Inserting n characters to beginning of line if match
I would like to insert n number of characters at the beginning of each line that starts with a given character. If possible, I would be most appreciative for a sed or awk solution.
Given the data below, I would like to be able to insert either 125 spaces or 125 "-" at the beginning of every line that begins with "@".
Hi,
I have a file which contains many occurances of a string say "hellosunil".
I want to insert a newline charcater after all the "hellosunil" strings in the file.
trying to use sed,
sed -e 's/hellosunil/\\nhellosunil/g' file1
sed help says u cannot substitute a regular expression... (6 Replies)
Hi ,
the fog is fulling my brain after holidays , somebody can help me ?
I have a file in input like that :
toto
tata
tutu
and trying with awk to insert the compete file string as :
/dir1/dir2/toto
/dir1/dir2/tata
/dir1/dir2/tutu
i used to write :
awk 'BEGIN {FS="\\"} {print... (4 Replies)
hello all,
I wonder if anybody might be able to help with this.
I have file 1 and file2.
Both files may contain thousands of lines that have variable contents.
file1
234GH
5234BTW
89er
678tfg
234
234YT
tfg456
wert
78gt
gh23444 (7 Replies)
Hi,
I am looking for any script which can do the following.
have to read a pattern from fileA and copy it to fileB.
fileA:
...
...
Header
...
...
..p1
...
...
fileB:
....
....
Header (3 Replies)
How can I specify special meaning characters like ^ or $ inside a regex range. e.g
Suppose I want to search for a string that either starts with '|' character or begins with start-of-line character.
I tried the following but it does not work:
sed 's/\(\)/<do something here>/g' file1
... (3 Replies)
Hi,
I was trying to remove the blank from beginning of a line.
when I try:
sed 's/^ +//' filename
it does not work
but when I try
sed 's/^ *//' filename
it works
But I think the first command should have also replaced any line with one or more blanks.
Kindly help me in understanding... (5 Replies)
Here is my file:
700 7912345678910
61234567891234567891
700 8012345678910
61234567891234567891
I want to pull all lines that begin with '700' only if columns 11-12 are '79'.
My code so far only pulls the '79', not the whole line:
grep ^700 file1 | cut -c 11,12 |... (7 Replies)
I have been trying to insert a line after a regex but I can't do it. Here is the code I am using:
cat saved_doc
SET type = type1
SET type = STORE = y
/vol/san_e1
/vol/san_5
/vol/san_e9
/vol/san_e11
/vol/san_e12
/vol/san_e13
/vol/san_e14
/vol/san_e16
/vol/san_e17
/vol/san_e18... (4 Replies)
Hi,
I have been searching how to do this but I can't seem to find how to do it. Hopefully someone can help.
I have multiplr files, 100's example 12345-zxys.213423.zyz.txt. I want to be able to take all these files and remove the first '12345-' from each of the files. '12345-' these characters... (5 Replies)
Discussion started by: israr75
5 Replies
LEARN ABOUT NETBSD
orders
ORDERS(7) BSD Miscellaneous Information Manual ORDERS(7)NAME
orders -- orders of magnitude
DESCRIPTION
The following table lists common multiples of bytes.
Name Prefix Power of 2 Power of 10
Kilobyte kB 2^10 10^3
Megabyte MB 2^20 10^6
Gigabyte GB 2^30 10^9
Terabyte TB 2^40 10^12
Petabyte PB 2^50 10^15
Exabyte EB 2^60 10^18
Zettabyte ZB 2^70 10^21
Yottabyte YB 2^80 10^24
The following table lists common bit rates as a power of ten.
Name Prefix Bit per second Byte per second
Bit per second bit/s 1 0.125
Byte per second B/s 8 1
Kilobit per second kbit/s 10^3 125
Kilobyte per second kB/s 8 * 10^3 1000
Megabit per second Mbit/s 10^6 125000
Megabyte per second MB/s 8 * 10^6 1000000
Gigabit per second Gbit/s 10^9 125000000
Gigabyte per second GB/s 8 * 10^9 1000000000
Terabit per second Tbit/s 10^12 125000000000
Terabyte per second TB/s 8 * 10^12 1000000000000
The following table lists common orders of magnitude as a power of ten.
Name Order Prefix Symbol Decimal
Septillionth 10^-24 yocto y 0.000000000000000000000001
Sextillionth 10^-21 zepto z 0.000000000000000000001
Quintillionth 10^-18 atto a 0.000000000000000001
Quadrillionth 10^-15 femto f 0.000000000000001
Trillionth 10^-12 pico p 0.000000000001
Billionth 10^-9 nano n 0.000000001
Millionth 10^-6 micro mu 0.000001
Thousandth 10^-3 milli m 0.001
Hundredth 10^-2 centi c 0.01
Tenth 10^-1 deci d 0.1
One 10^0 - - 1
Ten 10^1 deca da 10
Hundred 10^2 hecto h 100
Thousand 10^3 kilo k 1000
Million 10^6 mega M 1000000
Billion 10^9 giga G 1000000000
Trillion 10^12 tera T 1000000000000
Quadrillion 10^15 peta P 1000000000000000
Quintillion 10^18 exa E 1000000000000000000
Sextillion 10^21 zetta Z 1000000000000000000000
Septillion 10^24 yotta Y 1000000000000000000000000
SEE ALSO units(1), strsuftoll(3), number(6)STANDARDS
There have been various attempts to standardize the set of binary prefixes. Organizations such as International Electrotechnical Commission
(IEC) have proposed new prefixes such as ``kibi'', ``mebi'', ``gibi'', and ``yobi'', but the adoption has been slow at best.
BSD August 6, 2011 BSD