$$# is evaluating to 1 when no value Post: 302300180

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Top Forums Shell Programming and Scripting $$# is evaluating to 1 when no value Post 302300180 by jake_ryan on Monday 23rd of March 2009 12:09:58 PM

03-23-2009

Registered User

$$# is evaluating to 1 when no value

I have the following in my makefile:

Code:

    RESULT=`../${TOOLS_ROOT_PATH}/ext_tools.sh 11`; \
    set $$RESULT > tMp; \
    rm tMp; \
    if [ $$# -ne 0 ]; then \
        echo copying external-local tool: $< \($$*\); \
        mkdir -p ${EXTERNAL_LOCAL_BIN_DIR}/$<; \
        cp -f `../${TOOLS_ROOT_PATH}/ext_tools.sh 11` ${EXTERNAL_LOCAL_BIN_DIR}/$< || exit $$?;\
        if [ -f $<"-install-script" ]; then \
            echo copying $<"-install-script"; \
            mkdir -p ${EXTERNAL_LOCAL_BIN_DIR}/install-scripts; \
            cp -f $<"-install-script" ${EXTERNAL_LOCAL_BIN_DIR}/install-scripts; \
            chmod +x ${EXTERNAL_LOCAL_BIN_DIR}/install-scripts/$<"-install-script"; \
        fi; \
    fi; \
    set `../${TOOLS_ROOT_PATH}/ext_tools.sh 12` > tMp; \
    if [ $$# -ne 0 ]; then \
        echo copying external-remote tool: $< \($$*\); \
        mkdir -p ${EXTERNAL_REMOTE_BIN_DIR}/$<; \
        cp -f `../${TOOLS_ROOT_PATH}/ext_tools.sh 11` ${EXTERNAL_REMOTE_BIN_DIR}/$< || exit $$?;\
        if [ -f $<"-install-script" ]; then \
            echo copying $<"-install-script"; \
            mkdir -p ${EXTERNAL_REMOTE_BIN_DIR}/install-scripts; \
            cp -f $<"-install-script" ${EXTERNAL_REMOTE_BIN_DIR}/install-scripts; \
            chmod +x ${EXTERNAL_REMOTE_BIN_DIR}/install-scripts/$<"-install-script"; \
        fi; \
    fi; \
    rm tMp; \

When ext_tools.sh returned nothing, the $$# in the second if-condition is evaluating to 1. Any idea why it is happening is much appreciated.

Code:

+ .././makefiles/tools/ext_tools.sh 11
RESULT=test_tool1
+ set test_tool1
+ rm tMp
+ [ 1 -ne 0 ]
+ echo copying external-local tool: test_tool1 (test_tool1)
copying external-local tool: test_tool1 (test_tool1)
+ mkdir -p /tmp/lmcsrpe/ggsn_ttx/external/local/bin/ttx/external/test_tool1
+ .././makefiles/tools/ext_tools.sh 11
+ cp -f test_tool1 /tmp/lmcsrpe/ggsn_ttx/external/local/bin/ttx/external/test_tool1
+ [ -f test_tool1-install-script ]
+ .././makefiles/tools/ext_tools.sh 12
+ set
+ [ 1 -ne 0 ]
+ echo copying external-remote tool: test_tool1 (test_tool1)
copying external-remote tool: test_tool1 (test_tool1)
+ mkdir -p /tmp/lmcsrpe/ggsn_ttx/external/remote/bin/ttx/external/test_tool1
+ .././makefiles/tools/ext_tools.sh 11
+ cp -f test_tool1 /tmp/lmcsrpe/ggsn_ttx/external/remote/bin/ttx/external/test_tool1
+ [ -f test_tool1-install-script ]
+ rm tMp

Thanks

Last edited by Franklin52; 03-23-2009 at 03:03 PM.. Reason: adding code tags

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set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)