... To prevent the shell from expanding an argument containing several special characters: $ sed -e 1,$s/V[0-9].*: //p /etc/motd sed: command garbled: 1,/V[0-9].*: $ sed -e '1,$s/V[0-9].*: //p' /etc/motd DYNIX/ptx(R) Tue Feb 25 12:04:15 GMT 1993 . ... To prevent the shell from expanding special characters but allow command substitution: echo 'My working directory is `pwd`' My working directory is`pwd` echo "My working directory is `pwd`" My working directory is /home/jane/docs . ...

The File System . ... Files are identified to the system using a unique identifier called the file specification , which can include disk and directory names as well as node names for accessing files across the network. On VMS systems, file names are usually thought of as having three parts *1 : the filename , the file type , and the version number . ... The full file specification, with node name, device, directory, file name, file type, and version being specified is shown in Figure 3.1 . ...

OptInt PmWiki . ... Edit Page | ... MROI Delay Line Design Contract . ... Access Keys . ... Note that this AKey+x access key only works this way on this page, because it is simply a shortcut for accessing the link that exists only on this page. The list of access key assignments in default PmWiki installations generally work throughout a site because links have been created in PmWiki skins and editing screens that incorporate access key parameters using the access key translation phrases. ...

... A plot macro is a set of commands that you can execute together by invoking the name of the macro; in effect, it is a plot subroutine. ... You can make a macro in 4 ways: . ... The rule to remember if you do this is that the name of the macro must be the first thing on a line of the file, and should be followed by SM commands. ... Similarly, the right and left arrows advance the cursor one character right and left, respectively. within a line, keys will work just like the history editor . ...

... int kill(int pid, int signal) - a system call that send a signal to a process, pid . ... sig_talk.c --- Example of how 2 processes can talk */ /* to each other using kill () and signal () */ /* We will fork() 2 process and let the parent send a few */ /* signals to it`s child */ /* cc sig_talk.c -o sig_talk */ #include stdio.h #include signal.h void sighup(); /* routines child will call upon sigtrap */ void sigint (); void sigquit(); main() { int pid ; /* get child process */ if ((...

... user-defined data file formats . ... better integration with a user's analysis routines To add such functionality to SAOimage, we developed the XPA Messaging System that allows X programs to define points of public access through which data and commands can be exchanged with external programs. ... We have utilized XPA to develop "SAOimage: The Next Generation" (SAOtng), an extensible image display service that can cooperate with other processes and programs. ... SAOtng help pages . ...

... Feger T. How to connect up to 16 GLD 20-24 Mini motor control stages to a PC by using a Ethernet Terminal Server (LANtronix) 1. ... To use this software in combination with the terminal server, a virtual COM port must be created. ... Control a stepper motor: To control an stepper motor, set the generated virtual COM port on "Port" and select the corresponding axis on "Axes" in the IPCOMM software. ... Select the first generated COM port and the corresponding axis ID, then start the control panel. ...

... sfit . ... commands . scl . ... Define parameters for controlling performance of genetic algorithm . ... generations . The maximum number of generations the program will go through, before stopping, if the solution is not within the given tolerance. 10 . ... The number of parents randomly generated in the first generation, and in each subsequent generation. 50 . ... This is multiplied by the number of parameters being varied to give the total string length for each parent. 16 . ... elitism . ...

... Directives | ... Apache HTTP Server Version 2.2 . ... This module controls the setting of the Expires HTTP header and the max-age directive of the Cache-Control HTTP header in server responses. The expiration date can set to be relative to either the time the source file was last modified, or to the time of the client access. ... access . ... If set to On , the headers will be added to served documents according to the criteria defined by the ExpiresByType and ExpiresDefault directives ( q.v. ). ...

Next: HST Paper Products: A New Way to Look at HST Data . ... After providing on-the-fly re-calibration of HST data to archive users, ST-ECF has embarked on a new project aiming at grouping, cosmic ray cleaning and drizzling images taken by most HST instruments. ... The production of the missing jitter files combined with the extraction of additional engineering parameters will greatly enhance the homogeneity and the scientific value of the entire archive. ... 1995, HST Data Handbook, STScI, 107 . ...