forked from adolfopa/miscutils
Add RR: run command until failure
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2
Makefile
2
Makefile
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@ -1,7 +1,7 @@
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prefix=$$HOME/opt/pkg/miscutils
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prefix=$$HOME/opt/pkg/miscutils
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target_bin=${prefix}/bin
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target_bin=${prefix}/bin
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target_man=${prefix}/share/man/man1
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target_man=${prefix}/share/man/man1
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bin=bwrap hppt mkgmap newp rot scmfmt upcasetl unpage
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bin=bwrap hppt mkgmap newp rot rr scmfmt upcasetl unpage
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install:
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install:
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install -d ${target_bin} ${target_man}
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install -d ${target_bin} ${target_man}
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install -c ${bin} ${target_bin}
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install -c ${bin} ${target_bin}
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#!/bin/sh
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[ $# -eq 1 ] && echo "usage: $0 command ..." && exit 64
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tmp1=$(mktemp $0.XXXXXXXXXX)
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tmp2=$(mktemp $0.XXXXXXXXXX)
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trap "rm $tmp1 $tmp2; exit 0" 1 2 15
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while "$@" >$tmp2
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do
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if ! diff $tmp1 $tmp2
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then
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cp $tmp2 $tmp1
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else
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echo -n "."
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fi
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sleep 2
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done
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rm $tmp1 $tmp2
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@ -0,0 +1,30 @@
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.Dd Jun 10, 2022
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.Dt RR 1
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.Os
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.Sh NAME
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.Nm rr
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.Nd Repeteadly run a command until it exits with a non zero status
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.Sh SYNOPSIS
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.Nm
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.Ar cmd Op Ar arg ...
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.Sh DESCRIPTION
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Run command
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.Ar cmd arg ...
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repeteadly until it fails.
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.Pp
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In every run, compare its stdout with the one from the previous run.
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If there has been any change, print a diff;
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otherwise, display a dot to indicate progress.
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.Sh EXIT STATUS
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.Ex -std
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.Sh EXAMPLES
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.Bd -literal -offset indent
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$ rr pgrep -f foo
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0a1,2
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> 6871
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> 25428
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\&...^C
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$
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.Ed
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.Sh AUTHORS
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.An Adolfo Perez Alvarez Aq Mt adolfopa@sdf.org
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