Redhat-Linux/Redhat.-.Day8(Sorting).txt at master · prtm/Redhat-Linux · GitHub

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sort command allow us to sort the content of file.By default alphabetical order

cat > test_file
Sanjay, 30
Sarvan, 32
Vikram, 12
Albert, 19
---------
sort test_file
Albert, 19
Sanjay, 30
Sarvan, 32
Vikram, 12
----------------------------------------------
How to sort by column by linux

sort -k2 test_file
Vikram, 12
Albert, 19
Sanjay, 30
Sarvan, 32
-------------------------------------------
How to sort in reverse order in linux

sort -r -k2 test_file
Sarvan, 32
Sanjay, 30
Albert, 19
Vikram, 12
------------------------------------------------
How to merge file with sort
cat sample_file

Sodi,   45
Vakar,  34
---------
-m  option allow us merge files in single file.

sort -m sample_file    test_file
Sanjay, 30
Sarvan, 32
Sodi,   45
Vakar,  34
Vikram, 12
Albert, 19

cat demo_file
Sanjay, 30
Sarvan, 32
Sodi,   45
Vakar,  34
Vikram, 12
Albert, 19

------------------------------------------------
How to save sort output file

By default sort command will print out on standard ouput.Nothing is going to write in file.To save output in file either use -o option
or use redirect

sort -r demo_file > new_file
          or
sort -r demo_file -o new_file

---------------------------------------------------
How to sort number in linux

Use -n option to sort based on number.Create a simple file with numbers and use default sort order.
It sorted alphabetically

cat > number_file
5
56
7
4
6

sort number_file
4
5
56
6
7

To sort this based on number -n optio
sort -n number_file
4
5
6
7
56

------------------------------------------------
How to sort files by size

You can sort files by size with use of sort command

sort ls -l | sort -k5

---------------------------------------------------
man sort