Sponsored Content
Top Forums Shell Programming and Scripting Trying to display a tab character in variable Post 302305806 by rowlf on Thursday 9th of April 2009 07:21:12 PM
Old 04-09-2009
Trying to display a tab character in variable

Hi,

I'm trying to figure out a way to encapsulate a tab character, or four or five space characters into a string variable to be used in my script. I'm using the bash shell.

I tried
$variablename=" <string text>"

but it didnt give me the output i wanted (output was still justified to left). I tried \t right after the first quote but it printed the \t. I also tried removing the spaces and inserting an actual tab character but got the same result.

Another thing i wondered was if anyone knew how to format a here document so that if i have a line at the end of the here statement that prompts a user to enter a number, the cursor and their input stays on that line.

Any help is appreciated, thanks in advance.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to display only last character of a string?

hi all, if i do an: "echo $string |" what should be after the pipe to display ONLY the last char of the output? tia, DN2 (9 Replies)
Discussion started by: DukeNuke2
9 Replies

2. UNIX for Dummies Questions & Answers

read a variable character by character, substitute characters with something else

im having trouble doing this: i have a variable with 2 characters repeating e.g. aababbbaaaababaabbaabbba is there a way i can search the variable for a's and b's and then change a's to b's and b's to a's? im guessing its like getting the 1's compliment of the string im doing this in... (2 Replies)
Discussion started by: vipervenom25
2 Replies

3. UNIX for Advanced & Expert Users

newline character, space and tab after a string

no problem (6 Replies)
Discussion started by: angelina
6 Replies

4. Shell Programming and Scripting

why convert 8 space to 1 tab character on unix?

Hi everybody, I'm using Hp unix tru64. I have generate one file from shell script. bus that file content pre "8 space char" convert one tab character. why? result file hex format: hex 20 20 20 20 20 to 09 (6 Replies)
Discussion started by: Tlg13team
6 Replies

5. Shell Programming and Scripting

Display of string with TAB in it

Hi, I am having trouble using the result of the following awk command in a script, as displaying the contents of the placeholder automatically replaces the new created TAB by a space character again: From the prompt: cscyabl@comet:(develop)> echo "01 12" | awk '{gsub(" ","\t");print}' 01 ... (2 Replies)
Discussion started by: Indalecio
2 Replies

6. Shell Programming and Scripting

Delete parts of a string of character in one given column of a tab delimited file

I would like to remove characters from column 7 so that from an input file looking like this: >HWI-EAS422_12:4:1:69:89 GGTTTAAATATTGCACAAAAGGTATAGAGCGT U0 1 0 0 ref_chr8.fa 6527777 F DD I get something like that in an output file: ... (13 Replies)
Discussion started by: matlavmac
13 Replies

7. UNIX for Dummies Questions & Answers

Display last 8 character of filename

I would like to display the last 8 characters of the filenames for filenames of different lengths. I can delete the last 8 characters with sed but dont know how to only show the last 8 characters. The filenames are something like; afxH340800340000 afxH30800340021 afxR3080034002122 I... (3 Replies)
Discussion started by: Beanz
3 Replies

8. UNIX for Dummies Questions & Answers

Remove tab character from file

I am trying to remove the tab character from a file, which occurs on two places in every line. So far I have tried the following and most are from threads in this forum: sed -i '' -e 's/ / /' file.dat sed -i '' -e 's/*/ /' file.dat sed -i '' -e 's/\t*/ /g' file.dat sed -i '' -e 's/*//g'... (4 Replies)
Discussion started by: figaro
4 Replies

9. Shell Programming and Scripting

[Solved] SED - Bash - Inserting multi Tab character in the command

Hello. I am using : sed -i -e '/§name_script§/a#'"${MY_TAB11}"'# \ #'"${MY_TAB1}"'The Standard way'"${MY_TAB7}"'# \ #'"${MY_TAB1}"'==============='"${MY_TAB7}"'# \ ' "$CUR_FILE" Is there a better way to define "MY_TAB7","MY_TAB11" in other way than : MY_TAB1=$'\t' MY_TAB2=${MY_TAB1}$'\t'... (2 Replies)
Discussion started by: jcdole
2 Replies

10. Shell Programming and Scripting

Passing literal tab character from zsh to other program

I have a Zsh script which invokes another program. One of the paramters to be passed, should be a literal tab, i.e what in common programming languages is often written as "\t". If it were bash, I think I could use the special form $"\t" but this doesn't seem to work (the called program... (5 Replies)
Discussion started by: rovf
5 Replies
newform(1)							   User Commands							newform(1)

NAME
newform - change the format of a text file SYNOPSIS
newform [-s] [-itabspec] [-otabspec] [-bn] [-en] [-pn] [-an] [-f] [-cchar] [-ln] [filename...] DESCRIPTION
newform reads lines from the named filenames, or the standard input if no input file is named, and reproduces the lines on the standard output. Lines are reformatted in accordance with command line options in effect. Except for -s, command line options may appear in any order, may be repeated, and may be intermingled with the optional filenames. Command line options are processed in the order specified. This means that option sequences like ``-e15 -l60'' will yield results different from ``-l60 -e15''. Options are applied to all filenames on the command line. OPTIONS
The following options are supported: -s Shears off leading characters on each line up to the first tab and places up to 8 of the sheared characters at the end of the line. If more than 8 characters (not counting the first tab) are sheared, the eighth character is replaced by a * and any characters to the right of it are discarded. The first tab is always discarded. An error message and program exit will occur if this option is used on a file without a tab on each line. The characters sheared off are saved internally until all other options specified are applied to that line. The characters are then added at the end of the processed line. For example, to convert a file with leading digits, one or more tabs, and text on each line, to a file beginning with the text, all tabs after the first expanded to spaces, padded with spaces out to column 72 (or truncated to column 72), and the leading digits placed starting at column 73, the command would be: newform -s -i -l -a -e filename -itabspec Input tab specification: expands tabs to spaces, according to the tab specifications given. Tabspec recognizes all tab specification forms described in tabs(1). In addition, tabspec may be -, in which newform assumes that the tab specifica- tion is to be found in the first line read from the standard input (see fspec(4)). If no tabspec is given, tabspec defaults to -8. A tabspec of -0 expects no tabs; if any are found, they are treated as -1. -otabspec Output tab specification: replaces spaces by tabs, according to the tab specifications given. The tab specifications are the same as for -itabspec. If no tabspec is given, tabspec defaults to -8. A tabspec of -0 means that no spaces will be converted to tabs on output. -bn Truncate n characters from the beginning of the line when the line length is greater than the effective line length (see -ln). Default is to truncate the number of characters necessary to obtain the effective line length. The default value is used when -b with no n is used. This option can be used to delete the sequence numbers from a COBOL program as follows: newform -l1 -b7 filename -en Same as -bn except that characters are truncated from the end of the line. -pn Prefix n characters (see -cchar) to the beginning of a line when the line length is less than the effective line length. Default is to prefix the number of characters necessary to obtain the effective line length. -an Same as -pn except characters are appended to the end of a line. -f Write the tab specification format line on the standard output before any other lines are output. The tab specification format line which is printed will correspond to the format specified in the last -o option. If no -o option is specified, the line which is printed will contain the default specification of -8. -cchar Change the prefix/append character to char. Default character for char is a space. -ln Set the effective line length to n characters. If n is not entered, -l defaults to 72. The default line length without the -l option is 80 characters. Note: Tabs and backspaces are considered to be one character (use -i to expand tabs to spa- ces). The -l1 must be used to set the effective line length shorter than any existing line in the file so that the -b option is activated. OPERANDS
The following operand is supported: filename Input file EXIT STATUS
The following exit values are returned: 0 Successful operation. 1 Operation failed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |Availability |SUNWesu | +-----------------------------+-----------------------------+ SEE ALSO
csplit(1), tabs(1), fspec(4), attributes(5) DIAGNOSTICS
All diagnostics are fatal. usage: ... newform was called with a bad option. "not -s format" There was no tab on one line. "can't open file" Self-explanatory. "internal line too long" A line exceeds 512 characters after being expanded in the internal work buffer. "tabspec in error" A tab specification is incorrectly formatted, or specified tab stops are not ascending. "tabspec indirection illegal" A tabspec read from a file (or standard input) may not contain a tabspec referencing another file (or standard input). NOTES
newform normally only keeps track of physical characters; however, for the -i and -o options, newform will keep track of backspaces in order to line up tabs in the appropriate logical columns. newform will not prompt the user if a tabspec is to be read from the standard input (by use of -i- or -o-). If the -f option is used, and the last -o option specified was -o-, and was preceded by either a -o- or a -i-, the tab specification format line will be incorrect. SunOS 5.10 21 Jul 1997 newform(1)
All times are GMT -4. The time now is 04:23 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy