index(1) - phpMan

aria_ftdump (1)      - display full-text index information
arybase (3pm)        - Set indexing base via $[
doveadm-dump (1)     - Dump the content of Dovecot's binary mailbox index/log
doveadm-fts (1)      - Manipulate the Full Text Search (FTS) index
doveadm-index (1)    - Index mailboxes
git-add (1)          - Add file contents to the index
git-apply (1)        - Apply a patch to files and/or to the index
git-checkout-index (1) - Copy files from the index to the working tree
git-diff-files (1)   - Compares files in the working tree and the index
git-diff-index (1)   - Compares content and mode of blobs between the index a...
git-index-pack (1)   - Build pack index file for an existing packed archive
git-ls-files (1)     - Show information about files in the index and the work...
git-merge-index (1)  - Run a merge for files needing merging
git-merge-one-file (1) - The standard helper program to use with git-merge-index
git-merge-tree (1)   - Show three-way merge without touching index
git-read-tree (1)    - Reads tree information into the index
git-rm (1)           - Remove files from the working tree and from the index
git-show-index (1)   - Show packed archive index
git-update-index (1) - Register file contents in the working tree to the index
git-write-tree (1)   - Create a tree object from the current index
if_freenameindex (3) - get network interface names and indexes
if_freenameindex (3p) - free memory allocated by if_nameindex
if_indextoname (3)   - mappings between network interface names and indexes
if_indextoname (3p)  - map a network interface index to its corresponding name
if_nameindex (3)     - get network interface names and indexes
if_nameindex (3p)    - return all network interface names and indexes
if_nametoindex (3)   - mappings between network interface names and indexes
if_nametoindex (3p)  - map a network interface name to its corresponding index
index (3)            - locate character in string
index (3p)           - character string operations (LEGACY)
mandb (8)            - create or update the manual page index caches
mkfontdir (1)        - create an index of X font files in a directory
mkfontscale (1)      - create an index of scalable font files for X
myisam_ftdump (1)    - display full-text index information
perluniprops (1)     - Index of Unicode Version 6.1.0 character properties in...
ptx (1)              - produce a permuted index of file contents
ranlib (1)           - generate index to archive.
rindex (3)           - locate character in string
rindex (3p)          - character string operations (LEGACY)
systemd.directives (7) - Index of configuration directives
systemd.index (7)    - List all manpages from the systemd project
tc-tcindex (8)       - traffic control index filter