Hi Gurus,
I have a small requirement.
Let suppose i have a file test.txt
test.txt contains
Dispatched date = '2008-04-08'
Name = 'Logers'
Now i want to add one more line to it as Number of Responses = "$a"
$a will be chnaging dynamically which i had grepped it in the script.
Now i... (6 Replies)
Hi All,
I am facing a small problem in sed. I want to insert a line in the existing file.
Existing code:
access to attr=userPassword
by self write
by * auth
access to *
by self write
by users read
by anonymous auth
Desired code:
access to attr=userPassword
by self... (14 Replies)
Hi All,
I need to pick up data on both sides of "=" sign.
For eg, following is the context that I have.
125.156.125.147=machine1
147.125.185.156=machine2
147.125.185.159=machine3
Can I have the ip address in one variable and machine name in another variable using sed or awk.
... (1 Reply)
Hi
I have a file, with format like:
column1|coulumn2|column3|column4
A|X|K|18
L|O|R|31,42,25
G|H|I|55,66
L|E|Q|25,31,94
output required:
column1|coulumn2|column3|column4
A|X|K|18
L|O|R|31,25
L|E|Q|25,31
Input File Format: All columns are seperated using |, last column... (8 Replies)
Hi All,
I'm trying to extract all the description fields from a MIB file which contain multiple instances of the following text:
ENTERPRISE compaq
VARIABLES { sysName, cpqHoTrapFlags, cpqSsBoxCntlrHwLocation,
cpqSsBoxCntlrIndex, cpqSsBoxBusIndex,... (10 Replies)
Hi All,
I have one file with below type of data in it,
$ cat test.txt
###123
###xyxytuerwb
###2
###tyupe
Here I would like to replace all the characters with "x" after the 3 "###" with the same number of characters.
Can you please help me to achieve this. (7 Replies)
Hi
Can some one tell what does this sed command do
sed 's/*$//g
I am more curious on the highlighted part , can some one explain what does that mean.
Thanks
Sri (1 Reply)
hi
i have a requirement to replace a string with another using sed and to get the result newline separated but after sed replacement the newline vanishes
below is sample code
#!/bin/ksh
set -x
string="name sam\nage 45 \nsport soccer"
echo $string
string=`echo $string | sed... (2 Replies)
Hi All
I need to put some sed together for a task and its a bit advanced for me, so I thought I'd ask if anyone here could help.
I have a csv file with content like this -
"","abcde","",""
"'","abcde","",""
"","","","1234"
"'e'","","",""
I need to remove any single quotes that fall... (17 Replies)
Hi I am trying to pattern match with sed, if it finds a match I need it to insert characters at the 28th position, its working but its also adding an extra space and I don't know why, below is the code.
sed 's/715023044/\n&/g' $asn | sed '/^71502304413-000/s/./B4/28' | sed -e :a -e... (4 Replies)
Discussion started by: firefox2k2
4 Replies
LEARN ABOUT NETBSD
cat
CAT(1) BSD General Commands Manual CAT(1)NAME
cat -- concatenate and print files
SYNOPSIS
cat [-beflnstuv] [-] [file ...]
DESCRIPTION
The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command line order. A
single dash represents the standard input, and may appear multiple times in the file list.
The word ``concatenate'' is just a verbose synonym for ``catenate''.
The options are as follows:
-b Implies the -n option but doesn't number blank lines.
-e Implies the -v option, and displays a dollar sign ('$') at the end of each line as well.
-f Only attempt to display regular files.
-l Set an exclusive advisory lock on the standard output file descriptor. This lock is set using fcntl(2) with the F_SETLKW command.
If the output file is already locked, cat will block until the lock is acquired.
-n Number the output lines, starting at 1.
-s Squeeze multiple adjacent empty lines, causing the output to be single spaced.
-t Implies the -v option, and displays tab characters as '^I' as well.
-u The -u option guarantees that the output is unbuffered.
-v Displays 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), hexdump(1), lpr(1), more(1), pr(1), tail(1), view(1), vis(1), fcntl(2)
Rob Pike, "UNIX Style, or cat -v Considered Harmful", USENIX Summer Conference Proceedings, 1983.
STANDARDS
The cat utility is expected to conform to the IEEE Std 1003.2-1992 (``POSIX.2'') specification.
The flags [-belnstv] 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! This is performed by the shell before cat is run.
BSD September 23, 2006 BSD