code references


Unix Linux Commands

  • man - manual 
  • ls - list directory contents
  • mkdir - create directory mkdir {NAME}
  • pwd - print name of current/working directory
  • more - file perusal filter for crt viewing. 
  • More is a filter for paging through text one screenful at a time.  This version is especially primitive.  Users should realize that less(1) provides more(1) emulation and extensive enhancements. See man for more
  • less  Less  is a program similar to more (1), but which allows backward movement in the file as well as       forward movement.  Also, less does not have to read the entire input  file  before  starting,  so       with  large input files it starts up faster than text editors like vi (1).  Less uses termcap (or terminfo on some systems), so it can run on a variety of terminals.  There is even  limited  support  for  hardcopy terminals.  (On a hardcopy terminal, lines which should be printed at the top      of the screen are prefixed with a caret.) Commands are based on both more and vi.  
  • cp - copy
  • cat -  concatenate files and print on the standard output
  • rm - remove files or directories. 
  • rmdir - remove empty director. 
  • mv - move or rename files. 
  • echo - display a line of text. 
  • date - print or set the system date and time
  • time - The  time command runs the specified program command with the given arguments.  When command finishes, time writes a message to standard error giving timing statistics about this  program  run. These  statistics  consist  of (i) the elapsed real time between invocation and termination, (ii) the user CPU time (the sum of the tms_utime and tms_cutime values in a struct tms as returned  by times(2)),  and  (iii)  the  system CPU time (the sum of the tms_stime and tms_cstime values in a struct tms as returned by times(2)).
  • alias
  • history
  • fs - Under AFS, fs is a file system command. 
  • cd - change directory.