Linux in a Nutshell, 6th Edition

File Management

Command	Action
cat	Concatenate files or display them.
chattr	Change attributes on an ext2 file.
chgrp	Change group of files.
chmod	Change access modes on files.
chown	Change ownership of files.
chsh	Change login shell.
cp	Copy files.
csplit	Split a file into pieces with a specific size or at specific locations.
dd	Copy files in raw disk form.
file	Determine a file’s type.
head	Show the first few lines of a file.
hexdump	Display files in hexadecimal format.
less	Display files by screenful, forward and backward.
ln	Create filename aliases.
ls	List files and directories.
md5sum	Compute MD5 checksum.
merge	Merge changes from different files.
mkdir	Create a directory.
more	Display files by screenful, forward only.
mv	Move or rename files or directories.
newgrp	Change current group.
od	Display files in octal format.
pwd	Print working directory.
rm	Remove files.
rmdir	Remove directories.
sha1sum	Compute SHA1 checksum
shred	Securely delete files.
split	Split files evenly.
tac	Print lines of a file in reverse order.
tail	Show the last few lines of a file.
tailf	Follow the growth of a logfile.
touch	Update file timestamps and create the file if it doesn’t exist.
wc	Count lines, words, and characters.