How to create multiple files(100 files) and they can contain 30 random characters in each of them











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I need to create 100 files using script Linux which contain 30 random characters password and that password contain only strings, small letters and big letters. 



// #!/bin/bash

for n in {1..100}; do



dd if=/dev/urandom of=/mnt/mymnt/passwords/only_numbers_and_lettersNUM.txt$( printf %03d "$n" ).bin bs=1 count=$(( RANDOM + 1024 ))



head /dev/urandom | tr -dc A-Za-z0-9 | head -c 30 ; echo ''



done //


Thanks in advance.






linux







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  • 2




    There doesn't appear to be a question here. Please could you describe why what you've tried doesn't work?
    – Roger Lipscombe
    2 days ago















up vote
-1
down vote

favorite












I need to create 100 files using script Linux which contain 30 random characters password and that password contain only strings, small letters and big letters. 



// #!/bin/bash

for n in {1..100}; do



dd if=/dev/urandom of=/mnt/mymnt/passwords/only_numbers_and_lettersNUM.txt$( printf %03d "$n" ).bin bs=1 count=$(( RANDOM + 1024 ))



head /dev/urandom | tr -dc A-Za-z0-9 | head -c 30 ; echo ''



done //


Thanks in advance.






linux







share|improve this question









New contributor




Onyic is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
















  • 2




    There doesn't appear to be a question here. Please could you describe why what you've tried doesn't work?
    – Roger Lipscombe
    2 days ago













up vote
-1
down vote

favorite









up vote
-1
down vote

favorite











I need to create 100 files using script Linux which contain 30 random characters password and that password contain only strings, small letters and big letters. 



// #!/bin/bash

for n in {1..100}; do



dd if=/dev/urandom of=/mnt/mymnt/passwords/only_numbers_and_lettersNUM.txt$( printf %03d "$n" ).bin bs=1 count=$(( RANDOM + 1024 ))



head /dev/urandom | tr -dc A-Za-z0-9 | head -c 30 ; echo ''



done //


Thanks in advance.






linux







share|improve this question









New contributor




Onyic is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











I need to create 100 files using script Linux which contain 30 random characters password and that password contain only strings, small letters and big letters. 



// #!/bin/bash

for n in {1..100}; do



dd if=/dev/urandom of=/mnt/mymnt/passwords/only_numbers_and_lettersNUM.txt$( printf %03d "$n" ).bin bs=1 count=$(( RANDOM + 1024 ))



head /dev/urandom | tr -dc A-Za-z0-9 | head -c 30 ; echo ''



done //


Thanks in advance.






linux




linux






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edited 2 days ago





















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asked 2 days ago









Onyic

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  • 2




    There doesn't appear to be a question here. Please could you describe why what you've tried doesn't work?
    – Roger Lipscombe
    2 days ago














  • 2




    There doesn't appear to be a question here. Please could you describe why what you've tried doesn't work?
    – Roger Lipscombe
    2 days ago








2




2




There doesn't appear to be a question here. Please could you describe why what you've tried doesn't work?
– Roger Lipscombe
2 days ago




There doesn't appear to be a question here. Please could you describe why what you've tried doesn't work?
– Roger Lipscombe
2 days ago












1 Answer
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1
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#!/bin/bash

for n in {1..100}; do

    { < /dev/urandom tr -dc A-Za-z | head -c${1:-30};echo; } > /mnt/mymnt/passwords/$n

done





share|improve this answer










New contributor




gopy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.


















  • Thanks gopy, but I still need the files to be created in the directory " /mnt/mymnt/passwords " and with the name " only_numbers_and_lettersNUM.txt "
    – Onyic
    2 days ago












  • @NourJandali: Then you improve the above script to suit your needs
    – Basile Starynkevitch
    2 days ago






  • 1




    I updated the answer
    – gopy
    2 days ago










  • what would you like to name the files?
    – gopy
    2 days ago










  • @BasileStarynkevitch I am new to Linux.
    – Onyic
    2 days ago











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1 Answer
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1 Answer
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up vote
1
down vote













#!/bin/bash

for n in {1..100}; do

    { < /dev/urandom tr -dc A-Za-z | head -c${1:-30};echo; } > /mnt/mymnt/passwords/$n

done





share|improve this answer










New contributor




gopy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.


















  • Thanks gopy, but I still need the files to be created in the directory " /mnt/mymnt/passwords " and with the name " only_numbers_and_lettersNUM.txt "
    – Onyic
    2 days ago












  • @NourJandali: Then you improve the above script to suit your needs
    – Basile Starynkevitch
    2 days ago






  • 1




    I updated the answer
    – gopy
    2 days ago










  • what would you like to name the files?
    – gopy
    2 days ago










  • @BasileStarynkevitch I am new to Linux.
    – Onyic
    2 days ago















up vote
1
down vote













#!/bin/bash

for n in {1..100}; do

    { < /dev/urandom tr -dc A-Za-z | head -c${1:-30};echo; } > /mnt/mymnt/passwords/$n

done





share|improve this answer










New contributor




gopy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.


















  • Thanks gopy, but I still need the files to be created in the directory " /mnt/mymnt/passwords " and with the name " only_numbers_and_lettersNUM.txt "
    – Onyic
    2 days ago












  • @NourJandali: Then you improve the above script to suit your needs
    – Basile Starynkevitch
    2 days ago






  • 1




    I updated the answer
    – gopy
    2 days ago










  • what would you like to name the files?
    – gopy
    2 days ago










  • @BasileStarynkevitch I am new to Linux.
    – Onyic
    2 days ago













up vote
1
down vote










up vote
1
down vote









#!/bin/bash

for n in {1..100}; do

    { < /dev/urandom tr -dc A-Za-z | head -c${1:-30};echo; } > /mnt/mymnt/passwords/$n

done





share|improve this answer










New contributor




gopy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct. 









#!/bin/bash

for n in {1..100}; do

    { < /dev/urandom tr -dc A-Za-z | head -c${1:-30};echo; } > /mnt/mymnt/passwords/$n

done






share|improve this answer










New contributor




gopy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this answer



share|improve this answer








edited 2 days ago





















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answered 2 days ago









gopy

946




946




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gopy is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  • Thanks gopy, but I still need the files to be created in the directory " /mnt/mymnt/passwords " and with the name " only_numbers_and_lettersNUM.txt "
    – Onyic
    2 days ago












  • @NourJandali: Then you improve the above script to suit your needs
    – Basile Starynkevitch
    2 days ago






  • 1




    I updated the answer
    – gopy
    2 days ago










  • what would you like to name the files?
    – gopy
    2 days ago










  • @BasileStarynkevitch I am new to Linux.
    – Onyic
    2 days ago


















  • Thanks gopy, but I still need the files to be created in the directory " /mnt/mymnt/passwords " and with the name " only_numbers_and_lettersNUM.txt "
    – Onyic
    2 days ago












  • @NourJandali: Then you improve the above script to suit your needs
    – Basile Starynkevitch
    2 days ago






  • 1




    I updated the answer
    – gopy
    2 days ago










  • what would you like to name the files?
    – gopy
    2 days ago










  • @BasileStarynkevitch I am new to Linux.
    – Onyic
    2 days ago
















Thanks gopy, but I still need the files to be created in the directory " /mnt/mymnt/passwords " and with the name " only_numbers_and_lettersNUM.txt "
– Onyic
2 days ago






Thanks gopy, but I still need the files to be created in the directory " /mnt/mymnt/passwords " and with the name " only_numbers_and_lettersNUM.txt "
– Onyic
2 days ago














@NourJandali: Then you improve the above script to suit your needs
– Basile Starynkevitch
2 days ago




@NourJandali: Then you improve the above script to suit your needs
– Basile Starynkevitch
2 days ago




1




1




I updated the answer
– gopy
2 days ago




I updated the answer
– gopy
2 days ago












what would you like to name the files?
– gopy
2 days ago




what would you like to name the files?
– gopy
2 days ago












@BasileStarynkevitch I am new to Linux.
– Onyic
2 days ago




@BasileStarynkevitch I am new to Linux.
– Onyic
2 days ago










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