Adding size of files using shell script

up vote
2
down vote

favorite

I want to add and echo the sum of several files using shell script. How do I start?
I have a list of them like that:

$ stat /etc/*.conf | grep Size | cut -f4 -d' '

123

456

789

101112

edited yesterday

muru

35.1k581154

asked yesterday

C. Cristi

1577

5

you don't we simply use du?
– msp9011
yesterday

1

@msp9011, du will calculate also subdirectories
– Romeo Ninov
yesterday

1

@RomeoNinov here we are checking only files...du -b /etc/*.conf
– msp9011
yesterday

@msp9011 Not if there is a directory matching the pattern. It's unlikely but not impossible.
– BlackJack
yesterday

@msp9011 due to block sizes, etc, disk usage is not the same as total file size.
– OrangeDog
19 hours ago

add a comment |

up vote
2
down vote

favorite

I want to add and echo the sum of several files using shell script. How do I start?
I have a list of them like that:

$ stat /etc/*.conf | grep Size | cut -f4 -d' '

123

456

789

101112

edited yesterday

muru

35.1k581154

asked yesterday

C. Cristi

1577

5

you don't we simply use du?
– msp9011
yesterday

1

@msp9011, du will calculate also subdirectories
– Romeo Ninov
yesterday

1

@RomeoNinov here we are checking only files...du -b /etc/*.conf
– msp9011
yesterday

@msp9011 Not if there is a directory matching the pattern. It's unlikely but not impossible.
– BlackJack
yesterday

@msp9011 due to block sizes, etc, disk usage is not the same as total file size.
– OrangeDog
19 hours ago

add a comment |

up vote
2
down vote

favorite

I want to add and echo the sum of several files using shell script. How do I start?
I have a list of them like that:

$ stat /etc/*.conf | grep Size | cut -f4 -d' '

123

456

789

101112

edited yesterday

muru

35.1k581154

asked yesterday

C. Cristi

1577

I want to add and echo the sum of several files using shell script. How do I start?
I have a list of them like that:

$ stat /etc/*.conf | grep Size | cut -f4 -d' '

123

456

789

101112

shell-script shell

edited yesterday

muru

35.1k581154

asked yesterday

C. Cristi

1577

edited yesterday

muru

35.1k581154

asked yesterday

C. Cristi

1577

edited yesterday

muru

35.1k581154

edited yesterday

muru

35.1k581154

edited yesterday

muru

35.1k581154

asked yesterday

C. Cristi

1577

asked yesterday

C. Cristi

1577

asked yesterday

C. Cristi

1577

5

you don't we simply use du?
– msp9011
yesterday

1

@msp9011, du will calculate also subdirectories
– Romeo Ninov
yesterday

1

@RomeoNinov here we are checking only files...du -b /etc/*.conf
– msp9011
yesterday

@msp9011 Not if there is a directory matching the pattern. It's unlikely but not impossible.
– BlackJack
yesterday

@msp9011 due to block sizes, etc, disk usage is not the same as total file size.
– OrangeDog
19 hours ago

add a comment |

5

you don't we simply use du?
– msp9011
yesterday

1

@msp9011, du will calculate also subdirectories
– Romeo Ninov
yesterday

1

@RomeoNinov here we are checking only files...du -b /etc/*.conf
– msp9011
yesterday

@msp9011 Not if there is a directory matching the pattern. It's unlikely but not impossible.
– BlackJack
yesterday

@msp9011 due to block sizes, etc, disk usage is not the same as total file size.
– OrangeDog
19 hours ago

you don't we simply use du?
– msp9011
yesterday

@msp9011, du will calculate also subdirectories
– Romeo Ninov
yesterday

@RomeoNinov here we are checking only files...du -b /etc/*.conf
– msp9011
yesterday

@msp9011 Not if there is a directory matching the pattern. It's unlikely but not impossible.
– BlackJack
yesterday

@msp9011 due to block sizes, etc, disk usage is not the same as total file size.
– OrangeDog
19 hours ago

add a comment |

5 Answers
5

active

oldest

votes

up vote
2
down vote

accepted

You can do this …

total=0

for s in $(stat /etc/*.conf | grep Size | cut -f4 -d' '); do 

    total=$(expr $total + $s)

done

answered yesterday

Red Cricket

1,20431731

Thanks! and if I want to output it in a file I do: echo total > my_file.txt, right? And what if I want to output the errors too what do I do then?
– C. Cristi
yesterday

4

Don't use grep or cut on stat output. stat has format flags (%s) for this
– ohno
yesterday

5

Also, 'Size' is likely to assume an English or "C " locale.
– xenoid
yesterday

add a comment |

up vote
12
down vote

stat -c "%s" /etc/*.conf|paste -sd+|bc -l

answered yesterday

Ipor Sircer

10.2k11024

Although effectively the same as @xenoid's solution, I prefer this because 1) less rigamarole with format strings and remembering to append the final "0"; and 2) while it costs a process, it hews closer to the "one thing well" philosophy. It's also a useful use of the (perhaps underappreciated) paste utility that can be applied to a larger class of problems: separating a bunch of stuff with a delimiter. Another example is "unwrapping" (removing the line breaks from) a text file: paste -sd$' ' inputfile.
– TheDudeAbides
yesterday

@TheDudeAbides, all those things are true about awk. And it use one process less. And IMO is much more readable
– Romeo Ninov
20 hours ago

add a comment |

up vote
11
down vote

Also something like can do the work (with awk)

stat -c "%s" /etc/*.conf|awk '{s+=$1} END {print s}'

answered yesterday

Romeo Ninov

4,92931627

add a comment |

up vote
10
down vote

With `bc`

{ stat -c '%s+' /etc/*.conf ; echo 0 ; } | bc

The stat format adds a + sign and a continuation character after each size

a 0 is appended at the end to close the dangling final +

answered yesterday

xenoid

2,5881724

add a comment |

up vote
7
down vote

The most straightforward way is to use du -bc:

$ du -bc /etc/*.conf

5139    /etc/man_db.conf

393     /etc/nsswitch.conf

5532    total

If you need to extract only the number of bytes, pipe the output to awk:

$ du -bc /etc/*.conf | awk 'END { print $1 }'

5532

answered yesterday

Martin Frodl

893

New contributor

Hope ... OP doesn't require the grand total size of all files...
– msp9011
yesterday

Also note that this gives disk usage, not apparent sizes of the files. --apparent-size option may be needed to use apparent sizes.
– Ruslan
yesterday

@Ruslan The awk line also strips off the total
– Izkata
yesterday

@Izkata oh, indeed, didn't notice this bit.
– Ruslan
yesterday

add a comment |

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5 Answers
5

active

oldest

votes

5 Answers
5

active

oldest

votes

up vote
2
down vote

accepted

You can do this …

total=0

for s in $(stat /etc/*.conf | grep Size | cut -f4 -d' '); do 

    total=$(expr $total + $s)

done

answered yesterday

Red Cricket

1,20431731

Thanks! and if I want to output it in a file I do: echo total > my_file.txt, right? And what if I want to output the errors too what do I do then?
– C. Cristi
yesterday

4

Don't use grep or cut on stat output. stat has format flags (%s) for this
– ohno
yesterday

5

Also, 'Size' is likely to assume an English or "C " locale.
– xenoid
yesterday

add a comment |

up vote
2
down vote

accepted

You can do this …

total=0

for s in $(stat /etc/*.conf | grep Size | cut -f4 -d' '); do 

    total=$(expr $total + $s)

done

answered yesterday

Red Cricket

1,20431731

Thanks! and if I want to output it in a file I do: echo total > my_file.txt, right? And what if I want to output the errors too what do I do then?
– C. Cristi
yesterday

4

Don't use grep or cut on stat output. stat has format flags (%s) for this
– ohno
yesterday

5

Also, 'Size' is likely to assume an English or "C " locale.
– xenoid
yesterday

add a comment |

up vote
2
down vote

accepted

You can do this …

total=0

for s in $(stat /etc/*.conf | grep Size | cut -f4 -d' '); do 

    total=$(expr $total + $s)

done

answered yesterday

Red Cricket

1,20431731

You can do this …

total=0

for s in $(stat /etc/*.conf | grep Size | cut -f4 -d' '); do 

    total=$(expr $total + $s)

done

answered yesterday

Red Cricket

1,20431731

answered yesterday

Red Cricket

1,20431731

answered yesterday

Red Cricket

1,20431731

answered yesterday

Red Cricket

1,20431731

Thanks! and if I want to output it in a file I do: echo total > my_file.txt, right? And what if I want to output the errors too what do I do then?
– C. Cristi
yesterday

4

Don't use grep or cut on stat output. stat has format flags (%s) for this
– ohno
yesterday

5

Also, 'Size' is likely to assume an English or "C " locale.
– xenoid
yesterday

add a comment |

Thanks! and if I want to output it in a file I do: echo total > my_file.txt, right? And what if I want to output the errors too what do I do then?
– C. Cristi
yesterday

4

Don't use grep or cut on stat output. stat has format flags (%s) for this
– ohno
yesterday

5

Also, 'Size' is likely to assume an English or "C " locale.
– xenoid
yesterday

Thanks! and if I want to output it in a file I do: echo total > my_file.txt, right? And what if I want to output the errors too what do I do then?
– C. Cristi
yesterday

Don't use grep or cut on stat output. stat has format flags (%s) for this
– ohno
yesterday

Also, 'Size' is likely to assume an English or "C " locale.
– xenoid
yesterday

add a comment |

up vote
12
down vote

stat -c "%s" /etc/*.conf|paste -sd+|bc -l

answered yesterday

Ipor Sircer

10.2k11024

Although effectively the same as @xenoid's solution, I prefer this because 1) less rigamarole with format strings and remembering to append the final "0"; and 2) while it costs a process, it hews closer to the "one thing well" philosophy. It's also a useful use of the (perhaps underappreciated) paste utility that can be applied to a larger class of problems: separating a bunch of stuff with a delimiter. Another example is "unwrapping" (removing the line breaks from) a text file: paste -sd$' ' inputfile.
– TheDudeAbides
yesterday

@TheDudeAbides, all those things are true about awk. And it use one process less. And IMO is much more readable
– Romeo Ninov
20 hours ago

add a comment |

up vote
12
down vote

stat -c "%s" /etc/*.conf|paste -sd+|bc -l

answered yesterday

Ipor Sircer

10.2k11024

Although effectively the same as @xenoid's solution, I prefer this because 1) less rigamarole with format strings and remembering to append the final "0"; and 2) while it costs a process, it hews closer to the "one thing well" philosophy. It's also a useful use of the (perhaps underappreciated) paste utility that can be applied to a larger class of problems: separating a bunch of stuff with a delimiter. Another example is "unwrapping" (removing the line breaks from) a text file: paste -sd$' ' inputfile.
– TheDudeAbides
yesterday

@TheDudeAbides, all those things are true about awk. And it use one process less. And IMO is much more readable
– Romeo Ninov
20 hours ago

add a comment |

up vote
12
down vote

stat -c "%s" /etc/*.conf|paste -sd+|bc -l

answered yesterday

Ipor Sircer

10.2k11024

stat -c "%s" /etc/*.conf|paste -sd+|bc -l

answered yesterday

Ipor Sircer

10.2k11024

answered yesterday

Ipor Sircer

10.2k11024

answered yesterday

Ipor Sircer

10.2k11024

answered yesterday

Ipor Sircer

10.2k11024

Although effectively the same as @xenoid's solution, I prefer this because 1) less rigamarole with format strings and remembering to append the final "0"; and 2) while it costs a process, it hews closer to the "one thing well" philosophy. It's also a useful use of the (perhaps underappreciated) paste utility that can be applied to a larger class of problems: separating a bunch of stuff with a delimiter. Another example is "unwrapping" (removing the line breaks from) a text file: paste -sd$' ' inputfile.
– TheDudeAbides
yesterday

@TheDudeAbides, all those things are true about awk. And it use one process less. And IMO is much more readable
– Romeo Ninov
20 hours ago

add a comment |

Although effectively the same as @xenoid's solution, I prefer this because 1) less rigamarole with format strings and remembering to append the final "0"; and 2) while it costs a process, it hews closer to the "one thing well" philosophy. It's also a useful use of the (perhaps underappreciated) paste utility that can be applied to a larger class of problems: separating a bunch of stuff with a delimiter. Another example is "unwrapping" (removing the line breaks from) a text file: paste -sd$' ' inputfile.
– TheDudeAbides
yesterday

@TheDudeAbides, all those things are true about awk. And it use one process less. And IMO is much more readable
– Romeo Ninov
20 hours ago

Although effectively the same as @xenoid's solution, I prefer this because 1) less rigamarole with format strings and remembering to append the final "0"; and 2) while it costs a process, it hews closer to the "one thing well" philosophy. It's also a useful use of the (perhaps underappreciated) paste utility that can be applied to a larger class of problems: separating a bunch of stuff with a delimiter. Another example is "unwrapping" (removing the line breaks from) a text file: paste -sd$' ' inputfile.
– TheDudeAbides
yesterday

@TheDudeAbides, all those things are true about awk. And it use one process less. And IMO is much more readable
– Romeo Ninov
20 hours ago

add a comment |

up vote
11
down vote

Also something like can do the work (with awk)

stat -c "%s" /etc/*.conf|awk '{s+=$1} END {print s}'

answered yesterday

Romeo Ninov

4,92931627

add a comment |

up vote
11
down vote

Also something like can do the work (with awk)

stat -c "%s" /etc/*.conf|awk '{s+=$1} END {print s}'

answered yesterday

Romeo Ninov

4,92931627

add a comment |

up vote
11
down vote

Also something like can do the work (with awk)

stat -c "%s" /etc/*.conf|awk '{s+=$1} END {print s}'

answered yesterday

Romeo Ninov

4,92931627

Also something like can do the work (with awk)

stat -c "%s" /etc/*.conf|awk '{s+=$1} END {print s}'

answered yesterday

Romeo Ninov

4,92931627

answered yesterday

Romeo Ninov

4,92931627

answered yesterday

Romeo Ninov

4,92931627

answered yesterday

Romeo Ninov

4,92931627

add a comment |

up vote
10
down vote

With `bc`

{ stat -c '%s+' /etc/*.conf ; echo 0 ; } | bc

The stat format adds a + sign and a continuation character after each size

a 0 is appended at the end to close the dangling final +

answered yesterday

xenoid

2,5881724

add a comment |

up vote
10
down vote

With `bc`

{ stat -c '%s+' /etc/*.conf ; echo 0 ; } | bc

The stat format adds a + sign and a continuation character after each size

a 0 is appended at the end to close the dangling final +

answered yesterday

xenoid

2,5881724

add a comment |

up vote
10
down vote

With `bc`

{ stat -c '%s+' /etc/*.conf ; echo 0 ; } | bc

The stat format adds a + sign and a continuation character after each size

a 0 is appended at the end to close the dangling final +

answered yesterday

xenoid

2,5881724

With `bc`

{ stat -c '%s+' /etc/*.conf ; echo 0 ; } | bc

The stat format adds a + sign and a continuation character after each size

a 0 is appended at the end to close the dangling final +

answered yesterday

xenoid

2,5881724

answered yesterday

xenoid

2,5881724

answered yesterday

xenoid

2,5881724

answered yesterday

xenoid

2,5881724

add a comment |

up vote
7
down vote

The most straightforward way is to use du -bc:

$ du -bc /etc/*.conf

5139    /etc/man_db.conf

393     /etc/nsswitch.conf

5532    total

If you need to extract only the number of bytes, pipe the output to awk:

$ du -bc /etc/*.conf | awk 'END { print $1 }'

5532

answered yesterday

Martin Frodl

893

New contributor

Hope ... OP doesn't require the grand total size of all files...
– msp9011
yesterday

Also note that this gives disk usage, not apparent sizes of the files. --apparent-size option may be needed to use apparent sizes.
– Ruslan
yesterday

@Ruslan The awk line also strips off the total
– Izkata
yesterday

@Izkata oh, indeed, didn't notice this bit.
– Ruslan
yesterday

add a comment |

up vote
7
down vote

The most straightforward way is to use du -bc:

$ du -bc /etc/*.conf

5139    /etc/man_db.conf

393     /etc/nsswitch.conf

5532    total

If you need to extract only the number of bytes, pipe the output to awk:

$ du -bc /etc/*.conf | awk 'END { print $1 }'

5532

answered yesterday

Martin Frodl

893

New contributor

Hope ... OP doesn't require the grand total size of all files...
– msp9011
yesterday

Also note that this gives disk usage, not apparent sizes of the files. --apparent-size option may be needed to use apparent sizes.
– Ruslan
yesterday

@Ruslan The awk line also strips off the total
– Izkata
yesterday

@Izkata oh, indeed, didn't notice this bit.
– Ruslan
yesterday

add a comment |

up vote
7
down vote

The most straightforward way is to use du -bc:

$ du -bc /etc/*.conf

5139    /etc/man_db.conf

393     /etc/nsswitch.conf

5532    total

If you need to extract only the number of bytes, pipe the output to awk:

$ du -bc /etc/*.conf | awk 'END { print $1 }'

5532

answered yesterday

Martin Frodl

893

New contributor

The most straightforward way is to use du -bc:

$ du -bc /etc/*.conf

5139    /etc/man_db.conf

393     /etc/nsswitch.conf

5532    total

If you need to extract only the number of bytes, pipe the output to awk:

$ du -bc /etc/*.conf | awk 'END { print $1 }'

5532

answered yesterday

Martin Frodl

893

New contributor

answered yesterday

Martin Frodl

893

New contributor

answered yesterday

Martin Frodl

893

answered yesterday

Martin Frodl

893

New contributor

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

Hope ... OP doesn't require the grand total size of all files...
– msp9011
yesterday

Also note that this gives disk usage, not apparent sizes of the files. --apparent-size option may be needed to use apparent sizes.
– Ruslan
yesterday

@Ruslan The awk line also strips off the total
– Izkata
yesterday

@Izkata oh, indeed, didn't notice this bit.
– Ruslan
yesterday

add a comment |

Hope ... OP doesn't require the grand total size of all files...
– msp9011
yesterday

Also note that this gives disk usage, not apparent sizes of the files. --apparent-size option may be needed to use apparent sizes.
– Ruslan
yesterday

@Ruslan The awk line also strips off the total
– Izkata
yesterday

@Izkata oh, indeed, didn't notice this bit.
– Ruslan
yesterday

Hope ... OP doesn't require the grand total size of all files...
– msp9011
yesterday

Also note that this gives disk usage, not apparent sizes of the files. --apparent-size option may be needed to use apparent sizes.
– Ruslan
yesterday

@Ruslan The awk line also strips off the total
– Izkata
yesterday

@Izkata oh, indeed, didn't notice this bit.
– Ruslan
yesterday

add a comment |

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