$cat:
Syntax: cat > filename
- It is use to create a file
- It is display the contents of a file
- It is used to merge more than one file into new file. If new file already exists than it will overwritten otherwise it will be created.
- It is also used to merged more than one file and it will appened at ladt in a new file.
- It is use to append the data at the end of file.
- It is used to display the contents of a file with line number.
- It is used to create hidden files.
Examples:
- cat >Maulik
It will create new file named Maulik like,
cat > Maulik
Maulik Dave
Div A
Roll No 009
^Z
- cat BPCCS
It will show all the content of the file.
- cat file1 file2 file3 >file4
It will merge all the data of file1, file2 and file3 and store in file4.
- cat file1 file2 file3 >>file4
It will append all the data of file1, file2 and file3 in file4.
- cat -n file1
It will show all the data with line number like,
1. Maulik Dave
2. Div A
3. Roll No 009
- cat >.Maulik
It will make new hidden file.
