Sponsored Content
Top Forums Shell Programming and Scripting Add words in beginning , end after removing a word in a file Post 302916390 by junior-helper on Tuesday 9th of September 2014 04:34:46 PM
Old 09-09-2014
Code:
sed -r 's#^/dev(.*)$#echo 1 > /sys/block\1/device/rescan#' infile > outfile

Smilie
This User Gave Thanks to junior-helper For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

cat a file from end to beginning

Is there an option, for cat, head, tail, or is there any way, to display a file from last line to first? For example, my file looks like this: aaaa bbbb cccc eeee and I would like to print or display it like this: eeee cccc bbbb aaaa thanks (5 Replies)
Discussion started by: jpprial
5 Replies

2. Shell Programming and Scripting

Add a word at the end of each line in a file

Hi I want to read a flat file and add a word/value at the end of each line in the file and store the output in a temporary file. How can i do this? Plz help me with this. Regards, Saurabh (6 Replies)
Discussion started by: bhalotias
6 Replies

3. UNIX for Dummies Questions & Answers

Remove words beginning with a certain character from a file

Hi, how could you go about removing words that begin with a certain character. assuming that this character is '-' I currently have echo "-hello" | sed s/-/""/ which replaces the leading dash with nothing but I want to remove the whole word, even if there are multiple words beginning... (3 Replies)
Discussion started by: skinnygav
3 Replies

4. Shell Programming and Scripting

trying to add text to beginning and end of each line

Well here goes: I tried to write a batch file that adds a specific fixed text to each line of an already existing text file. for the adding text infront of each line I tried this: for /F "delims=" %%j in (list.txt) do echo.STARTTEXT\%%j >> list.txt for adding text after each line I... (0 Replies)
Discussion started by: pasc
0 Replies

5. UNIX for Dummies Questions & Answers

Add word/value at the beginning of each line in a file

how to add value/word at the beginning of each line in a file ? i have file number.txt and the output is below 1000 1001 1002 1003 1004 i want to add 000 at the beginning of each line, desire output is below 0001000 0001001 0001002 0001003 0001004 and so on please advise how... (5 Replies)
Discussion started by: jason6247
5 Replies

6. UNIX for Dummies Questions & Answers

sed - Add a variable line to the end of a block beginning with a regex

Hi, Need some help with sed. I have a file that has sections : e.g. a=blah b=blah d=blah e=blah There's many sections in the file. (1 Reply)
Discussion started by: andyatit
1 Replies

7. Shell Programming and Scripting

Removing hyphen from beginning and end of a word only.

It is very simple to remove a hyphen from a word anywhere in that word using a simple sed command (sed -i 's/-//g' filename), but I am not able to figure out how to do this: For example, apple -orange tree pipe- banana-shake dupe- What my output should look like: apple orange tree... (1 Reply)
Discussion started by: shoaibjameel123
1 Replies

8. Shell Programming and Scripting

Add new line at beginning and end of a file

Hi, I have a specific requirement to add text at the beginning and end of a plain text file. I tried to use "sed" with '1i' and '$a' flags but these required two separate "sed" commands separated with "|". I am looking for some command/option to join these two in single command parameter. ... (6 Replies)
Discussion started by: bhupinder08
6 Replies

9. UNIX for Beginners Questions & Answers

View a file and count all words beginning with specificletter

I am trying to write a command and need to count all the words within the file which begin with the letter S I have run this command $ grep '^' TheAgileApproach.dat | wc -l 0 $ grep '^' TheAgileApproach.dat | wc -l 1 When I remove the wc -l I see the output as below: $ grep '^'... (7 Replies)
Discussion started by: simpsa27
7 Replies

10. Shell Programming and Scripting

Selecting text on multiple lines, then removing a beginning and end patterns

I have a file similar to the below. I am selecting only the paragraphs with @inlineifset. I am using the following command sed '/@inlineifset/,/^ *$/!d; s/@inlineifset{mrg, @btpar{@//' $flnm >> $ofln This produces @section Correlations between seismograms,,,,}} ... (5 Replies)
Discussion started by: Danette
5 Replies
FDFORMAT(8)						     Linux Programmer's Manual						       FDFORMAT(8)

NAME
fdformat - Low-level formats a floppy disk SYNOPSIS
fdformat [ -n ] device DESCRIPTION
fdformat does a low level format on a floppy disk. device is usually one of the following (for floppy devices, the major = 2, and the minor is shown for informational purposes only): /dev/fd0d360 (minor = 4) /dev/fd0h1200 (minor = 8) /dev/fd0D360 (minor = 12) /dev/fd0H360 (minor = 12) /dev/fd0D720 (minor = 16) /dev/fd0H720 (minor = 16) /dev/fd0h360 (minor = 20) /dev/fd0h720 (minor = 24) /dev/fd0H1440 (minor = 28) /dev/fd1d360 (minor = 5) /dev/fd1h1200 (minor = 9) /dev/fd1D360 (minor = 13) /dev/fd1H360 (minor = 13) /dev/fd1D720 (minor = 17) /dev/fd1H720 (minor = 17) /dev/fd1h360 (minor = 21) /dev/fd1h720 (minor = 25) /dev/fd1H1440 (minor = 29) The generic floppy devices, /dev/fd0 and /dev/fd1, will fail to work with fdformat when a non-standard format is being used, or if the for- mat has not been autodetected earlier. In this case, use setfdprm(8) to load the disk parameters. OPTIONS
-n No verify. This option will disable the verification that is performed after the format. SEE ALSO
fd(4), setfdprm(8), mkfs(8), emkfs(8) AUTHOR
Werner Almesberger (almesber@nessie.cs.id.ethz.ch) Linux 0.99 1 February 1993 FDFORMAT(8)
All times are GMT -4. The time now is 05:56 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy