09-07-2008
Tough Substituion command
I have lines like:
Mg2.qns W=0.175u
Mg2.qpsb W=0.175u
Mg4.qns W=0.175u
Mg4.qpsb W=0.175u
Which I need to become:
Mg2.qns W=wmg2qns
Mg2.qpsb W=wmg2qpsb
Mg4.qns W=wmg4qns
Mg4.qpsb W=wmg4qpsb
To acheive this individually line by line I use a command like:
:g/Mg2\.qns/s/W=.*/W=wmg2qns/
However I wish to acheive this for all lines in one command
I can find all the lines containing the concerned words by using:
:g/Mg[24]\.q[np]s/s/??????????????????????
I do not know how to fill up the second part of the command represented by question marks. Any idea?
8 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Folks,
I've been trying to use the ENV variable with slashes(/) in its value inside the sed substitution..
Sed 's/myval/'$MYVAL'/' file1 >> file.tmp
If MYVAL=<sometext>, it works.
if MYVAL=/home/venkat, it doesnt.
***************************
bash-2.05$ export VAL=/home/venkat... (5 Replies)
Discussion started by: gvsreddy_539
5 Replies
2. Shell Programming and Scripting
@xray =~ s/^ *//g;
@xray =~ s/ *$//g;
@xray =~ s/\s+/ /g;
Guess I have a two part question ...
First
Is there a way to make substitutions, remove leading spaces, trailing spaces, and crunch multiple spaces into a single space, to the entire array, or must the substitutions be done on on... (1 Reply)
Discussion started by: popeye
1 Replies
3. Solaris
Dear All
i am getting "bad substituion" error in the follwing piece of code when i run from crontab.however it works if i run directly from my machine.
#!/bin/bash
for i in `cat abc`
do
part1=${i:0:12} ;
part2=${i:13:27} ;
echo "$part1,$part2">> def
done (1 Reply)
Discussion started by: asadlone
1 Replies
4. UNIX for Dummies Questions & Answers
I have a string as "Period= 20090531 Client Name= Clayton Lumbar Company Destination= MD"
I want to parse the string and store it in 3 different variables.
$period (should get value 20090531)
$client (should get value "Clayton Lumbar company")
$dest (should get value MD)
How can I do... (3 Replies)
Discussion started by: paruthiveeran
3 Replies
5. UNIX for Advanced & Expert Users
How Can this logic be implemented in Unix
SELECT
B.SERVICE_TYPE || '|' ||
B.TOTAL_TYPE || '|' ||
B.CALL_INDICATOR || '|' ||
B.A_NUMBER || '|' ||
B.APN || '|' ||
B.DAY || '|' ||
B.HOUR ||... (3 Replies)
Discussion started by: magedfawzy
3 Replies
6. Shell Programming and Scripting
hello everyone!:)
I have an exercise which I think is difficult for beginner like me. Here is the exercise
Create a shell script, which takes a directory as command line argument.
Script displays ten first lines from every text file in that directory. After
displaying the lines from the... (1 Reply)
Discussion started by: googlevn
1 Replies
7. Shell Programming and Scripting
I have a file with 20 blank spaces.
I want to substitute each blank space for a string, and part of that string should include an incremental number
Code
while read line3
do
awk -v var=${line3} '{i=var; sub("^]*$", "\\&\n@target G0.S"'$i'"\n@type xy"); print $0}'... (1 Reply)
Discussion started by: chrisjorg
1 Replies
8. UNIX for Beginners Questions & Answers
Hi Folks -
I'm getting the following error message when executing my script:
$ chmod +x Winexe_Admin.sh
$ ./Winexe_Admin.sh
Script Name: Winexe_Admin.sh
Script Name without EXT: Winexe_Admin
./Winexe_Admin.sh: line 43: ${_MAINPATH}${_LOGPATH}${LOGPATH$}${_YEAR}_${_MONTH}${_DAY}: bad... (2 Replies)
Discussion started by: SIMMS7400
2 Replies
fmt(1) General Commands Manual fmt(1)
NAME
fmt - format text
SYNOPSIS
width] [file...]
DESCRIPTION
The command is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in
the width option. The default width is 72. concatenates the arguments. If none are given, formats text from the standard input.
Blank lines are preserved in the output, as is the spacing between words. does not fill lines beginning with a period for compatibility
with Nor does it fill lines starting with
Indentation is preserved in the output and input lines with differing indentation are not joined (unless is used).
can also be used as an in-line text filter for the command:
reformats the text between the cursor location and the end of the paragraph.
Options
recognizes the following options:
Crown margin mode.
Preserve the indentation of the first two lines within a paragraph and align the left margin of each subsequent line with that
of the second line. This is useful for tagged paragraphs.
Split lines only.
Do not join short lines to form longer ones. This prevents sample lines of code, and other such "formatted" text, from being
unduly combined.
Fill output lines to up to
width columns.
WARNINGS
The width option is acceptable for BSD compatibility, but it may go away in future releases.
SEE ALSO
nroff(1), vi(1).
fmt(1)