====== Utilities ====== A collection of scripts and the like which I have come to rely on. ===== BASH shell ===== ==== Red STDERR ==== Runs the command given, but colours STDERR red, making it easier to spot problems when there is a lot of output. Particularly useful with "make" commands. # Red STDERR # rse function rse() { # We need to wrap each phrase of the command in quotes to preserve arguments that contain whitespace # Execute the command, swap STDOUT and STDERR, colour STDOUT, swap back ((eval $(for phrase in "$@"; do echo -n "'$phrase' "; done)) 3>&1 1>&2 2>&3 | sed -e "s/^\(.*\)$/\1/") 3>&1 1>&2 2>&3 } export -f rse # Export function, so it is available to subshells Examples: rse find /etc -iname \*.conf 
...
/etc/debconf.conf
/etc/ca-certificates.conf
/etc/gssapi_mech.conf
find: /etc/ssl/private: Permission denied
/etc/pam.conf
/etc/nsswitch.conf
/etc/sestatus.conf
...
==== Multi-Move ==== Allows renaming of multiple files using pattern matching. # Multi-Move # mm [file list/glob] [regexp match] [regexp replace] function mm { [ "$#" -eq 0 ] && echo "mm [file list/glob] [regexp match] [regexp replace]" >&2 && return for file in $1; do mv "$file" "$(echo $file | sed -e "s/$2/$3/")"; done } export -f mm Example: # Files before: $ ls 1.dat 1.txt 10.txt 2.dat 2.txt 3.dat 3.txt 4.dat 4.txt 5.txt 6.txt 7.txt 8.txt 9.txt # Rename *.txt -> *.txt.bak $ mm '*.txt' '.txt' '.txt.bak' # Files after: $ ls 1.dat 1.txt.bak 10.txt.bak 2.dat 2.txt.bak 3.dat 3.txt.bak 4.dat 4.txt.bak 5.txt.bak 6.txt.bak 7.txt.bak 8.txt.bak 9.txt.bak # Files before: $ ls a_1.html a_2.html a_3.html b_1.html b_2.html b_3.html c_1.html c_2.html c_3.html a_1.txt a_2.txt a_3.txt b_1.txt b_2.txt b_3.txt c_1.txt c_2.txt c_3.txt # Pad numbers with zeros # Use escaped parenthesis to capture one or more characters in the range 0-9, and replace them with "0" + "previous contents" $ mm '*' '\([0-9]\+\)' '0\1' # Files after: $ ls a_01.html a_02.html a_03.html b_01.html b_02.html b_03.html c_01.html c_02.html c_03.html a_01.txt a_02.txt a_03.txt b_01.txt b_02.txt b_03.txt c_01.txt c_02.txt c_03.txt ==== Generate Cscope database ==== Creates a cscope database for the current directory, suitable for use with a vim which has been compiled with +cscope. #!/bin/bash echo Creating file list... find `pwd` "$@" -name \*.c -o -name \*.h -o -name \*.cpp -o -iname Makefile -o -name \*.mak | sed -e 's/^/"/g' -e 's/$/"/g'> cscope.files echo Building database... cscope -b -q echo Done ==== Propagate RC files ==== Simple script to push my config files from the current host to all others in my list #!/bin/bash # Copies local .vimrc, .screenrc and other settings to all my other accounts # TODO: Possibly account for my tablet PC, which isn't always on cd ~ FILELIST=" .vimrc .screenrc .bashrc .bash_profile editor.sh less.sh propagate_rc_files.sh .vim " if [ $# -gt 0 ]; then HOSTLIST="$@" else HOSTLIST=" meermanr@ikari.robmeerman.co.uk: meermanr@ryoga.robmeerman.co.uk: meermanr@ryo-ohki.robmeerman.co.uk: " fi function IPof() { # POSIX if [ -x "$(which traceroute 2>/dev/null)" ]; then traceroute -m 1 -w 2 $1 2>&1 \ | head -n1 \ | cut -d " " -f 4 \ | tr -d "()," # Windows (Cygwin) elif [ -x "$(which tracert 2>/dev/null)" ]; then tracert -h 1 -w 1 $1 \ | head -n2 \ | tail -n1 \ | cut -d " " -f 5 \ | tr -d "[]\015" # Snip ^M off the end, stupid Windows<->Cygwin interworking! fi } # Find local IP if [ -x "/sbin/ifconfig" ]; then LOCAL_IP=$(/sbin/ifconfig | head -n2 | tail -n1 | sed -e 's/^[^0-9]\+//' | cut -d ' ' -f1) elif [ -x "/cygdrive/c/WINDOWS/system32/ipconfig" ]; then LOCAL_IP=$(ipconfig | grep -C3 "Local Area Connection" | grep "IP Address" | tail -n1 | cut -d : -f 2 | sed -e 's/\s\+\(\S\+\)\s\+/\1/') else LOCAL_IP="" fi echo LOCAL_IP = \"$LOCAL_IP\" for HOST in $HOSTLIST; do TARGET_HOST=$(echo $HOST | cut -d '@' -f2 | cut -d ':' -f1) TARGET_IP=$( IPof $TARGET_HOST ) # Function call echo $TARGET_HOST = \"$TARGET_IP\" [ "$LOCAL_IP" = "$TARGET_IP" ] && echo "Skipping..." && continue [ "127.0.1.1" = "$TARGET_IP" ] && echo "Skipping..." && continue echo Uploading to $HOST scp -r ${FILELIST} $HOST echo ___ echo done ==== pb ==== Runs a command in a Microsoft Platform Builder environment. #!/usr/bin/bash # vim: set ft=sh: # Runs a command in a Microsoft Windows CE Platform Builder environment # If you don't have a buildenv.bat you can create one by running # # pbxmlutils /getbuildenv > ../../buildenv.bat # # from inside a build window (Visual Studio -> Build -> Open Release Directory # in Build Window). # Note the parenthesis below, all commands inside them are run in a # sub-shell, which prevents the export polluting the current shell ( PB_BUILDENV_BAT=/cygdrive/c/WINCE600/OSDesigns/mwin/WINCE600/OSDesigns/mali-win-ebmpcore/buildenv.bat # Convert all "set" commands in $PB_BUILDENV_BAT to "export" commands, # and evaluate them (updating this sub-shell's environment) eval \ $( grep '^set' $PB_BUILDENV_BAT \ | sed \ -e 's/^set /export /' \ -e 's/=/="/' \ -e 's/$/"/' \ -e 's/\\/\\\\/g' \ ) # Convert paths in $PATH from Win32 style ("c:\foo;c:\bar") to Cygwin # style ("/cygdrive/c/foo:/cygrive/c/bar) using the `cygpath` utility # NB: Must use absolute paths here, because the effective $PATH is trashed! eval \ $( echo export PATH=\"$PATH\" \ | /usr/bin/sed -e 's/;/\n/g' \ | /usr/bin/xargs --delimiter="\n" /usr/bin/cygpath -u \ | /usr/bin/tr "\n" ":" ) # Run arguments in this altered sub-shell "$@" ) Example: # What happens without the "pb" command $ build -bash: build: command not found # And with the "pb" command $ pb build /home/robmee01/usr/bin/pb: line 32: export: `WECVERSIONFORROSEBUD.1488=2': not a valid identifier BUILD: [Thrd:Sequence:Type ] Message BUILD: [00:0000000000:PROGC ] Build started with parameters: BUILD: [00:0000000001:PROGC ] Build started in directory: c:\work\WinCE\estimate_current_directory ... ==== mymake ==== Convenience script which picks the appropriate build method. Suited for use as a one-fire make command from vim. '':set makeprg=~/usr/bin/mymake'' Written primarily to allow me compile GNU-Make and Microsoft-Platform-Builder((i.e. WindowsCE builds)) driven sources using a single command which works out which to call, and mangles the output from Platform Builder so it looks more like "traditional" compiler output which I vim can parse. #!/usr/bin/bash # Wrapper script to find the most appropriate build method depending on where # it is called from # Configure pre/post scripts # Note that ":" is a BASH built-in which returns true (0) if [ -r ./mymake-pre ]; then PREEXEC=./mymake-pre else PREEXEC=: fi if [ -r ./mymake-post ]; then POSTEXEC=./mymake-post else POSTEXEC=: fi if [ -e sources -o -e dirs ]; then # WindowsCE # Mangle the output so it resembles every other compiler on the planet, # and thus can be intepreted by decent text editors $PREEXEC && \ pb build "$@" 2>&1 \ | tr -d "\\015" \ | grep -e "WARNN\\|ERRORE" \ | sed -e "s@^.*] @@" -e "s@ : @:@" \ && $POSTEXEC exit fi for filename in ./mymake ../mymake; do if [ -x $filename ]; then $PREEXEC && exec $filename "$@" && $POSTEXEC elif [ -r $filename ]; then $PREEXEC && source $filename "$@" && $POSTEXEC exit fi done if [ -e Makefile -o -e GNUMakefile ]; then $PREEXEC && make "$@" && $POSTEXEC exit fi echo "Don't know how to make this directory, sorry." ==== python-win ==== Runs a python script using the Win32 version of Python from within Cygwin. Only useful if you have both Cygwin-python and Win32-python installed on the same machine. #!/usr/bin/bash # Wrapper to allow shell scripts to be run using the Windows (not Cygwin) version of Python # Specifically, translates the first argument into a Windows-friendly path, and hands-off to Python SCRIPT=$1; shift exec /cygdrive/c/Python25/python.exe $(cygpath -w "$SCRIPT") "$@" ==== dexplore-jump.py ==== Jump to a topic in the Microsoft Visual Studio 2005 Documentation explorer (''dexplore.exe'') via the command line. I wrote this so I could use vim's manpage-lookup feature when editing WindowsCE source code. Hard-coded to only search within the documentation for "Windows CE 6.0". **Note:** This script requires Python's win32com module, which is part of [[http://sourceforge.net/projects/pywin32/|Python for Windows extensions]]. **Note:** ''dexplore.exe'' must already be running for this script to work. Code to start ''dexplore.exe'' if needed may be added later. **Note:** This uses the python-win script (above) as the interpreter to ensure it is run using the Win32 installation of Python #!/home/robmee01/usr/bin/python-win # Jump to keyword in DExplore # Huge thanks to Rob Chandler and his page http://www.helpware.net/mshelp2/dexplore/dexplorer.htm import win32com.client, sys h = win32com.client.Dispatch("DExplore.AppObj") h = h.Help # Probably not necessary h.SetCollection("ms-help://MS.VSCC.v80/MS.VSIPCC.v80/MS.WindowsCE.v60.en", "Windows Embedded CE 6.0") if sys.argv[1][0:10] == "ms-help://": h.DisplayTopicFromURL(sys.argv[1]) else: h.DisplayTopicFromKeyword(sys.argv[1]) Example: # Jump to the topic "GetModuleFileName" in an existing instance of dexplore.exe $ dexplore-jump.py GetModuleFileName