c filt(1) - phpMan

bcomps (1)           - biconnected components filter for graphs
BIO_f_base64 (3ssl)  - base64 BIO filter
BIO_f_cipher (3ssl)  - cipher BIO filter
BIO_f_md (3ssl)      - message digest BIO filter
BIO_f_null (3ssl)    - null filter
BIO_get_cipher_ctx (3ssl) - cipher BIO filter
BIO_get_cipher_status (3ssl) - cipher BIO filter
BIO_get_md (3ssl)    - message digest BIO filter
BIO_get_md_ctx (3ssl) - message digest BIO filter
BIO_new_CMS (3ssl)   - CMS streaming filter BIO
BIO_set_cipher (3ssl) - cipher BIO filter
BIO_set_md (3ssl)    - message digest BIO filter
bzless (1)           - file perusal filter for crt viewing of bzip2 compresse...
bzmore (1)           - file perusal filter for crt viewing of bzip2 compresse...
c++filt (1)          - Demangle C++ and Java symbols.
ccomps (1)           - connected components filter for graphs
circo (1)            - filter for circular layout of graphs
col (1)              - filter reverse line feeds from input
colcrt (1)           - filter nroff output for CRT previewing
Data::Dump::Filtered (3pm) - Pretty printing with filtering
dbilogstrip (1)      - filter to normalize DBI trace logs for diff'ing
DBM_Filter (3pm)     - - Filter DBM keys/values
DBM_Filter::compress (3pm) - filter for DBM_Filter
DBM_Filter::encode (3pm) - filter for DBM_Filter
DBM_Filter::int32 (3pm) - filter for DBM_Filter
DBM_Filter::null (3pm) - filter for DBM_Filter
DBM_Filter::utf8 (3pm) - filter for DBM_Filter
dijkstra (1)         - single-source distance filter
dot (1)              - filter for drawing directed graphs
fdp (1)              - filter for drawing undirected graphs
Filter::cpp (3pm)    - cpp source filter
Filter::decrypt (3pm) - template for a decrypt source filter
Filter::exec (3pm)   - exec source filter
Filter::sh (3pm)     - sh source filter
Filter::Simple (3pm) - Simplified source filtering
Filter::tee (3pm)    - tee source filter
Filter::Util::Call (3pm) - Perl Source Filter Utility Module
Filter::Util::Exec (3pm) - exec source filter
Filter::Util::perlfilter (3pm) - Source Filters
fold (1p)            - filter for folding lines
funzip (1)           - filter for extracting from a ZIP archive in a pipe
git-filter-branch (1) - Rewrite branches
HTML::Filter (3pm)   - Filter HTML text through the parser
ip6tables (8)        - administration tool for IPv4/IPv6 packet filtering and...
iptables (8)         - administration tool for IPv4/IPv6 packet filtering and...
Mail::Filter (3pm)   - filter mail through multiple subroutines
makedumpfile.conf (5) - The filter configuration file for makedumpfile(8).
more (1)             - file perusal filter for crt viewing
msgfilter (1)        - edit translations of message catalog
neato (1)            - filter for drawing undirected graphs
nl (1p)              - line numbering filter
osage (1)            - filter for drawing clustered graphs
pam_filter (8)       - PAM filter module
patchwork (1)        - filter for drawing clustered graphs as treemaps
pcap-filter (7)      - packet filter syntax
perldbmfilter (1)    - Perl DBM Filters
Pod::Parser (3pm)    - base class for creating POD filters and translators
posix_trace_get_filter (3p) - retrieve and set the filter of an initialized t...
posix_trace_set_filter (3p) - set filter of an initialized trace stream (TRAC...
sed (1)              - stream editor for filtering and transforming text
selinux_netfilter_context_path (3) - These functions return the paths to the ...
sfdp (1)             - filter for drawing large undirected graphs
sieve-filter (1)     - Pigeonhole's Sieve mailbox filter tool
spamassassin (1)     - extensible email filter used to identify spam
spamassassin-run (1) - simple front-end filtering script for SpamAssassin
spamassassin-run (3pm) - simple front-end filtering script for SpamAssassin
tc-basic (8)         - basic traffic control filter
tc-cgroup (8)        - control group based traffic control filter
tc-connmark (8)      - netfilter connmark retriever action
tc-ematch (8)        - extended matches for use with "basic", "cgroup" or "fl...
tc-flow (8)          - flow based traffic control filter
tc-flower (8)        - flow based traffic control filter
tc-fw (8)            - fwmark traffic control filter
tc-matchall (8)      - traffic control filter that matches every packet
tc-route (8)         - route traffic control filter
tc-tbf (8)           - Token Bucket Filter
tc-tcindex (8)       - traffic control index filter
tc-u32 (8)           - universal 32bit traffic control filter
tred (1)             - transitive reduction filter for directed graphs
twopi (1)            - filter for radial layouts of graphs
uniq (1p)            - report or filter out repeated lines in a file
XML::SAX::Base (3pm) - Base class SAX Drivers and Filters
XML::SAX::BuildSAXBase (3pm) - Base class SAX Drivers and Filters
zless (1)            - file perusal filter for crt viewing of compressed text
zmore (1)            - file perusal filter for crt viewing of compressed text