sed 's/^..//' file1.txt > file2.txt
this will remove the first two characters of each line of a text file, what sed command will remove the last two characters? This is a similar post to my other....sry if I'm being lazy....
I need a file like this (same as last post)
>cat file1.txt
10081551... (1 Reply)
Hi All,
i am trying to remove all special charecters().,/\~!@#%^$*&^_- and others from a tab delimited file.
I am using the following code.
while read LINE
do
echo $LINE | tr -d '=;:`"<>,./?!@#$%^&(){}'|tr -d "-"|tr -d "'" | tr -d "_"
done < trial.txt > output.txt
Problem
... (10 Replies)
Problem: I have a lot of files, the files first line should always have 4 spaces before any text. Occasionally some of the files will miss the leading spaces and it's a problem. This is only in the first line.
So if there are 4 spaces then text, do nothing. If there are not 4 spaces, add 4... (2 Replies)
I tried using below command
tr -cd "" < InputFile.xml > output.txt ============= This removes all the tabs/newline/extra spaces from a file
it successfully removed all the extra spaces,tabs and new line characters but then the complete file become one record. I want to retain one new line... (1 Reply)
I am using flatfile, in that flat file we are getting the junk chars
1)I21001f<82>^Me<85>!h49 Service Charge
2) I21001f‚
e...!h49 Service Charge
please tell me how to remove all junk chars in unix scripts. (1 Reply)
I have test.xml XML file like
<Report account="123456" start_time="2014-09-08T00:00:00+00:00" end_time="2014-09-10T23:59:59+00:00" user="Dollar Tree" limit="1000000" more_sessions="some text ">
<Session ......rest of xml...............
I need output like
<Report>
<Session ......rest of... (3 Replies)
I want to remove 1st and last two characters of each line of the file
Ex: file1
zzfile1ee
@xfile2:y
qfile3>>
@ file4yy
and redirect to the file called new
Basically file will have any charcter including space, spical character...
Please help.... (7 Replies)
Trying to use sed to, in-place, remove specific text from a file. Since there are / in the text I use | to escape that character. Thank you :).
sed -i -e 's|xxxx://www.xxx.com/xx/xx/xxx/.*/|' /home/cmccabe/list
sed: -e expression #1, char 51: unterminated `s' command (4 Replies)
I have a file as below
Emp1|FirstName|MiddleName|LastName|Address|Pincode|PhoneNumber
1234|FirstName1|MiddleName2|LastName3| Add1 || ADD2|123|000000000
2345|FirstName2|MiddleName3|LastName4|
Add1 || ADD2|
234|000000000
OUTPUT :
... (1 Reply)
Discussion started by: styris
1 Replies
LEARN ABOUT DEBIAN
bbe
BBE(1)BBE(1)NAME
bbe - binary block editor
SYNOPSIS
bbe [options]...
DESCRIPTION
bbe is a sed-like editor for binary files. It performs binary transformations on the blocks of input stream.
OPTIONS
bbe accepts the following options:
-b, --block=BLOCK
Block definition.
-e, --expression=COMMAND
Add the COMMAND to the commands to be executed.
-f, --file=script-file
Add the contest of script-file to commands.
-o, --output=name
Write output to name instead of standard output.
-s, --suppress
Suppress normal output, print only block contents.
-?, --help
List all available options and their meanings.
-V, --version
Show version of program.
BLOCK can be defined as:
N:M Where N'th byte starts a M bytes long block (first byte is 0).
:M Block length in input stream is M.
/start/:M
String start starts M bytes long block.
/start/:/stop/
String start starts the block and block ends to string stop.
/start/:
String start starts the block and block will end at next occurence of start. Only the first start is included to the block.
:/stop/
Block starts at the beginning of input stream (or at the end of previous block) and ends at the next occurrence of stop. String stop
will be included to the block.
Special value '$' of M means the end of stream.
Default value for block is 0:$, meaning the whole input stream.
Both start and stop strings are included to block. Nonprintable characters can be escaped as
nn decimal
xnn hexadecimal
nnn octal
Character '' can be escaped as '\'. Escape codes 'a','',' ','
','v','f','
' and ';' can also be used.
Length (N and M) can be defined as decimal (n), hexadecimal (xn) or octal (0n) value.
COMMAND SYNOPSIS
bbe has two type of commands: block and byte commands, both are allways related to current block. That means that the input stream outside
of block remains untouched.
Block commands
D [n] Delete the n'th block. Without n, all found blocks are deleted from the output stream.
I string
Insert the string string before the block.
A string
Append the string string at the end of block.
J n Skip n blocks before executing commands after this command.
L n Leave all blocks unmodified starting from block number n. Affects only commands after this command.
N Before printing a block, the file name in which the block starts is printed.
F f Before printing a block, the input stream offset at the begining of the block is printed. f can be H, D or O for Hexadecimal, Deci-
mal or Octal format of offset.
B f Before printing a block, the block number is printed (first block == 1) f can be H, D or O for Hexadecimal, Decimal or Octal format
of block number.
> file Before printing a block, the contents of file file is printed.
< file After printing a block, the contents of file file is printed.
Byte commands
n in byte commands is offset from the beginning of current block (starts from zero).
r n string
Replace bytes starting at position n with string string.
i n string
Insert string starting at position n.
p format
The contents of block is printed in format defined by format. format can have any of the formats H, D, O, A and B for Hexadecimal,
Decimal, Octal, Asciii and Binary.
s/search/replace/
Replace all occurrences of search with replace.
y/source/dest/
Translate bytes in source to the corresponding bytes in dest. Source and dest must have equal length.
d n m|*
Delete m bytes starting from the offset n. If * is defined instead of m, then all bytes starting from n are deleted.
c from to
Convert bytes from format from to to. Currently supported formats are:
BCD Binary coded decimal
ASC Ascii
j n Commands after the j-command are ignored for first n bytes of the block.
l n Commands after the l-command are ignored from n'th byte of the block.
w file Write bytes from the current block to file file. Commands before w-command have effect to what will be written. %B or %nB in file
will be replaced by current block number. n in %nB is field length, leading zero in n causes the block number to be left padded with
zeroes.
& c Performs binary and with c.
| c Performs binary or with c.
^ c Performs binary xor with c.
~ Performs binary negation.
u n c All bytes from start of the block to offset n are replaced by c.
f n c All bytes starting from offset n to end of the block are replaced by c.
x Exchange the contents of nibbles (half an octet) of bytes.
Nonvisible characters in strings can be escaped same way as in block definition strings. Character '/' in s and y commands can be any visi-
ble character.
Note that the D, A, I, F, B, c, s, i, y, p, <, > and d commands cause the length of input and output streams to be different.
EXAMPLES
bbe -e "s/c:\temp\data1.txt/c:\temp\data2.txt/" file1
all occurences of "c: empdata1.txt" in file file1 are changed to "c: empdata2.txt"
bbe -b 0420:16 -e "r 4 x12x4a" file1
Two bytes starting at fifth byte of a 16 byte long block starting at offset 0420 (octal) in file1 are changed to hexadecimal values
12 and 4a.
bbe -b :16 -e "A x0a" file1
Newline is added after every block, block length is 16.
SEE ALSO sed(1).
AUTHOR
Timo Savinen <tjsa@iki.fi>
2006-11-02 BBE(1)
06-09-2009
