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UNIX for Dummies Questions & Answers
deleting white spaces
Post 47501 by cary530 on Wednesday 11th of February 2004 05:42:00 PM
02-11-2004
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1. Shell Programming and Scripting
hi all...
i have the next question:
i have a flat file with a lot of records (lines). Each record has 10 fields, which are separated by pipe (|). My problem is what sometimes, in the first record, there are white spaces (no values, nothing) in the beginning of the record, like this:
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I have a variable that calls in a string from txt file. Problem is the string comes with an abundance of white spaces trailing it. Is there any easy way to trim the tailing white spaces off at the end? Thanks in advance. (9 Replies)
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Hi,
Can anybody suggest me how to combine two strings with two or more white spaces and assign it to a variable?
E.g.
first=HAI
second=HELLO
third="$first $second" # appending strings with more than one white spaces
echo $third
this would print
HAI HELLO
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Hi,
I have a file that has multiple spaces between characters. I want to delete or convert the multiple spaces into a single space. I think this can be done in "sed" but I only know the syntax to delete trailing or leading spaces. Can this be done with "sed" or awk?
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Hello Guys,
I am a newbie to unix. I am having a requirement. Please help me for finding a solution for this,
I am having a file as mentioned below:
$ cat shank
ackca
acackac akcajc akcjkcja akcj
ckcklc
I want to delete all the white spaces in this file,
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Hi All,
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Hi,
I am having problem in deleting the leading spaces:-
cat x.csv
baseball,NULL,8798765,Most played
baseball,NULL,8928192,Most played
baseball,NULL,5678945,Most played
cricket,NOTNULL,125782,Usually played
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Hi;
In following code
find LOG_DIR -type f | while read filename; do echo $filename; done
I want to precede each white space encountered in filename with \ so that when i use $filename for running some commands in do...done,it wont give me an error.
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Hello!
I have one problem with my bash script - I would like to be able to read white space characters from stdin (for example single " ") - can I acomplish that somehow? I need to read only one character at the time, so I use read -s -n 1 var but it doesn't work for whitespaces apparently.
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mail::spamassassin::plugin::replacetags
Mail::SpamAssassin::Plugin::ReplaceTags(3pm) User Contributed Perl Documentation Mail::SpamAssassin::Plugin::ReplaceTags(3pm) NAME
Mail::SpamAssassin::Plugin::ReplaceTags - tags for SpamAssassin rules The plugin allows rules to contain regular expression tags to be used in regular expression rules. The tags make it much easier to maintain complicated rules. Warning: This plugin relies on data structures specific to this version of SpamAssasin; it is not guaranteed to work with other versions of SpamAssassin. SYNOPSIS
loadplugin Mail::SpamAssassin::Plugin::ReplaceTags replace_start < replace_end > replace_tag A [a@] replace_tag G [gk] replace_tag I [il|!1y?xccxcdxcexcfxecxedxeexef] replace_tag R [r3] replace_tag V (?:[vu]|\/) replace_tag SP [s~_-] body VIAGRA_OBFU /(?!viagra)<V>+<SP>*<I>+<SP>*<A>+<SP>*<G>+<SP>*<R>+<SP>*<A>+/i describe VIAGRA_OBFU Attempt to obfuscate "viagra" replace_rules VIAGRA_OBFU RULE DEFINITIONS AND PRIVILEGED SETTINGS
replace_tag tagname expression Assign a valid regular expression to tagname. Note: It is not recommended to put quantifiers inside the tag, it's better to put them inside the rule itself for greater flexibility. replace_pre tagname expression Assign a valid regular expression to tagname. The expression will be placed before each tag that is replaced. replace_inter tagname expression Assign a valid regular expression to tagname. The expression will be placed between each two immediately adjacent tags that are replaced. replace_post tagname expression Assign a valid regular expression to tagname. The expression will be placed after each tag that is replaced. replace_rules list_of_tests Specify a list of symbolic test names (separated by whitespace) of tests which should be modified using replacement tags. Only simple regular expression body, header, uri, full, rawbody tests are supported. replace_start string replace_end string String(s) which indicate the start and end of a tag inside a rule. Only tags enclosed by the start and end strings are found and replaced. perl v5.14.2 2011-06-06 Mail::SpamAssassin::Plugin::ReplaceTags(3pm)