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displays
1.
whatis
Command whatis Searches for whole words in the database whatis (see command apropos). Syntax whatis keyword Options no Description whatis command
displays
the result of search whole words ...
2.
wc
Command wc
Displays
the number of bytes, words and lines found in the file. Syntax wc [options] [files] Options -c
displays
only the number of bytes. -w only shows the number of words. -l ...
3.
uptime
Command uptime
Displays
the time of continuous operation of the system. Syntax uptime Options no Description uptime utility
displays
the current time, time of continuous operation of the system, ...
4.
uname
Command uname
Displays
system information, such as the type of machine and operating system. Syntax uname [options] Options -a
displays
all the information. -m
displays
the type of equipment ...
5.
top
Command top
Displays
a list of currently executing processes, ordered by the percentage use of CPU time. Syntax top [q] [d interval] Options q requires top performance with the highest possible ...
6.
tar
... current directory. -r adds the files in the archive. -t
displays
the contents of the archive. -x extracts files from the archive. -C directory extracts the files in the specified directory. -f file ...
7.
tail
Command tail
Displays
the last few lines of the file. Syntax tail [options] file Options -N (where N - number)
displays
the last N lines. -n N (where N - number)
displays
the last N lines. -f ...
8.
rm
... contained in the catalog. -v
displays
the names of the files before deleting them. Description The rm command removes the specified files. To delete a file, you must have the right to record the directory ...
9.
pstree
Command pstree
Displays
all running processes in a tree. Syntax pstree [options] [process_id] Options -a
displays
the command line arguments. -c does not compress the subtrees. -l
displays
a long ...
10.
ps
Command ps
Displays
the status of processes (programs) running in the system. Syntax ps [options] Options Note that unlike other commands ps command options do not have a prefix "-". a display ...
11.
mv
... -f remove existing files without confirmation. -i asks for confirmation before overwriting existing files. -v
displays
the name of the file before moving. Description The mv command renames a file ...
12.
more
Command more Performs view text files. Syntax more [options] file_names Options +N (where N - number)
displays
the file, starting at the specified line number. +/pattern begins with a display ...
13.
man
... indicates listatel pager leadership (eg, less). -a
displays
all man-pages that match a specific command. -h
displays
help for the team only man. -w indicates the location of the displayed man-pages. Description ...
14.
ls
Command ls Prints the contents of the directory. Syntax ls [options] [directory-names] Options -a
displays
all files, including those with names starting with a dot (.). -b
displays
unprintable ...
15.
ln
... a directory (this can be done only by root). -f remove existing file named newname. -help
displays
help for the team. -s creates a symbolic link. -v generates detailed output information. Description ...
16.
less
Command less less command
displays
text files (with the possibility of searching through back). Syntax less [options] file_name Options -?
displays
a list of commands that can use less. -p
displays
...
17.
ldd
Command ldd ldd command
displays
the names of shared libraries required for execution. Syntax ldd [options] program Options -v
displays
the version number of ldd. -V
displays
the version number ...
18.
kill
Command - kill Kill command sends a signal to the process. Syntax kill [options] id_process Options -Nsignal sends a specified signal (where Nsignal - the number or name). -l
displays
the number ...
19.
info
Command info info command
displays
online help for any command Linux. Syntax info [options] command Options -d add the directory to the list of directories in which files are being explored. ...
20.
id
Command id Id command
displays
the user ID, group ID and user groups. Syntax id [options] [username] Options -g prints only the group ID. -n
displays
the name of the group, rather than group ...
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