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| -rwxr-xr-x | pass_gen | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/pass_gen b/pass_gen new file mode 100755 index 0000000..a082ce1 --- /dev/null +++ b/pass_gen @@ -0,0 +1,113 @@ +#!/bin/sh + +# By a404m + +show_usage(){ + echo "Usage: pass_gen [OPTION]..." + echo + echo "Generates a random password depending on OPTIONs" + echo + echo "Options:" + echo " -h|--help to print this message and exit" + echo " -l|--length [length] to determine length of password" + echo " -m|--alnum all letters and digits" + echo " -a|--aplha all letters" + echo " -d|--digit all digits" + echo " -b|--blank all horizontal whitespaces" + echo " -g|--graph all printable charaters, not including space" + echo " -l|--lower all lower case letters" + echo " -p|--print all printable characters, including space" + echo " -t|--punct all punctuation characters" + echo " -s|--space all horizontal or vertical whitesapce" + echo " -u|--upper all upper case letters" + echo " -x|--xdigit all hexadecimal digits" + echo " -c|--custom [CHARS] all characters used in [CHARS]" + echo " -v|--version show version and exit" +} + +show_version(){ + echo "Version: v0.0.1" +} + +pass_gen(){ + local len=8 + local filter='' + numRegx='^[0-9]+$' + while [ ! -z "$1" ]; do + case "$1" in + -h|--help) + show_usage + exit 0 + ;; + -l|--length) + shift + if ! [[ $1 =~ $numRegx ]]; then + echo "Incorrrect usage:" + echo "You should provide length as a number" + exit 1 + else + len="$1" + fi + ;; + -m|--alnum) + filter="$filter[:alnum:]" + ;; + -a|--alpha) + filter="$filter[:alpha:]" + ;; + -d|--digit) + filter="$filter[:digit:]" + ;; + -b|--blank) + filter="$filter[:blank:]" + ;; + -g|--graph) + filter="$filter[:graph:]" + ;; + -l|--lower) + filter="$filter[:lower:]" + ;; + -p|--print) + filter="$filter[:print:]" + ;; + -t|--punct) + filter="$filter[:punct:]" + ;; + -s|--space) + filter="$filter[:space:]" + ;; + -u|--upper) + filter="$filter[:upper:]" + ;; + -x|--xdigit) + filter="$filter[:xdigit:]" + ;; + -c|--custom) + shift + if [ -z $1 ]; then + echo "Incorrrect usage:" + echo "You should provide custom characters" + exit 1 + else + filter="$filter$1" + fi + ;; + -v|--version) + show_version + exit 0 + ;; + *) + echo "Incorrrect usage" + show_usage + exit 1 + esac + shift + done + if [ ! -n "$filter" ]; then + filter='[:graph:]' + fi + tr -cd "$filter" < /dev/urandom | head -c $len + echo +} + +pass_gen "$@" |