Created
November 28, 2022 14:47
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Some Bash Utilities
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| # Set verbose level for .log function | |
| # [0]="emerg" | |
| # [1]="alert" | |
| # [2]="crit" | |
| # [3]="err" | |
| # [4]="warning" | |
| # [5]="notice" | |
| # [6]="info" | |
| # [7]="debug" | |
| __VERBOSE=7 | |
| declare -A LOG_LEVELS | |
| # https://en.wikipedia.org/wiki/Syslog#Severity_level | |
| LOG_LEVELS=([0]="emerg" [1]="alert" [2]="crit" [3]="err" [4]="warning" [5]="notice" [6]="info" [7]="debug") | |
| #.log <LEVEL> <STRING_TO_ECHO> | |
| function .log () { | |
| local LEVEL=${1} | |
| shift | |
| if [ ${__VERBOSE} -ge "${LEVEL}" ]; then | |
| printf "[%s] %b\n" "${LOG_LEVELS[$LEVEL]}" "$@" | |
| fi | |
| } | |
| function check-for-sudo() { | |
| # Check if sudo/root permissions are available | |
| if [[ "$EUID" = 0 ]]; then | |
| .log 7 "(1) already root" | |
| else | |
| .log 6 "The script requires sudo/root access" | |
| sudo -k # make sure to ask for password on next sudo | |
| if sudo true; then | |
| .log 7 "(2) correct password" | |
| else | |
| .log 7 "(3) wrong password" | |
| .log 3 "Failed to gain sudo access. Exiting..." | |
| exit ${FAILURE} | |
| fi | |
| fi | |
| printf "\n\n" | |
| } |
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