expression - bash variable evaluating with quote for special character -

-

below simple bash script test few password in rar file. when password contains special character (!), see option (-p) parsed quote ('). 

#!/bin/bash -x  pwd=`echo sei{0..9}{0..9}b{0..9}axq!zx` #pwd=sei03b4axq!zx file="test.rar" eachpwd in $pwd     eval unrar x "$file" -p"$eachpwd" id 2>/dev/null 1>/dev/null     c=$?     if [ $c = 0 ]         echo "success"         exit     fi     echo $eachpwd $c done

output 

+ eachpwd in '$pwd' + eval unrar x test.rar '-psei49b4axq!zx' id + c=10 + '[' 10 = 0 ']' + echo 'sei49b4axq!zx' 10

question
how code such that, during eval not unrar x test.rar '-psei49b4axq!zx' id instead unrar x test.rar -psei49b4axq!zx id evaluated expression

update 1
tried below code, still quote(!) on -p option refuses budge. 

passwords=( sei{0..9}{0..9}b{0..9}axq!zx ) file=test.rar  password in "${passwords[@]}";     if unrar x "$file" -p"$password" id 2>/dev/null 1>/dev/null;         echo "success"         exit     else         echo $password failed.     fi done

result 

   + password in '"${passwords[@]}"'     + unrar x test.rar '-psei21b0axq!zx' id     + echo 'sei21b0axq!zx' failed.     sei21b0axq!zx failed.     + password in '"${passwords[@]}"'     + unrar x test.rar '-psei21b1axq!zx' id

please note using bash shell execution.

there couple of possible explanations happening, none of worth exploring because don't need use eval. also, it's better use array hold passwords, or put brace expression directly in for loop, rather creating single string.

# use single quotes on small chance history expansion # enabled, protect !. can drop them. passwords=( sei{0..9}{0..9}b{0..9}'axq!zx' )  password in "${passwords[@]}";     if unrar x "$file" -p "$eachpwd" id 2>/dev/null 1>/dev/null;         echo "success"         exit     fi done

Comments

Post a Comment

Popular posts from this blog

database - VFP Grid + SQL server 2008 - grid not showing correctly -

-
i having problem, have grid called "gridbasica" , this: thisform.gridbase.recordsource = "sgviemp" sgviemp cursor made executing select sqlserver command sqlexec. when want modify registry, go form , the update there. so, when come form grid, grid isnt grid anymore, big white rectangle. reading around said: delete recordsource , asingt again. thisform.gridbase.recordsource = "" *--i sqlexe here thisform.gridbase.recordsource = "sgviemp" i , works, but, when click button modify again cursos updated modify form doesnt load fields did first time. could me out that? thanks in advance. --------------- edit ------------------ i have been doing recommended: lnselect = select(0) n = sqlexec(thisform.conexion,"select emp_ccodigo codigo, emp_cnombre 'nombre o razon social', emp_cnumrif 'r.i.f' sgviempr","sgviemp1") set echo on suspend select sgviemp zap in sgviemp *-- browse *--zaps correct
Read more

jquery - Set jPicker field to empty value -

-
im using jpicker color selector in form. have clear value set window/icon 'no color selected' state. i've tried following: $(':input[name="color"]').val(''); //access value directly. (does not affect jpicker) 2: $.jpicker.list[0].color.active.val('hex', '', this); //set color black , input value 000000, instead of empty string 3: $.jpicker.list[0].color.active.val(null, '', this); //does nothing none of 3 methods seems behave properly. in advance. this works me :) $.jpicker.list[0].color.active.val('v', null); here example: http://jsfiddle.net/3up7n/
Read more

c# - Convert XDocument to byte array (and byte array to XDocument) -

-
i've taken on system stores large xml documents in sql server in binary format. currently data saved converting string, converting string byte array. large xml documents i'm getting out memory exceptions when attempting convert string, want bypass process , go straight xdocument byte array. the entity framework class holding xml has been extended binary data accessible string this: partial class xmldata { public string xmlstring { { return encoding.utf8.getstring(xmlbinary); } set { xmlbinary = encoding.utf8.getbytes(value); } } } i want further extend class this: partial class xmldata { public string xmlstring{ { return encoding.utf8.getstring(xmlbinary); } set { xmlbinary = encoding.utf8.getbytes(value); } } public xdocument xdoc { { // convert xmlbinary xdocument } set { // convert xdocument xmlbinary } } } i think i've figured out conversion, when use partial cla
Read more