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1. UNIX for Advanced & Expert Users
Gurus
I am running an AIX 7.1 system and have come across a strange issue.
I am trying to delete files from a folder using standard 'rm' syntax. After i delete the files , files re-appear again.
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2. Linux
hi i know this is irrelevant to the question above but i was wondering how to pt a restriction in the filename in linux. I want that it is impossible to add numbers into the filename, help will be rely great , thanx!
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3. UNIX for Dummies Questions & Answers
I have a text file with 1000 lines, I want to randomly select 200 lines from it and print them as output. How do I go about doing that? Thanks! (7 Replies)
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4. Shell Programming and Scripting
sed -e "s// /g" old.txt > new.txt
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5. Shell Programming and Scripting
What I have are two text files that I need to shuffle randomly, but I need the two files to be randomly shuffled the same way. I have heard of shuf but I do not know how to use it for two files. Maybe there is also an easy/simple awk command I do not know about that could handle this problem.
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6. UNIX for Dummies Questions & Answers
HI guys,
Could you help me writing a simple version control script for a text files.
the format could be
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9. Shell Programming and Scripting
Can anyone seem to know how to find out whether a UNIX text file has 'hidden' control characters?
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Your intelletual answers are... (6 Replies)
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10. Shell Programming and Scripting
Hi ,
I have special character control M in many of my files as below
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77 0ustar jayusers## -*- Perl -*-^M
^M
use ExtUtils::MakeMaker qw(WriteMakefile);^M
^M
WriteMakefile(NAME => "Net::Telnet",^M
... (4 Replies)
Discussion started by: Mohammed
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asa(1) General Commands Manual asa(1)
NAME
asa - Interprets carriage-control characters
SYNOPSIS
asa [file...]
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
asa: XCU5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
OPTIONS
None
OPERANDS
The pathname of a file to be read. If this parameter is omitted, standard input is read.
DESCRIPTION
The asa command writes its input files to standard output, mapping carriage-control characters from the text files to line-printer control
sequences.
The first character of every input line is removed and, depending on the character removed, an action performed on that character and the
rest of the line. If the character removed is: The rest of the line is output without change. A newline character is output, followed by
the rest of the input line. A form-feed character is output, followed by the rest of the input line. The newline character of the previ-
ous line is replaced with a carriage-return character, which is output, followed by the rest of the input line. If + is the first character
in the input, + has the same effect as the space character. [Tru64 UNIX] The character is output, followed by the rest of the input line.
EXIT STATUS
The following exit values are returned: Successful completion. An error occurred.
EXAMPLES
To view a file (created by a program using FORTRAN-style carriage control characters) on a terminal: asa file To format the FORTRAN output
of a.out and direct it to the printer: a.out | asa | lp
ENVIRONMENT VARIABLES
The following environment variables affect the execution of asa: Provides a default value for the internationalization variables that are
unset or null. If LANG is unset or null, the corresponding value from the default locale is used. If any of the internationalization vari-
ables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value,
overrides the values of all the other internationalization variables. Determines the locale for the interpretation of sequences of bytes
of text data as characters (for example, single-byte as opposed to multi-byte characters in arguments and input files). Determines the
locale for the format and contents of diagnostic messages written to standard error. Determines the location of message catalogues for the
processing of LC_MESSAGES.
SEE ALSO
Commands: lp(1)
Standards: standards(5)
asa(1)