Author: Linux Manual

nm – list symbols from object files Synopsisnm [-A|-o|–print-file-name] [-a|–debug-syms] [-B|–format=bsd] [-C|–demangle[=style]] [-D|–dynamic] [-fformat|–format=format] [-g|–extern-only] [-h|–help] [-l|–line-numbers] [-n|-v|–numeric-sort] [-P|–portability] [-p|–no-sort] [-r|–reverse-sort] [-S|–print-size] [-s|–print-armap] [-t radix|–radix=radix] [-u|–undefined-only] [-V|–version] [-X 32_64] [–defined-only] [–no-demangle] [–plugin name] [–size-sort] [–special-syms] [–synthetic] [–target=bfdname] [objfile…] DescriptionGNU nm lists the symbols from object files objfile…. If no object files are listed as arguments, nm assumes the file a.out. For each symbol, nm shows: • The symbol value, in…

ld – The GNU linker Synopsisld [options] objfile … Descriptionld combines a number of object and archive files, relocates their data and ties up symbol references. Usually the last step in compiling a program is to run ld. ld accepts Linker Command Language files written in a superset of AT&T‘s Link Editor Command Language syntax,…

gprof – display call graph profile data Synopsisgprof [ -[abcDhilLrsTvwxyz] ] [ -[ACeEfFJnNOpPqQZ][name] ]  [ -I dirs ] [ -d[num] ] [ -k from/to ]  [ -m min-count ] [ -R map_file ] [ -t table-length ]  [ –[no-]annotated-source[=name] ]   [ –[no-]exec-counts[=name] ]  [ –[no-]flat-profile[=name] ] [ –[no-]graph[=name] ]  [ –[no-]time=name] [ –all-lines ] [ –brief ]   [ –debug[=level] ] [ –function-ordering ]   [ –file-ordering map_file ] [ –directory-path=dirs ]  [ –display-unused-functions ] [ –file-format=name ]  [ –file-info ] [ –help ] [ –line ] [ –min-count=n ]  [ –no-static ] [ –print-path ] [ –separate-files ]  [ –static-call-graph ] [ –sum ] [ –table-length=len ]  [ –traditional ] [ –version ] [ –width=n ]  [ –ignore-non-functions ] [ –demangle[=STYLE] ]  [ –no-demangle ] [–external-symbol-table=name]   [ image-file ] [ profile-file … ] Description"gprof" produces an execution profile of C, Pascal, or Fortran77 programs. The effect of called routines is incorporated in the profile of each caller. The…

gdb – The GNU Debugger Synopsisgdb [-help] [-nx] [-q] [-batch] [-cd=dir] [-f] [-b bps] [-tty=dev] [-s symfile] [-e prog] [-se prog] [-c core] [-x cmds] [-d dir] [prog[core|procID]]DescriptionThe purpose of a debugger such as GDB is to allow you to see what is going on “inside” another program while it executes—or what another program was doing…

gdb – The GNU Debugger Synopsisgdb [-help] [-nx] [-q] [-batch] [-cd=dir] [-f] [-b bps] [-tty=dev] [-s symfile] [-e prog] [-se prog] [-c core] [-x cmds] [-d dir] [prog[core|procID]]DescriptionThe purpose of a debugger such as GDB is to allow you to see what is going on “inside” another program while it executes—or what another program was doing…

gcov – coverage testing tool Synopsisgcov [-v|–version] [-h|–help]   [-a|–all-blocks]   [-b|–branch-probabilities]   [-c|–branch-counts]   [-d|–display-progress]   [-f|–function-summaries]   [-i|–intermediate-format]   [-l|–long-file-names]   [-m|–demangled-names]   [-n|–no-output]   [-o|–object-directory directory|file]   [-p|–preserve-paths]   [-r|–relative-only]   [-s|–source-prefix directory]   [-u|–unconditional-branches]   files Descriptiongcov is a test coverage program. Use it in concert with GCC to analyze your programs to help create more efficient, faster running code and to discover untested parts of your program….

gcc – GNU project C and C++ compiler Synopsisgcc [-c|-S|-E] [-std=standard]  [-g] [-pg] [-Olevel]  [-Wwarn…] [-Wpedantic]  [-Idir…] [-Ldir…]  [-Dmacro[=defn]…] [-Umacro]  [-foption…] [-mmachine-option…]  [-o outfile] [@file] infile… Only the most useful options are listed here; see below for the remainder. g++ accepts mostly the same options as gcc. DescriptionWhen you invoke GCC, it normally does preprocessing, compilation, assembly and linking. The “overall options” allow you…

gcc – GNU project C and C++ compiler Synopsisgcc [-c|-S|-E] [-std=standard]  [-g] [-pg] [-Olevel]  [-Wwarn…] [-Wpedantic]  [-Idir…] [-Ldir…]  [-Dmacro[=defn]…] [-Umacro]  [-foption…] [-mmachine-option…]  [-o outfile] [@file] infile… Only the most useful options are listed here; see below for the remainder. g++ accepts mostly the same options as gcc. DescriptionWhen you invoke GCC, it normally does preprocessing, compilation, assembly and linking. The “overall options” allow you…

elfedit – Update the ELF header of ELF files. Synopsiselfedit [–input-mach=machine]   [–input-type=type]   [–input-osabi=osabi]   –output-mach=machine   –output-type=type   –output-osabi=osabi   [-v|–version]   [-h|–help]   elffile… Descriptionelfedit updates the ELF header of ELF files which have the matching ELF machine and file types. The options control how and which fields in the ELF header should be updated. elffile… are the ELF files…

cpp – The C Preprocessor Synopsiscpp [-Dmacro[=defn]…] [-Umacro]  [-Idir…] [-iquotedir…]  [-Wwarn…]  [-M|-MM] [-MG] [-MF filename]  [-MP] [-MQ target…]  [-MT target…]  [-P] [-fno-working-directory]  [-x language] [-std=standard]  infile outfile Only the most useful options are listed here; see below for the remainder. DescriptionThe C preprocessor, often known as cpp, is a macro processor that is used automatically by the C compiler to transform your program before compilation. It…

c++filt – Demangle C++ and Java symbols. Synopsisc++filt [-_|–strip-underscore]   [-n|–no-strip-underscore]   [-p|–no-params]   [-t|–types]   [-i|–no-verbose]   [-s format|–format=format]   [–help]  [–version]  [symbol…] DescriptionThe C++ and Java languages provide function overloading, which means that you can write many functions with the same name, providing that each function takes parameters of different types. In order to be able to distinguish these similarly named functions…

AS – the portable GNU assembler. Synopsisas [-a[cdghlns][=file]] [–alternate] [-D]  [–compress-debug-sections]  [–nocompress-debug-sections]  [–debug-prefix-map old=new]  [–defsym sym=val] [-f] [-g] [–gstabs]  [–gstabs+] [–gdwarf-2] [–gdwarf-sections]  [–help] [-I dir] [-J]  [-K] [-L] [–listing-lhs-width=NUM]  [–listing-lhs-width2=NUM] [–listing-rhs-width=NUM]  [–listing-cont-lines=NUM] [–keep-locals] [-o  objfile] [-R] [–reduce-memory-overheads] [–statistics]  [-v] [-version] [–version] [-W] [–warn]  [–fatal-warnings] [-w] [-x] [-Z] [@FILE]  [–size-check=[error|warning]]  [–target-help] [target-options]  [—|files …] Target AArch64 options: [-EB|-EL] [-mabi=ABI] Target Alpha options: [-mcpu] [-mdebug | -no-mdebug] [-replace | -noreplace] [-relax] [-g] [-Gsize] [-F] [-32addr] Target ARC options: [-marc[5|6|7|8]] [-EB|-EL] Target ARM options: [-mcpu=processor[+extension…]] [-march=architecture[+extension…]] [-mfpu=floating-point-format] [-mfloat-abi=abi] [-meabi=ver] [-mthumb] [-EB|-EL] [-mapcs-32|-mapcs-26|-mapcs-float|  -mapcs-reentrant] [-mthumb-interwork] [-k]…

ar – create, modify, and extract from archives Synopsisar [–plugin name] [-X32_64] [–]p[mod [relpos] [count]] [–target bfdname] archive [member…] DescriptionThe GNU ar program creates, modifies, and extracts from archives. An archive is a single file holding a collection of other files in a structure that makes it possible to retrieve the original individual files (called…

addr2line – convert addresses into file names and line numbers. Synopsisaddr2line [-a|–addresses]     [-b bfdname|–target=bfdname]     [-C|–demangle[=style]]     [-e filename|–exe=filename]     [-f|–functions] [-s|–basename]     [-i|–inlines]     [-p|–pretty-print]     [-j|–section=name]     [-H|–help] [-V|–version]     [addr addr …] Descriptionaddr2line translates addresses into file names and line numbers. Given an address in an executable or an offset in a section of a relocatable object, it uses the debugging information to figure…

rancid – Cisco configuration filter Synopsisrancid [-dlCV] [-t device_type] (-f filename | hostname) rancid [-dhlCV] -t device_type (-f filename | hostname) Descriptionrancid is a collection of perl(1) scripts which uses the login scripts (see clogin(1)) to login to a device, execute commands to display the configuration, etc, then filters the output for formatting, security, and…

clogin – Cisco login script Synopsisclogin [-autoenable] [-noenable] [-dSV] [-c  command] [-E  var=x] [-e  enable-password] [-f  cloginrc-file] [-p  user-password] [-s  script-file] [-t  timeout] [-u  username] [-v  vty-password] [-w  enable-username] [-x  command-file] [-y  ssh_cypher_type] router [router…] Descriptionclogin is an expect(1) script to automate the process of logging into a Cisco router, Catalyst switch, Extreme switch, Juniper…

avlcpt – convert ArcView Legend gradients to GMT colour palette tables Synopsis avlcpt [-b rgb] [-f rgb] [-h] [-l adjust] [-n rgb] [-o file] [-p precision] [-u adjust] [-v] [-V] [file]DescriptionThe avlcpt utility will extract a gradient from an ArcView Legend (avl) file and write it to the GMT (Generic Mapping Tools) cpt format. Note that not every avl file will contain…

avisync – adjust audio synchronisation Synopsisavisync [ -o file -i file -q -n num -b num -a track -f commentfile ] Copyrightavisync is Copyright (C) by Thomas Oestreich. Descriptionavisync shift audio on frame basis. Options-o name Specify the name of the output file. -i file Specify the name of the input file. -q be less…

avisplit – split AVI-files into chunks of a maximum size Synopsisavisplit [ -i file -o base [ -s size ] [ -H num ] [ -t s1-s2[,s3-s4,..] -c -m -b num -f commentfile ] ] [ -v ] Copyrightavisplit is Copyright (C) by Thomas Oestreich. Descriptionavisplit splits a single AVI-file into chunks of size size….

avimerge – merge several AVI-files into one Synopsisavimerge -o name -i file1 [ file2 [ … ] ] [ -p file ] [ -a num ] [ -A num ] [ -b num ] [ -c ] [ -f commentfile ] [ -x indexfile ] Copyrightavimerge is Copyright (C) by Thomas Oestreich. Descriptionavimerge is a…