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devel / comp.graphics.apps.gnuplot / Re: sprintf: max number of characters printed?

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* sprintf: max number of characters printed?Konstantinos Anagnostopoulos
`- Re: sprintf: max number of characters printed?Konstantinos Anagnostopoulos

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sprintf: max number of characters printed?

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Subject: sprintf: max number of characters printed?
From: k.n.anag...@gmail.com (Konstantinos Anagnostopoulos)
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 by: Konstantinos Anagnos - Tue, 2 Nov 2021 17:00 UTC

Hi I am trying to write a string to be used as a command in a script.

When the filenames are too long the string get truncated. See e.g.:

files="aaaD_01.ava0 aaaD_02.ava0 aaaD06N0012n0004s+01.0000k001.0000B001.0000K000.9368i-02.2617e+00.0000m+01.0000g02.ava0 1234567890123456789012345678901234567890123456789001234567890012345678900123456789001234567890"

do for [f in files]{ print sprintf("head %s|awk '/srkappa/{printf \"(\%7.4f,\%7.4f)\",$4,$5}'",f)}

Produces the output:

head aaaD_01.ava0|awk '/srkappa/{printf "(%7.4f,%7.4f)",$4,$5}'
head aaaD_02.ava0|awk '/srkappa/{printf "(%7.4f,%7.4f)",$4,$5}'
head aaaD06N0012n0004s+01.0000k001.0000B001.0000K000.9368i-02.2617e+00.0000m+01.0000g02.ava0|awk '/srkappa/{printf "(%7.4f,%7.4f)",$
head 1234567890123456789012345678901234567890123456789001234567890012345678900123456789001234567890|awk '/srkappa/{printf "(%7.4f,%7

i.e. the last two commands are incomplete. Is there a way to control this output? Thank you.

I am suing gnuplot 5.2 patchlevel 8 last modified 2019-12-01 on ubuntu 20.04.

Re: sprintf: max number of characters printed?

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Subject: Re: sprintf: max number of characters printed?
From: k.n.anag...@gmail.com (Konstantinos Anagnostopoulos)
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 by: Konstantinos Anagnos - Tue, 2 Nov 2021 17:40 UTC

OK, replacing %s -> %120s (or %-120s) does not chop the command and prints it correctly, but it is still a mystery why %s prints the output as mentioned before since it does not chop the string corresponding to %s but the last characters of the resulting string.

files="aaaD_01.ava0 aaaD_02.ava0 aaaD06N0012n0004s+01.0000k001.0000B001.0000K000.9368i-02.2617e+00.0000m+01.0000g02.ava0 1234567890123456789012345678901234567890123456789001234567890012345678900123456789001234567890END"

do for [f in files]{ print sprintf("head %120s|awk '/srkappa/{printf \"(\%7..4f,\%7.4f)\",$4,$5}'",f)}
head aaaD_01.ava0|awk '/srkappa/{printf "(%7.4f,%7.4f)",$4,$5}'
head aaaD_02.ava0|awk '/srkappa/{printf "(%7.4f,%7.4f)",$4,$5}'
head aaaD06N0012n0004s+01.0000k001.0000B001.0000K000.9368i-02.2617e+00.0000m+01.0000g02.ava0|awk '/srkappa/{printf "(%7.4f,%7.4f)",$4,$5}'
head 1234567890123456789012345678901234567890123456789001234567890012345678900123456789001234567890END|awk '/srkappa/{printf "(%7.4f,%7.4f)",$4,$5}'

On Tuesday, November 2, 2021 at 7:00:44 PM UTC+2, Konstantinos Anagnostopoulos wrote:
> Hi I am trying to write a string to be used as a command in a script.
>
> When the filenames are too long the string get truncated. See e.g.:
>
> files="aaaD_01.ava0 aaaD_02.ava0 aaaD06N0012n0004s+01.0000k001.0000B001..0000K000.9368i-02.2617e+00.0000m+01.0000g02.ava0 1234567890123456789012345678901234567890123456789001234567890012345678900123456789001234567890"
>
> do for [f in files]{ print sprintf("head %s|awk '/srkappa/{printf \"(\%7.4f,\%7.4f)\",$4,$5}'",f)}
>
> Produces the output:
>
> head aaaD_01.ava0|awk '/srkappa/{printf "(%7.4f,%7.4f)",$4,$5}'
> head aaaD_02.ava0|awk '/srkappa/{printf "(%7.4f,%7.4f)",$4,$5}'
> head aaaD06N0012n0004s+01.0000k001.0000B001.0000K000.9368i-02.2617e+00.0000m+01.0000g02.ava0|awk '/srkappa/{printf "(%7.4f,%7.4f)",$
> head 1234567890123456789012345678901234567890123456789001234567890012345678900123456789001234567890|awk '/srkappa/{printf "(%7.4f,%7
>
>
> i.e. the last two commands are incomplete. Is there a way to control this output? Thank you.
>
> I am suing gnuplot 5.2 patchlevel 8 last modified 2019-12-01 on ubuntu 20..04.

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