] [-p pattern] [file [name]]
DESCRIPTION
The split utility reads the given file and breaks it up into files of 1000 lines each. If file is a single dash ('-') or absent, split reads
from the standard input.
The options are as follows:
-a Use suffix_length letters to form the suffix of the file name.
-b Create smaller files byte_count bytes in length. If ``k'' is appended to the number, the file is split into byte_count kilobyte
pieces. If ``m'' is appended to the number, the file is split into byte_count megabyte pieces.
-l Create smaller files n lines in length.
-p pattern
The file is split whenever an input line matches pattern, which is interpreted as an extended regular expression. The matching line
will be the first line of the next output file. This option is incompatible with the -b and -l options.
If additional arguments are specified, the first is used as the name of the input file which is to be split. If a second additional argument
is specified, it is used as a prefix for the names of the files into which the file is split. In this case, each file into which the file is
split is named by the prefix followed by a lexically ordered suffix using suffix_length characters in the range ``a-z''. If -a is not speci-
fied, two letters are used as the suffix.
If the name argument is not specified, the file is split into lexically ordered files named with prefixes in the range of ``x-z'' and with
suffixes as above.
SEE ALSO
csplit(1), re_format(7)
STANDARDS
The split utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
HISTORY
A split command appeared in Version 3 AT&T UNIX.
BUGS
For historical reasons, if you specify name, split can only create 676 separate files. The default naming convention allows 2028 separate
files. The -a option can be used to work around this limitation.
The maximum line length for matching patterns is 65536.
BSD
April 16, 1994 BSD