I need to add something to a file, plzz help Post: 302220296

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Top Forums Shell Programming and Scripting I need to add something to a file, plzz help Post 302220296 by aigles on Thursday 31st of July 2008 10:43:35 AM

07-31-2008

Registered User

Sounds like homework...

A possible solution :

Code:

> cat asirohi.sh
InputFile='asirohi.dat'
JavaOpts='JAVA_OPTS'

if grep -q "^$JavaOpts=" $InputFile
then
   if grep -q "^$JavaOpts=\"-client " $InputFile
   then
      echo "No change neeeded !"
   else
      sed "s/^\($JavaOpts=\"\)/\1-client /" $InputFile > ${InputFile}.tmp && \
      mv ${InputFile}     ${InputFile}.old                                && \
      mv ${InputFile}.tmp ${InputFile}
   fi
else
   echo "File doesn't contain $JavaOpts variable definition !"
fi
> cat asirohi.dat
ROOT=/
JAVA_OPTS="-Dname=$JAVA_NAME -Xmx$JVM_MAX -DAGENT_HOME=$RT_HOME -DINSTALL_DIR=$RT_HOME -Djavax.net.ssl.keyStore=$RT_HOME/conf/client
.keystore -Djavax.net.ssl.keyStoreType=jks -Djavax.net.ssl.keyStorePassword -Dhttps.cipherSuites=SSL_RSA_WITH_RC4_128_SHA $DEBUG_OPT
S -COMM_NOT_DEPLOY=native_lib $AGENT_CONFIG_PROPS"
TMP=/tmp
> asirohi.sh
> cat asirohi.dat
ROOT=/
JAVA_OPTS="-client -Dname=$JAVA_NAME -Xmx$JVM_MAX -DAGENT_HOME=$RT_HOME -DINSTALL_DIR=$RT_HOME -Djavax.net.ssl.keyStore=$RT_HOME/con
f/client.keystore -Djavax.net.ssl.keyStoreType=jks -Djavax.net.ssl.keyStorePassword -Dhttps.cipherSuites=SSL_RSA_WITH_RC4_128_SHA $D
EBUG_OPTS -COMM_NOT_DEPLOY=native_lib $AGENT_CONFIG_PROPS"
TMP=/tmp
> asirohi.sh
No change neeeded !
> cat asirohi.dat
ROOT=/
JAVA_OPTS="-client -Dname=$JAVA_NAME -Xmx$JVM_MAX -DAGENT_HOME=$RT_HOME -DINSTALL_DIR=$RT_HOME -Djavax.net.ssl.keyStore=$RT_HOME/con
f/client.keystore -Djavax.net.ssl.keyStoreType=jks -Djavax.net.ssl.keyStorePassword -Dhttps.cipherSuites=SSL_RSA_WITH_RC4_128_SHA $D
EBUG_OPTS -COMM_NOT_DEPLOY=native_lib $AGENT_CONFIG_PROPS"
TMP=/tmp
~/Forums>

Jean-Pierre.

aigles

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grub-render-label

GRUB-RENDER-LABEL(1)                                               User Commands                                              GRUB-RENDER-LABEL(1)

NAME

       grub-render-label - generate a .disk_label for Apple Macs.

SYNOPSIS

       grub-render-label [OPTION...] [OPTIONS]

DESCRIPTION

       Render Apple .disk_label.

       -b, --bgcolor=COLOR
              use COLOR for background

       -c, --color=COLOR
              use COLOR for text

       -f, --font=FILE
              use FILE as font (PF2).

       -i, --input=FILE
              read text from FILE.

       -o, --output=FILE
              set output filename. Default is STDOUT

       -t, --text=STRING
              set the label to render

       -v, --verbose
              print verbose messages.

       -?, --help
              give this help list

       --usage
              give a short usage message

       -V, --version
              print program version

       Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.

REPORTING BUGS

       Report bugs to <bug-grub@gnu.org>.

SEE ALSO

       The  full  documentation  for grub-render-label is maintained as a Texinfo manual.  If the info and grub-render-label programs are properly
       installed at your site, the command

              info grub-render-label

       should give you access to the complete manual.

grub-render-label (GRUB) 2.02-2ubuntu8.3                             July 2018                                                GRUB-RENDER-LABEL(1)