Commands+you+should+know

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 * man **
 * cd **
 * |, >, <, & **
 * less **
 * grep **
 * cat **
 * vi, nano **
 * sudo **
 * su **
 * passwd **
 * ls **
 * top **
 * ps **
 * netstat **
 * rm **
 * mv **
 * <span style="background-color: transparent; font-family: Arial; font-size: 15px; text-decoration: none; vertical-align: baseline;">mkdir **
 * <span style="background-color: transparent; font-family: Arial; font-size: 15px; text-decoration: none; vertical-align: baseline;">cp **
 * <span style="background-color: transparent; font-family: Arial; font-size: 15px; text-decoration: none; vertical-align: baseline;">who **
 * <span style="background-color: transparent; font-family: Arial; font-size: 15px; text-decoration: none; vertical-align: baseline;">which **