1.
:[^:]*$ here's the confusing bit. So what does this mean? Here's me guessing.
Choose ':' and any character at the beginning of ':' when there are 0 or more occurrences of the preceding character before the end of the line??? I'm sure what I said is wrong but that's a guess.
2.
//; keep doing this on each line till the end of the file?
3.
s/.*:// I think I get this bit. This means any character before the next ':' right?
Please check man SED.
Quote:
Oh, and the first line you gave me gives up to the third ':'. I just want the words before the first ':' for that bit.
hey all,
i was just wondering if it was possible to to get data from user input , and parse it through sed to remove or add what that user has entered into a flat file?
do i need awk ?
any help is greatly appreciated
~shan2on (2 Replies)
hi all,
i want to display output of sar, whichever idle time is less than 30%..i want to add HI and BYE at the starting and ending of the line.
For an example:
sar
Linux 2.6.9-78.0.1.ELsmp (hostname) 07/10/2009
07:10:01 AM CPU %user %nice %system %iowait %idle... (7 Replies)
Hello,
I'm trying to select, or well put the PID that is given by fuser to a var.. It has a wierd format and I somehow can't get it working, any awk/sed experts about?
PID=`fuser $file | awk/sed....?`
if ; then
kill $PID
fi
Greetings and thanks for all your awesome help in advance! (4 Replies)
Hi,
In one of my scripts, I am using sed to do an expression replacement. The code in the script is as under
sed "s|MY_INP_Lab=""|MY_INP_Lab="${2}"|" file1, where $2=xyz_abc_mbk
The EXPECTED output is in file1, all the instances ofMY_INP_Lab="" shall be replaced by... (2 Replies)
Hi all!
I was wondering if anyone could help suggest some solutions to an issue i'm having using the Sed command. I'm still a relative novice at this, but slowly learning and enjoying the power of batch processing.
I am using Sed to extract values from a .txt file containing hundreds of... (2 Replies)
Hi expert,
i need URGENT help in bash shell scripting using sed:
i woud like to search for the word XMLRPC which is at theend of the line below in up2date file. Once found or match
serverURL=https://redhat.com/XMLRPC
replace with myserver.com like this
... (1 Reply)
Hi All,
I am looking for a simple concise solution most likely using sed to process the following 4 rows of data from the same record and only keeps it if the second record satisfy certain critea such as surname matches up to smith or jackson:
John (firstname)
Smith (surname) ... (21 Replies)
I would like to recover the data from 3 text tags.
These three markers are located between the tags specific location <tag1> and </tag1> knowing that they are in many places.
In File.txt:
<tag2>txt2</tag2>
<tag3>txt3</tag3>
<tag4>txt4</tag4>
....
<tag1>
<tag2>txt2</tag2>... (3 Replies)
I am trying to have the user select two files from a numbered list which will eventually be turned into a variable then combined. This is probably something simple and stupid that I am doing.
clear
echo "Please Select the Show interface status file"
select FILE1 in *;
echo "Please Select the... (3 Replies)
Discussion started by: dis0wned
3 Replies
LEARN ABOUT NETBSD
uuencode
UUENCODE(5) BSD File Formats Manual UUENCODE(5)NAME
uuencode -- format of an encoded uuencode file
DESCRIPTION
Files output by uuencode(1) consist of a header line, followed by a number of body lines, and a trailer line. The uudecode(1) command will
ignore any lines preceding the header or following the trailer. Lines preceding a header must not, of course, look like a header.
The header line starts with the word ``begin'', a space, a file mode (in octal), a space, and finally a string which names the file being
encoded.
The central engine of uuencode(1) is a six-bit encoding function which outputs an ASCII character. The six bits to be encoded are treated as
a small integer and added with the ASCII value for the space character (octal 40). The result is a printable ASCII character. In the case
where all six bits to be encoded are zero, the ASCII backquote character ` (octal 140) is emitted instead of what would normally be a space.
The body of an encoded file consists of one or more lines, each of which may be a maximum of 86 characters long (including the trailing new-
line). Each line represents an encoded chunk of data from the input file and begins with a byte count, followed by encoded bytes, followed
by a newline.
The byte count is a six-bit integer encoded with the above function, representing the number of bytes encoded in the rest of the line. The
method used to encode the data expands its size by 133% (described below). Therefore it is important to note that the byte count describes
the size of the chunk of data before it is encoded, not afterwards. The six bit size of this number effectively limits the number of bytes
that can be encoded in each line to a maximum of 63. While uuencode(1) will not encode more than 45 bytes per line, uudecode(1) will toler-
ate the maximum line size.
The remaining characters in the line represent the data of the input file encoded as follows. Input data are broken into groups of three
eight-bit bytes, which are then interpreted together as a 24-bit block. The first bit of the block is the highest order bit of the first
character, and the last is the lowest order bit of the third character. This block is then broken into four six-bit integers which are
encoded one by one starting from the first bit of the block. The result is a four character ASCII string for every three bytes of input
data.
Encoded lines of data continue in this manner until the input file is exhausted. The end of the body is signaled by an encoded line with a
byte count of zero (the ASCII backquote character `).
Obviously, not every input file will be a multiple of three bytes in size. In these cases, uuencode(1) will pad the remaining one or two
bytes of data with garbage bytes until a three byte group is created. The byte count in a line containing garbage padding will reflect the
actual number of bytes encoded, making it possible to convey how many bytes are garbage.
The trailer line consists of ``end'' on a line by itself.
SEE ALSO mail(1), uucp(1), uudecode(1), uuencode(1), ascii(7)HISTORY
The uuencode file format appeared in 4.0BSD.
BUGS
The interpretation of the uuencode format relies on properties of the ASCII character set and may not work correctly on non-ASCII systems.
BSD April 9, 1997 BSD