System information

An Introduction to Shells in General
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here is provided "as is", and there is no guarantee that any of the examples shown will work in your
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Revision 1.02 October 2002 53
5.3.24 logger
Syntax: logger [OPTION]... [MESSAGE]
Write MESSAGE to the system log. If MESSAGE is omitted, log stdin.
Options:
-s Log to stderr as well as the system log.
-t Log using the specified tag (defaults to user name).
-p Enter the message with the specified priority.
This may be numerical or a ``facility.level'' pair.
Example:
$ logger "hello"
5.3.25 logname
Syntax: logname
Print the name of the current user.
Example:
$ logname
root
5.3.26 logread
Syntax: logread
Shows the messages from syslogd (using circular buffer).
5.3.27 ls
Syntax: ls [-1AacCdeFilnpLRrSsTtuvwxXhk] [filenames...]
List directory contents.
Options:
-1 list files in a single column
-A do not list implied . and ..
-a do not hide entries starting with .
-C list entries by columns
-c with -l: show ctime
-d list directory entries instead of contents
-e list both full date and full time
-F append indicator (one of */=@|) to entries
-i list the i-node for each file
-l use a long listing format
-n list numeric UIDs and GIDs instead of names
-p append indicator (one of /=@|) to entries
-L list entries pointed to by symbolic links
-R list subdirectories recursively
-r sort the listing in reverse order
-S sort the listing by file size
-s list the size of each file, in blocks
-T NUM assume Tabstop every NUM columns
-t with -l: show modification time