10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I am trying to replace the string in position 26 through 35 of the data file with 10 spaces and I want the remaining file to stay as is, the record length is over 900 characters? I am trying to use the AWK and substr but I am not getting it formatted correctly.
Before... (6 Replies)
Discussion started by: fnwine1500
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2. Linux
Hi,
I have a file like this (about 8 columns in total, this being the 2nd column)
gi_49482297_ref_YP_039521.1_
gi_49482297_ref_YP_039521.1_
gi_49482315_ref_YP_039539.1_
gi_49482315_ref_YP_039539.1_I want to remove the _ at the end of the line.
And at later stages I would want to replace the... (5 Replies)
Discussion started by: Syeda Sumayya
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3. Shell Programming and Scripting
I have pipe separated file with lots of blank spaces.
After using sed -e 's/ *| */|/g' this command ,its giving me output as
TT0000013101640|
HCAMBLAMCNB010|Jul 3 2012 11:14AM|
HARYANA|
Bangali Mohalla |
TCL-UBR|9368040005|9355264655|9218509220|NULL
... (5 Replies)
Discussion started by: sususa
5 Replies
4. Shell Programming and Scripting
I want to remove the trailing spaces at the end of each line starting from a particular position(using ksh script). For example, in the attached file, I want to remove all the spaces starting from the position 430 till the end. The space has to be removed only from the 430th position no matter in... (3 Replies)
Discussion started by: Suryaaravindh
3 Replies
5. Shell Programming and Scripting
I have a file that I need to parse using a script. The dates in the file are displayed in the format:
Mar 2, 2011 9:09:31 PM
I have tried using the date command %e and %l but it pads an extra space for the day and hour if they are single digits.
So this I used a normal date command:
... (6 Replies)
Discussion started by: crazyideas
6 Replies
6. Shell Programming and Scripting
Hello Friends,
Input File looks as follows:
>FASTA Header1
line1
line2
line3
linen
>FASTA Header2
Line1
Line2
linen
>FASTA Header3
and so on
.......
Output:
Want something as:
>FASTA Header1
line1line2line3linen
>FASTA Header2 (5 Replies)
Discussion started by: Deep9000
5 Replies
7. Shell Programming and Scripting
Hello All,
I am trying to remove all tabspaces and all blankspaces from my file using sed & awk, but not getting proper code. Please help me out.
My file is like this (<b> means one blank space, <t> means one tab space)-
$ cat file
NARESH<b><b><b>KUMAR<t><t>PRADHAN... (3 Replies)
Discussion started by: NARESH1302
3 Replies
8. UNIX for Dummies Questions & Answers
Hey,
I'm using the command from this thread https://www.unix.com/unix-dummies-questions-answers/590-converting-list-into-line.html
to convert vertical lines to horzontal lines. But I need to remove the spaces that is created. Unfortunately I can't figure out where the space is in the code..
I... (2 Replies)
Discussion started by: lost
2 Replies
9. Shell Programming and Scripting
hey..
i had a problem with the unix command when i want to remove the white spaces in a string..i guess i cud do it with a sed command but i get an error when i give space in the square brackets..
string="nh hjh llk"
p=`echo $string | sed 's/ //g'`
i donno how to give space charater and... (2 Replies)
Discussion started by: sahithi_khushi
2 Replies
10. UNIX for Dummies Questions & Answers
I stored results like this
VAR=`wc -l < ls.txt`
But the value of the wc gave me a padded number.
How do I strip the padding from $VAR?
Do you think I could use SED?
Except instead of a file input, have a variable redirection input? (2 Replies)
Discussion started by: yongho
2 Replies
expand(1) General Commands Manual expand(1)
NAME
expand, unexpand - Replaces tab characters with spaces or spaces with tab characters
SYNOPSIS
Current syntax
expand [-t tablist] [file...]
unexpand [-a | -t tablist] [file...]
Obsolescent syntax
expand [-tabstop | -tab1,tab2,...,tabn] [file...]
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
expand: XCU5.0
unexpand: XCU5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
OPTIONS
Replaces spaces at the beginning of each line with a tab, and inserts tab characters wherever their presence compresses the resultant file
by replacing two or more characters. When the -t option is specified with the unexpand command, the -a option has no effect. (This option
applies to the unexpand command only.) Specifies the tab stops. The tablist argument consists of a single positive decimal integer or
multiple positive decimal integers, separated by spaces or commas, in ascending order. If a single number is specified, tabs are set tab-
list column positions apart instead of the default (8). If multiple numbers are specified, tabs are set at those specific column posi-
tions. Tabbing to tab stop position n thus causes the next character output to be in the (n+1)th column position on that line.
If expand has to process a tab character at a position beyond the last of those specified in a multiple tab stop list, the tab char-
acter is replaced by a single space in the output. Sets tab stops tabstop spaces apart instead of the default (8). (Obsolescent)
Sets tab stops at specified columns. (Obsolescent)
[Tru64 UNIX] Columns are measured in bytes.
OPERANDS
The path name of a file to be processed. If you do not specify this operand, standard input is read.
DESCRIPTION
The expand command changes tab characters to spaces in the named files, or the standard input, and writes the result to the standard out-
put.
The unexpand command puts tab characters into the data from the standard input, or the named files, and writes the result to the standard
output.
Backspace characters are preserved in the output and decrement the column count for tab calculations. The column position count cannot be
decremented below one. The expand command is useful for preprocessing character files (before sorting, looking at specific columns, and so
on.) that contain tab characters.
By default, unexpand converts only spaces that are within sequences of spaces and tab characters at the beginnings of lines. Use -a to
convert other sequences of spaces.
NOTES
If the expand command encounters difficulties opening any specified file, it writes an error message to standard error and terminates imme-
diately with an error status.
If the unexpand command encounters difficulties opening any specified file, it writes an error message to standard error and continues
operation. The exit status will reflect the error.
EXIT STATUS
The following exit values are returned by either command: Successful completion. An error occurred.
EXAMPLES
To replace tab characters in file with spaces, enter: expand file To replace the spaces in file with tab characters, enter: unexpand -a
file
ENVIRONMENT VARIABLES
The following environment variables affect the execution of expand and unexpand: 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 inter-
nationalization variables 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 multibyte characters in arguments). 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: fold(1), tabs(1)
Standards: standards(5)
expand(1)