bash scripts: get rid of expr and let
As suggested by: https://github.com/koalaman/shellcheck/wiki/SC2219 Signed-off-by: Kairui Song <kasong@redhat.com> Acked-by: Philipp Rudo <prudo@redhat.com>
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@ -196,7 +196,7 @@ cal_netmask_by_prefix() {
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_res="$_first_part"
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_tmp=$((_octets_total*_bits_per_octet-_prefix))
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_zero_bits=$(expr $_tmp % $_bits_per_group)
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_zero_bits=$((_tmp % _bits_per_group))
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if [[ "$_zero_bits" -ne 0 ]]; then
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_second_part=$((_max_group_value >> _zero_bits << _zero_bits))
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if ((_ipv6)); then
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4
kdumpctl
4
kdumpctl
@ -772,7 +772,7 @@ check_and_wait_network_ready()
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fi
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cur=$(date +%s)
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let "diff = $cur - $start_time"
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diff=$((cur - start_time))
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# 60s time out
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if [ $diff -gt 180 ]; then
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break;
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@ -835,7 +835,7 @@ show_reserved_mem()
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local mem_mb
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mem=$(</sys/kernel/kexec_crash_size)
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mem_mb=$(expr "$mem" / 1024 / 1024)
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mem_mb=$((mem / 1024 / 1024))
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dinfo "Reserved "$mem_mb"MB memory for crash kernel"
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}
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