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UNIX for Dummies Questions & Answers
Remove last character in each line
Post 302759563 by locoroco on Tuesday 22nd of January 2013 02:16:19 PM
01-22-2013
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10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I need to put the single line contents of a file into a variable, but remove the last character, for example the file would have this sort of contents:
2;4;3;10;67;54;96;
And I want the variable to be:
2;4;3;10;67;54;96 (notice the last ";" has gone).
Unfortunately I can't just... (4 Replies)
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Here is a sample code
grep '903' -i user.txt | tail -2 | awk '{print $2}' | sed 's/B//g'
the input file has data as such
903-xxx-xxxxB
903-xxx-xxxxB
It is a dialer file i want to remove the "B"
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Hello Experts,
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#a1=a2
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#c1=c2
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I have data coming in 4 columns and there are new line characters \n in between the data. I need to remove the new line characters in the middle of the row and keep the \n character at the end of the line.
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Hi everyone,
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Hi,
I have a file with lines such as the below. I want to remove the comma only if it is the first character on a line. I can't work out how to do this using sed.
*ELSET, ELSET=WHEEL_TD2
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, 260, 282, 283, 285, 286,... (2 Replies)
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Good afternoon:
im working wih 2 files to find differences and use the cmp command
cmp file1 file2
file1 file2 are are diifferent char 302 line1
i found what the difference is with the sed command and that is the file1 at the end of every line has a (,) (comma) character.
i.e
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Hi All,
Could any one suggest how to remove $ symbol in a text file when i am opening in vi editor.
Scenario;
For example iam having a file name aaa.txt the data inside the file is like
sample
name
when i am opening in vi editor
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Hi,
I am a newbie to shell scripting (.sh). Please guide me on how to do the below issue.
My input file has below data.
I want to remove $ sysmbol from the fourth column of each line. (ie, between 4th and 5th pipe symbol)
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LEARN ABOUT DEBIAN
cw
CW(7) Miscellaneous Information Manual CW(7) NAME
CW - the international Morse code DESCRIPTION
CW is an abbreviation for "continuous wave", the commonly used technical term for Morse code communication. A basic knowledge or under- standing of Morse code is a requirement for Radio Amateurs and Marine Radio Operators in many parts of the world. MORSE CODE TIMINGS In Morse code, a dot or dash is referred to as an element. The basic timing unit is the dot period. This is the time taken to send a dot, not including any space before or after the dot. The lengths of all other elements are then derived from this basic unit, using the fol- lowing rules: The duration of a dash is three dots. The time between each element (dot or dash) is one dot length. The space between characters is three dot lengths. The space between words is seven dot lengths. The following formula calculates the dot period in microseconds from the Morse code speed in words per minute: dot period = ( 1200000 / speed ) This formula arises from the use of the word PARIS as a 'standard' word for calibrating Morse code speed. PARIS is 50 units long when sent in Morse code. Analysis of English plain-text indicates that the average word is 50 units, including spaces. MORSE CODE CHARACTERS The following list shows the IS0 8859-1 (Latin-1) characters that have commonly understood representations in Morse code: ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"$()+-./:;=?_@ and space In addition, following ISO 8859-1 and ISO 8859-2 accented characters are also part of the generally accepted international Morse code: UACOEEANS (S with cedilla), (Z with caron/hacek), Finally, libcw adds the following ASCII characters as extensions to single character procedural signals: <>!&^~ MORSE CODE CHARACTER TABLES The following table shows the Morse code equivalents for the ISO 8859-1, accented ISO 8859-1, and accented ISO 8859-2 characters above. The ASCII portion of this table is taken from the ARRL Handbook, and the accented extensions from various other sources: Ch Code Ch Code Ch Code Ch Code ------------------------------------------------------- A .- B -... C -.-. D -.. E . F ..-. G --. H .... I .. J .--- K -.- L .-.. M -- N -. O --- P .--. Q --.- R .-. S ... T - U ..- V ...- W .-- X -..- Y -.-- Z --.. 0 ----- 1 .---- 2 ..--- 3 ...-- 4 ....- 5 ..... 6 -.... 7 --... 8 ---.. 9 ----. " .-..-. ' .----. $ ...-..- ( -.--. ) -.--.- + .-.-. , --..-- - -....- . .-.-.- / -..-. : ---... ; -.-.-. = -...- ? ..--.. _ ..--.- Ch Code Ch Code ------------------------------------------------- U ..-- A .-.- C -.-.. O ---. E ..-.. A .-..- A .--.- N --.-- S (S+cedilla) ---- (Z+caron/hacek) --..- In addition to the above standard characters, the following characters are conventionally used for punctuation and procedural signals as follows: Ch Code Ch Code Ch Code Ch Code ------------------------------------------------------- " .-..-. ' .----. $ ...-..- ( -.--. ) -.--.- + .-.-. , --..-- - -....- . .-.-.- / -..-. : ---... ; -.-.-. = -...- ? ..--.. _ ..--.- @ .--.-. and the following are non-conventional extensions implemented by libcw: Ch Code Ch Code Ch Code Ch Code ----------------------------------------------------- < ...-.- > -...-.- ! ...-. & .-... ^ -.-.- ~ .-.-.. An alternative view of punctuation and procedural signals is as combination Morse characters: Ch Prosig Ch Prosig Ch Prosig Ch Prosig --------------------------------------------------------- " [AF] ' [WG] $ [SX] ( [KN] ) [KK] + [AR] , [MIM] - [DU] . [AAA] / [DN] : [OS] ; [KR] = [BT] ? [IMI] _ [IQ] @ [AC] < [VA],[SK] > [BK] ! [SN] & [AS] ^ [KA] ~ [AL] NOTES
Despite the fact that this manual page constantly and consistently refers to Morse code elements as dots and dashes, DO NOT think in these terms when trying to learn Morse code. Always think of them as 'dit's and 'dah's. SEE ALSO
Man pages for libcw(3,LOCAL), cw(1,LOCAL), cwgen(1,LOCAL), cwcp(1,LOCAL), and xcwcp(1,LOCAL). CW Tutor Package CW(7)