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1 .\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.47.6.
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2 .TH ENVSUBST "1" "February 2024" "GNU gettext-runtime 0.22.5" "User Commands"
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3 .SH NAME
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4 envsubst \- substitutes environment variables in shell format strings
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5 .SH SYNOPSIS
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6 .B envsubst
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7 [\fI\,OPTION\/\fR] [\fI\,SHELL-FORMAT\/\fR]
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8 .SH DESCRIPTION
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9 .\" Add any additional description here
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10 .PP
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11 Substitutes the values of environment variables.
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12 .SS "Operation mode:"
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13 .TP
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14 \fB\-v\fR, \fB\-\-variables\fR
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15 output the variables occurring in SHELL\-FORMAT
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16 .SS "Informative output:"
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17 .TP
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18 \fB\-h\fR, \fB\-\-help\fR
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19 display this help and exit
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20 .TP
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21 \fB\-V\fR, \fB\-\-version\fR
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22 output version information and exit
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23 .PP
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24 In normal operation mode, standard input is copied to standard output,
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25 with references to environment variables of the form $VARIABLE or ${VARIABLE}
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26 being replaced with the corresponding values. If a SHELL\-FORMAT is given,
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27 only those environment variables that are referenced in SHELL\-FORMAT are
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28 substituted; otherwise all environment variables references occurring in
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29 standard input are substituted.
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30 .PP
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31 When \fB\-\-variables\fR is used, standard input is ignored, and the output consists
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32 of the environment variables that are referenced in SHELL\-FORMAT, one per line.
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33 .SH AUTHOR
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34 Written by Bruno Haible.
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35 .SH "REPORTING BUGS"
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36 Report bugs in the bug tracker at <https://savannah.gnu.org/projects/gettext>
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37 or by email to <bug\-gettext@gnu.org>.
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38 .SH COPYRIGHT
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39 Copyright \(co 2003\-2023 Free Software Foundation, Inc.
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40 License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>
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41 .br
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42 This is free software: you are free to change and redistribute it.
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43 There is NO WARRANTY, to the extent permitted by law.
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44 .SH "SEE ALSO"
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45 The full documentation for
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46 .B envsubst
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47 is maintained as a Texinfo manual. If the
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48 .B info
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49 and
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50 .B envsubst
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51 programs are properly installed at your site, the command
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52 .IP
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53 .B info envsubst
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54 .PP
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55 should give you access to the complete manual.
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