Gzexe Help shell scripting encryption 01

Gzexe Help Shell Scripting Encryption on

First, Introduction

many times our script will involve some private information, such as: User name, password, or other important information, we use some encryption to block this information, to ensure that the security of the system has been scripted, usually we only need to bring through the system's own Gzexe This tool is enough.

Second, The experimental test begins :

 2.1 Writing a script for testing [[email protected] ~]# VI woo.sh#! /bin/kshecho ' Prudentwoo ' ' Date +%y-%m-%d '%T ' uptime2.2 gives executable permission and executes [[email protected] ~]# chmod +x woo.sh[[ Email protected] ~]#./woo.shprudentwoo 2014-12-30 22:13:27 22:13:27 up ten days, 23:03, 3 users, load average:0.00 , 0.01, 0.052.3 perform gzexe encryption operation [[[email protected] ~]# Gzexe woo.shwoo.sh:11.5%[[email protected] ~]# ll WOO.S*-RW Xr-xr-x 1 root root 888 Dec 22:15 woo.sh-rwxr-xr-x 1 root root Dec 22:11 woo.sh~[[email protected] ~] #2.4 Plus Secret file contents [[email protected] ~]# strings woo.sh#!/bin/shskip=44tab= ' nl= ' ifs= "$tab $nl" umask= ' umask ' umask  77gztmpdir=trap ' res=$? Test-n "$gztmpdir" && rm-fr "$gztmpdir" (Exit $res); Exit $res ' 0 1 2 3 5 15if type mktemp >/dev/null 2>&1; Then gztmpdir= ' mktemp-dt ' else gztmpdir=/tmp/gztmp$$; mkdir $gztmpdirfi | | {(exit 127); Exit 127;} gztmp= $gztmpdir/$0case $ in-* | */* ') mkdir-p "$gztmp" && rm-r "$gztmp";; */*)gztmp= $gztmpdir/' basename ' $ "';; Esac | | {(exit 127); Exit 127;} Case ' echo X | Tail-n +1 2>/dev/null ' InX) tail_n=-n;; *) tail_n=;; ESACIF tail $tail _n + $skip < "$ A" | GZIP-CD > "$gztmp"; Then umask $umask chmod "$gztmp" (Sleep 5; rm-fr "$gztmpdir") 2>/dev/null & "$gztmp" ${1+ "[Email prot Ected] "}; Res=$?else echo >&2 "Cannot decompress" (Exit 127); Res=127fi; Exit $reswoo. SH (*miwwwpohi,iu2.5 executes the encrypted file again, the output is the same [[email protected] ~]#./woo.shprudentwoo 2014-12-30 22:17:22 22:17:22 up ten days, 23:06, 3 users, load average:0.00, 0.01, 0.05[[email protected] ~] #2.6 Perform the decryption operation: [[EMAIL&NBSP;PR Otected] ~]# gzexe-d woo.sh[[email protected] ~]# cat woo.sh#! /bin/kshecho ' Prudentwoo ' ' Date +%y-%m-%d '%T ' uptime[[email protected] ~] #2.7 Confirm again, encryption and decryption are feasible:[[email  Protected] ~]#./woo.shprudentwoo 2014-12-30 22:19:50 22:19:50 up ten days, 23:09, 3 users, load average:0.00, 0.01, 0.0 5[[email protected] ~]#

Gzexe Help shell scripting encryption 01