I have a file in which I need to remove all newline characters but only if they are preceded by "^C" ( ASCII value 3 )
Basically this is a bulk copy file with "^B" and "^C" as delimiters for each record. The application producing the file is also appending a newline which I need to remove,... (1 Reply)
hi all!
i have a working that looks like this...
file1
MALE JOHN
MALE ANJO
FEMALE ANNE
MALE JAMES
FEMALE HONEY
FEMALE IZA
what i want to do is insert "M" when the first string is "MALE" and insert "F" when the first string is "FEMALE".
file1
M MALE ... (10 Replies)
Hi,
I have a string like this user can specify different query sets that is why "or" is mentioned:
$string="](";
or
$string="]((";
or
$string="](((";
or
$string="]((((("; (1 Reply)
Hi,
I have file a.txt as below. I want to add one string root beginning of each line.
Sample file a.txt
aaa
bbb
ccc
Sample output
Root aaa
Root bbb
Root ccc
Can any one help me on this? (6 Replies)
Hi,
I am trying to remove spaces from the beginning of a string (which i am using in my shell script). For ex - my string looks like this -
" no rows selected"
and i want the string to look like this -
"no rows selected"
How can i achieve this?
Thanks! (18 Replies)
Suppose, I have a variable var=" name is ".
I want to remove the blank spaces from the begining and endonly, not from the entire string.
So, that the variable/string looks like following
var="name is".
Please look after the issue. (3 Replies)
I'd like to copy strings from a log file and put them into a CSV.
The strings could be on different line numbers, depending on size of log.
Example Log File:
File = foo.bat
Date = 11/11/11
User = Foo Bar
Size = 1024
...
CSV should look like:
"foo.bat","11/11/11","Foo Bar","1024" (7 Replies)
Hi there,
i need some help to remove all occurrences of a certain character at the beginning of a string.
Example: my string is 00102030 and i want to remove all zeros from beginning of string so the result is 102030 (3 Replies)
Discussion started by: gigagigosu
3 Replies
LEARN ABOUT MOJAVE
cat
CAT(1) BSD General Commands Manual CAT(1)NAME
cat -- concatenate and print files
SYNOPSIS
cat [-benstuv] [file ...]
DESCRIPTION
The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command-line order. If
file is a single dash ('-') or absent, cat reads from the standard input. If file is a UNIX domain socket, cat connects to it and then reads
it until EOF. This complements the UNIX domain binding capability available in inetd(8).
The options are as follows:
-b Number the non-blank output lines, starting at 1.
-e Display non-printing characters (see the -v option), and display a dollar sign ('$') 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