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Setting a SSS string

 
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# 1  
Old 03-11-2010
Setting a SSS string
Hi all,
I would like to build a string like

S_string=SSS...S

so repeating the S character n times where n is the value of a variable.
Is there a way to do it in one shot?
Cheers,
Sarah
# 2  
Old 03-11-2010
Yes,
which scripting/programming language are you using?
Last edited by radoulov; 03-11-2010 at 10:28 AM..
# 3  
Old 03-11-2010
I'm using bash
# 4  
Old 03-11-2010
Code:
S_string=$(printf '%013d'|tr 0 S)
S_string=$(awk 'BEGIN{$13=OFS="S";print}')

# 5  
Old 03-11-2010
Or:

bash >= 3.1:

Code:
$ c=S n=10
$ eval printf -vs '$c%.0s' {1..$n}
$ echo $s
SSSSSSSSSS

A shell function with Perl:

Code:
gen_n_of_x() {
  perl -le'
    print $ARGV[0] x $ARGV[1]
    '  "$2" "$1"
    }

Code:
$ gen_n_of_x 10 S
SSSSSSSSSS

Special characters should be quoted:

Code:
$ gen_n_of_x 7 \#
#######

Chris F.A. Johnson wrote a pure shell function for this: _repeat.
Last edited by radoulov; 03-12-2010 at 03:43 AM..
# 6  
Old 03-12-2010
Quote:
Originally Posted by vgersh99
Code:
S_string=$(printf '%013d'|tr 0 S)
S_string=$(awk 'BEGIN{$13=OFS="S";print}')

Thank you all,
If I have n=5, how do I have to change the commands?
I tried
Code:
n=5
S_string=$(printf '%0${n}d'|tr 0 S)

but it gives me an error message
# 7  
Old 03-12-2010
Quote:
Originally Posted by f_o_555
Thank you all,
If I have n=5, how do I have to change the commands?
I tried
Code:
n=5
S_string=$(printf '%0${n}d'|tr 0 S)

but it gives me an error message
Use double, instead of single quotes:

Code:
S_string="$(printf "%0${n}d"|tr 0 S)"

 
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