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Add validation for potentially empty variables

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Add fallback values for variables that might be empty when
system information is unavailable. Use parameter expansion
with default values (${var:-Default}) to ensure meaningful
output even when commands fail or return empty results.

Affected functions: get_cpu_info, get_ram_info, get_network_info

#11

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Jared Vititoe
2026-02-05 10:49:23 -05:00
parent 67d4b76324
commit 148a7ac644
1 changed files with 25 additions and 20 deletions
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45
proxDoc.sh
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@@ -132,25 +132,27 @@ get_disk_health() {
}
get_cpu_info() {
cpu_info=$(grep -m 1 -w 'model name' /proc/cpuinfo | awk -F: '{print $2}' | xargs) || {
echo -e "${RED}Failed to retrieve CPU model information.${NC}"
}
cpu_cores=$(lscpu | grep '^CPU(s):' | awk '{print $2}')
cpu_mhz=$(lscpu | grep 'MHz' | awk '{print $4}')
echo -e "${GREEN}CPU Model:${NC} $cpu_info"
echo -e "${GREEN}CPU Cores:${NC} $cpu_cores"
echo -e "${GREEN}CPU MHz:${NC} $cpu_mhz"
local cpu_info cpu_cores cpu_mhz
cpu_info=$(grep -m 1 -w 'model name' /proc/cpuinfo 2>/dev/null | awk -F: '{print $2}' | xargs)
cpu_cores=$(lscpu 2>/dev/null | grep '^CPU(s):' | awk '{print $2}')
cpu_mhz=$(lscpu 2>/dev/null | grep 'MHz' | awk '{print $4}')
echo -e "${GREEN}CPU Model:${NC} ${cpu_info:-Unknown}"
echo -e "${GREEN}CPU Cores:${NC} ${cpu_cores:-Unknown}"
echo -e "${GREEN}CPU MHz:${NC} ${cpu_mhz:-Unknown}"
}
get_ram_info() {
ram_total=$(free -h | grep 'Mem:' | awk '{print $2}')
ram_used=$(free -h | grep 'Mem:' | awk '{print $3}')
ram_free=$(free -h | grep 'Mem:' | awk '{print $4}')
echo -e "${GREEN}Total RAM:${NC} $ram_total"
echo -e "${GREEN}Used RAM:${NC} $ram_used"
echo -e "${GREEN}Free RAM:${NC} $ram_free"
local ram_total ram_used ram_free
ram_total=$(free -h 2>/dev/null | grep 'Mem:' | awk '{print $2}')
ram_used=$(free -h 2>/dev/null | grep 'Mem:' | awk '{print $3}')
ram_free=$(free -h 2>/dev/null | grep 'Mem:' | awk '{print $4}')
echo -e "${GREEN}Total RAM:${NC} ${ram_total:-Unknown}"
echo -e "${GREEN}Used RAM:${NC} ${ram_used:-Unknown}"
echo -e "${GREEN}Free RAM:${NC} ${ram_free:-Unknown}"
}
get_storage_info() {
@@ -164,10 +166,13 @@ get_storage_info() {
}
get_network_info() {
default_gateway=$(ip route | grep default | awk '{print $3}')
ip_addresses=$(hostname -I | xargs)
echo -e "${GREEN}Default Gateway:${NC} $default_gateway"
echo -e "${GREEN}IP Addresses:${NC} $ip_addresses"
local default_gateway ip_addresses
default_gateway=$(ip route 2>/dev/null | grep default | awk '{print $3}')
ip_addresses=$(hostname -I 2>/dev/null | xargs)
echo -e "${GREEN}Default Gateway:${NC} ${default_gateway:-Not configured}"
echo -e "${GREEN}IP Addresses:${NC} ${ip_addresses:-None detected}"
}
get_detailed_network() {