Basic Unix Utilities

• man, xman, info, apropos
  • UNIX built-in help, use these to get information on almost any Unix program.
  • man ls; man man; man info; man xman;
  • apropos "X windows": shows you commands with the word X Windows in the title.
• file browsers are similar to such things on windows, they give you a graphical view of your file hierarchy.
  • konqueror (KDE)
  • gmc (gnome)
  • nautilus (gnome)
  • /usr/dt/bin/dtfile (CDEvil)

• ls, mkdir, cp, cd, etc:
• more, less, cat: to view files, cat to concatinate files
  • more  /.bashrc
  • less $MAIL

  • cat file1 file2>file3
    

• find stuff
  • find
  • find . -name *substring*

  • locate: uses a database which it rebuilds periodically, so it doesnt have to search the entire hard drive.
  • whereis: will find binaries, source, and man pages for a command

• tar, gtar, zip: are used for compression
  • gzip myfile; gunzip myfile
  • tar -zcvf mydir.tgz mydir#zip, create, verbose, filename
  • zip & unzip are similar

• secure stuff:
  • ssh replaces telnet (also sets DISPLAY)
  • stdsun script on CIS: helps manage ssh keys and use the stdsun alias at the same time, since the IP address is always different when using stdsun.

  • scp: securely copy from one computer to another, uses ssh
    scp ijones@monk.syntaxpolice.org:/home/ijones/tmp/myfile ./myfile
• script FIXME

• grep: search through a file w/ regular expressions. REs are too complex to talk about here, but for simple text searching, grep is also useful. It searches a file for a string. grep bash .* egrep b.sh .* egrep b*sh grep -r "love affair"  /Mail