hi,
I am a begginer in unix and i want to know how to open a file and read it and separate the numbers & words and storing it in separate files, Using shell scripting.
Please help me out for this.
Regards
S.Kamakshi (2 Replies)
I'm working on formatting some attendance data to meet a vendors requirements to upload to their system. With some help on the forums here, I have the data close. But they've since changed what they want.
The vendor wants me to submit three fields to them. Field 1 is the studentid field,... (4 Replies)
Hi everyone!
I have a field like that:
I need to keep
I don't know how to use the Capital character like a separator and how to keep only this one...
I guess sed could do something like that...
Thanks;) (3 Replies)
SHELL SCRIPT
Hi,
I have 3 separate files within a folder. Every File contains data in a single column like
File1 contains data
mayank
sushant
dheeraj
File2 contains
DSA_AT
MG_AT
FLAT_09
File3 contains data
123123
232323 (2 Replies)
I have a text file with 1,000,000 rows (It is a single column text file of numbers). I would like to separate the text file into 100 files of equal size (i.e. number of rows). The first file will contain the first 10,000 rows, the second row will contain the second 10,000 rows (rows 10,001-20,000)... (2 Replies)
Hello,
:wall:
I have a 12 column csv file. I wish to delete the entire line if column 7 = hello and column 12 = goodbye. I have tried everything that I can find in all of my ref books.
I know this does not work
/^*,*,*,*,*,*,"hello",*,*,*,*,"goodbye"/d
Any ideas?
Thanks
Please... (2 Replies)
awk 'NF==2{s=$1;next}{$(NF+1)=s}1' sort.txt > output.txt
A_16_P32713632 chr10 90695750 90695810 ACTA2
A_16_P32713635 chr10 90696573 90696633 ACTA2
A_16_P32713680 chr10 90697419 90697479 ACTA2
The command above outputs the data as a string separated by a space in 1 field. I can not... (6 Replies)
I am trying to use awk to find all the $3 values in file2 that are between $2 and $3 in file1. If a value in $3 of file2 is between the file1 fields then it is printed along with the $6 value in file1. Both file1 and file2 are tab-delimited as well as the desired output. If there is nothing to... (4 Replies)
Hi,
Below are the sample files. x.txt is from an Excel file that is a list of users from Windows and y.txt is a list of database account.
$ head -500 x.txt y.txt
==> x.txt <==
TEST01 APP_USER_PROFILE
USER03 APP_USER_PROFILE
TEST02 APP_USER_EXP_PROFILE
TEST04 APP_USER_PROFILE
USER01 ... (3 Replies)
So, I have three problems that cover this subject.
First one asks me to find the number of fields in the file that contain the substring "he". I found the number of fields, but the problem I have is that they are displaying by each record. I want to add all of the records' fields together.
With... (2 Replies)
Discussion started by: mc10
2 Replies
LEARN ABOUT MOJAVE
cat
CAT(1) BSD General Commands Manual CAT(1)NAME
cat -- concatenate and print files
SYNOPSIS
cat [-benstuv] [file ...]
DESCRIPTION
The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command-line order. If
file is a single dash ('-') or absent, cat reads from the standard input. If file is a UNIX domain socket, cat connects to it and then reads
it until EOF. This complements the UNIX domain binding capability available in inetd(8).
The options are as follows:
-b Number the non-blank output lines, starting at 1.
-e Display non-printing characters (see the -v option), and display a dollar sign ('$') at the end of each line.
-n Number the output lines, starting at 1.
-s Squeeze multiple adjacent empty lines, causing the output to be single spaced.
-t Display non-printing characters (see the -v option), and display tab characters as '^I'.
-u Disable output buffering.
-v Display non-printing characters so they are visible. Control characters print as '^X' for control-X; the delete character (octal
0177) prints as '^?'. Non-ASCII characters (with the high bit set) are printed as 'M-' (for meta) followed by the character for the
low 7 bits.
EXIT STATUS
The cat utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
The command:
cat file1
will print the contents of file1 to the standard output.
The command:
cat file1 file2 > file3
will sequentially print the contents of file1 and file2 to the file file3, truncating file3 if it already exists. See the manual page for
your shell (i.e., sh(1)) for more information on redirection.
The command:
cat file1 - file2 - file3
will print the contents of file1, print data it receives from the standard input until it receives an EOF ('^D') character, print the con-
tents of file2, read and output contents of the standard input again, then finally output the contents of file3. Note that if the standard
input referred to a file, the second dash on the command-line would have no effect, since the entire contents of the file would have already
been read and printed by cat when it encountered the first '-' operand.
SEE ALSO head(1), more(1), pr(1), sh(1), tail(1), vis(1), zcat(1), setbuf(3)
Rob Pike, "UNIX Style, or cat -v Considered Harmful", USENIX Summer Conference Proceedings, 1983.
STANDARDS
The cat utility is compliant with the IEEE Std 1003.2-1992 (``POSIX.2'') specification.
The flags [-benstv] are extensions to the specification.
HISTORY
A cat utility appeared in Version 1 AT&T UNIX. Dennis Ritchie designed and wrote the first man page. It appears to have been cat(1).
BUGS
Because of the shell language mechanism used to perform output redirection, the command ``cat file1 file2 > file1'' will cause the original
data in file1 to be destroyed!
The cat utility does not recognize multibyte characters when the -t or -v option is in effect.
BSD March 21, 2004 BSD