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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Kumar<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>A backquote in a shell (K-shell) script tells the shell to execute the exclosed characters as a command.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>In your example the shell script will try to execute a command bRef2 and a command bRBS2.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>In the shell script, you can ‘escape’ the functionality of the backquote using the backslash character.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>echo “draw title Precip diff \(mm/d\), Model\`bRef2\`n – Model\`bRBS2\`n” <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Note the escape for the parenthesis since that is also a special character.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Similarly, you can use the single quote to encase your original expression without using backquotes;<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>however, script variables ${var} are not interpreted in single quotes. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>See <a href="http://linuxreviews.org/beginner/Bash-Scripting-Introduction-HOWTO/en/x303.html">http://linuxreviews.org/beginner/Bash-Scripting-Introduction-HOWTO/en/x303.html</a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>John<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> gradsusr-bounces@gradsusr.org [mailto:gradsusr-bounces@gradsusr.org] <b>On Behalf Of </b>Pankaj Kumar<br><b>Sent:</b> Wednesday, March 30, 2011 8:01 AM<br><b>To:</b> GrADS Users Forum<br><b>Subject:</b> [gradsusr] How to use superscript & subscript in a shell script<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Dear All,<br>I want to use superscript & subscript in my shell script. I am trying this<br><br>draw title Precip diff (mm/d), Model`bRef2`n - Model`bRBS2`n<br><br>it is should write as below<o:p></o:p></p><p style='margin-bottom:0in;margin-bottom:.0001pt'>Precip diff (mm/d), Model<sub>Ref2</sub> - Model<sub>RBS2</sub><o:p></o:p></p><p style='margin-bottom:12.0pt'>But this is not working in my shell script (K-Shell) whereas when I am trying the same in a gs file it is working perfectly....<br>Can any one suggest me how to use supper and sub script commands in shell scripts!!!<br><br>With thanks and regards,<br>Pankaj Kumar<o:p></o:p></p><pre>-- <o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Dr. Pankaj Kumar<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Max Planck Institute for Meteorology &<o:p></o:p></pre><pre>Climate Service Center (CSC)<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Bundesstrasse 53<o:p></o:p></pre><pre>20146 Hamburg, Germany <o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Tel. : +49 40 41173411 <o:p></o:p></pre><pre>Fax. : +49 40 41173357<o:p></o:p></pre><pre><o:p> </o:p></pre></div></body></html>