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Simplify grep-based conditionals

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The "-q" argument avoids the requirement for output redirections.
This commit is contained in:
Lars Kruse 2020-02-08 04:45:22 +01:00
parent 94a695860d
commit 0600bbf113
1 changed files with 2 additions and 2 deletions
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4
plugins/cpu
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@ -1,6 +1,6 @@
config_cpu() { config_cpu() {
extinfo="" extinfo=""
if grep '^cpu \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\}' /proc/stat >/dev/null 2>&1; then if grep -q '^cpu \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\}' /proc/stat; then
extinfo="iowait irq softirq" extinfo="iowait irq softirq"
fi fi
# shellcheck disable=SC2126 # shellcheck disable=SC2126
@ -68,7 +68,7 @@ config_cpu() {
} }
fetch_cpu() { fetch_cpu() {
extinfo="" extinfo=""
if grep '^cpu \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\}' /proc/stat >/dev/null 2>&1; then if grep -q '^cpu \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\} \{1,\}[0-9]\{1,\}' /proc/stat; then
extinfo="iowait irq softirq" extinfo="iowait irq softirq"
fi fi
CINFO=$(grep '^cpu ' /proc/stat | cut -c6-) CINFO=$(grep '^cpu ' /proc/stat | cut -c6-)