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I have a file
ksh$ cat test
b d
b c
a b
a a
I want to sort on first field but I want stable sort i.e. order of 2nd field should remain the same. I want output as:
a b
a a
b d
b c
If I try:
ksh$sort -k1 -s test
I get
a a
a b
b c
b d
Please help,
Thanks
312
The sort command is used in Linux to print the output of a file in given order. This command processes on your data (the content of the file or output of any command) and reorders it in the specified way, which helps us to read the data efficiently.
Sort a File Numerically To sort a file containing numeric data, use the -n flag with the command. By default, sort will arrange the data in ascending order. If you want to sort in descending order, reverse the arrangement using the -r option along with the -n flag in the command.
How to sort by number. To sort by number pass the -n option to sort . This will sort from lowest number to highest number and write the result to standard output. Suppose a file exists with a list of items of clothing that has a number at the start of the line and needs to be sorted numerically.
You forgot to constrain the key fields. By default it uses until the end of the line.
sort -k1,1 -s t.txt
You must specify the end field:
sort -k1,1 -s test
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