From cd524186199c02daae8476e19dca457ca98811e0 Mon Sep 17 00:00:00 2001
From: A404M <ahmadmahmoudiprogrammer@gmail.com>
Date: Fri, 30 Aug 2024 14:11:28 +0330
Subject: initial commit
---
pass_gen | 113 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 113 insertions(+)
create mode 100755 pass_gen
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 $len
+ echo
+}
+
+pass_gen "$@"
--
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