Index_D

D

date command, 66, 69, 90, 139, 220

date formats, normalizing, 15 “18

date format string, 141

date, system, 139 “41

debugging shell scripts, 38 “41

define script, 178 “80

defining words, 178 “80

.deleted-files directory, 47, 49

deleteuser script, 124, 129 “31

deleting user accounts, 129 “31

/dev/null directory, 233 “34

/dev/null shells , 302

df command, 117

df output, improving readability of, 118 “20

dictionary, adding, 80 “82

diff command, 311

DIR script, 61 “63

directories

See also names of specific directories

backing up, 161 “63

code, 56 “57, 161 “62

displaying contents of, 56 “58

synchronizing with ftp, 244 “47

Directory block, 293

disk quota exceeded error message, 116

diskhogs script, 115 “17

disks

analyzing usage, 113 “14

available space, 117 “18

reporting hogs, 115 “17

diskspace script, 117 “18

ditto command, 305

docron, 154

docron script, 152 “54

downloading files, 169 “72

du command, 113