Sponsored Content
Top Forums Shell Programming and Scripting How to avoid the "temp files" in my script? Post 302988580 by Arnaudh78 on Wednesday 28th of December 2016 06:54:00 PM
Old 12-28-2016
How to avoid the "temp files" in my script?

Hi ! Smilie

I noticed that I create often of temporary files to keep character strings or other and I wish to avoid that if possible ? e.g :
Code:
#!/bin/bash
CONFIG_FILE="conf.cfg"
TEMP_HOSTNAME="temp_file1.txt"

for IP in `egrep -o '([0-9]{1,3}\.){3}[0-9]{1,3}' $CONFIG_FILE`
do
        ssh "$IP" 'hostname' > $TEMP_HOSTNAME
        REMOTE_HOSTNAME=$(cat "$TEMP_HOSTNAME")
        echo ""$IP" "$REMOTE_HOSTNAME"" >> temp_file2.txt
done

If you have any suggestions ? Smilie
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Avoid "++ requires lvalue" Error in Loop Calculation

Hi All, Please help me to perform sum of values in a loop, I am getting following error: "total=0++432907765772: ++ requires lvalue" where actual statement is as : total=$total+$amt where amt can have +ve or -ve values Thanks Sandeepb (3 Replies)
Discussion started by: sandeepb
3 Replies

2. Shell Programming and Scripting

split the string "Setview: arv-temp-view"

Hi experts, I would like to split the value of v and assign "arv-temp-view" to another variable d. I want to do it within shell script. My shell is "tcsh" v="Setview: arv-temp-view" split v and store d=arv-temp-view Please help Thanks Amit (2 Replies)
Discussion started by: amitrajvarma
2 Replies

3. AIX

Probably an easy SMIT question- "Unable to open temp file"

Hi All, Can't find any documentation on the web for this anywhere, except about three web pages that are in Chinese. When I enter SMIT on this box, I get ERROR MESSAGE: Unable to open temp file I suspected smit.log, but it is universal readable, writeable by root, and I am root.... (6 Replies)
Discussion started by: jeffpas
6 Replies

4. Shell Programming and Scripting

Joining 3 AWK scripts to avoid use "temp" files

Hi everyone, Looking for a suggestion to improve the below script in which I´ve been working. The thing is I have 3 separated AWK scripts that I need to apply over the inputfile, and for scripts (2) and (3) I have to use a "temp" file as their inputfile (inputfile_temp and inputfile_temp1... (2 Replies)
Discussion started by: cgkmal
2 Replies

5. Shell Programming and Scripting

"Join" or "Merge" more than 2 files into single output based on common key (column)

Hi All, I have working (Perl) code to combine 2 input files into a single output file using the join function that works to a point, but has the following limitations: 1. I am restrained to 2 input files only. 2. Only the "matched" fields are written out to the "matched" output file and... (1 Reply)
Discussion started by: Katabatic
1 Replies

6. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone... (7 Replies)
Discussion started by: shis100
7 Replies

7. Solaris

How to avoid "cannot execute" issue with a runnable jar file?

I am trying to understand why the runnable jar file runs on one Unix server, but not the other with same environment settings. I copied exact same test jar from here --> http://www.javaworld.com/javaworld/javatips/javatip127/MakeJarRunnable.zip on to both Unix servers. Then changed... (5 Replies)
Discussion started by: kchinnam
5 Replies

8. Red Hat

files having Script which works behind "who" & "w" commands

Dear All, plz print the path of files which have the script of "who" & "w" commands. thnx in advance. (6 Replies)
Discussion started by: saqlain.bashir
6 Replies

9. Shell Programming and Scripting

Delete all log files older than 10 day and whose first string of the first line is "MSH" or "<?xml"

Dear Ladies & Gents, I have a requirement to delete all the log files in /var/log/test directory that are older than 10 days and their first line begin with "MSH" or "<?xml" or "FHS". I've put together the following BASH script, but it's erroring out: for filename in $(find /var/log/test... (2 Replies)
Discussion started by: Hiroshi
2 Replies

10. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
XTERMCONTROL(1) 						   User Commands						   XTERMCONTROL(1)

NAME
xtermcontrol - dynamic control of XFree86 xterm properties. SYNOPSIS
xtermcontrol [OPTIONS]... DESCRIPTION
xtermcontrol makes it easy to change colors, title, font and geometry of a running XFree86 xterm(1), as well as to report the current set- tings of the aforementioned properties. Window manipulations de-/iconify, raise/lower, maximize/restore and reset are also supported. To complete the feature set; xtermcontrol lets advanced users issue any xterm control sequence of their choosing. OPTIONS
--fg=COLOR Set foreground color (see also COLOR NAMES). --bg=COLOR Set background color. --colorN=COLOR Set N'th [0-15] color. --highlight=COLOR Set highlight color. --cursor=COLOR Set cursor color. --mouse-fg=COLOR Set mouse pointer foreground color. --mouse-bg=COLOR Set mouse pointer background color. --font=FONT Set font name (see also FONT NAMES). Alternatively it is possible to specify a fontmenu index as '#[0-6]' or navigate the fontmenu by relative sizes as '#+N' or '#-N', where N is an optional integer. --title=STRING Set window title. Note that mechanisms like the bash(1) PROMPT_COMMAND may overwrite the title. --geometry=WIDTHxHEIGHT+XOFF+YOFF Set size and/or position. Through its control sequences the xterm only recognize positive XOFF and YOFF offsets, which are pixels relative to the upper left hand corner of the display. xtermcontrol is therefore unable to handle negative offsets as described in the X(7x) GEOMETRY SPECIFICATIONS and therefore truncates negative values to zero. --get-fg Report foreground color. --get-bg Report background color. --get-colorN Report N'th [0-15] color. --get-highlight Report highlight color. --get-cursor Report cursor color. --get-mouse-fg Report mouse pointer foreground color. --get-mouse-bg Report mouse pointer background color. --get-font Report font. --get-title Report window title. --get-geometry Report size and position. The size of the text area is reported in characters and the position is reported in pixels relative to the upper left hand corner of the display. --maximize Maximize window. --restore Restore maximized window. --iconify Iconify window. --de-iconify De-iconify window. --raise Raise window. --lower Lower window. --reset Full reset. --raw=CTLSEQS Issue raw control sequence (see also XTERM CONTROL SEQUENCES). --file=FILE Force xtermcontrol to read configurations (see also CONFIGURATION) from FILE instead of the standard personal initialization file ~/.xtermcontrol. --force, -f Skip TERM environment variable check. --verbose, -v Print verbose reports. --help, -h Print help message and exit. --version Print the version number and exit. CONFIGURATION
xtermcontrol reads a default, ~/.xtermcontrol, or a user specified configuration file on startup. Each line in the file is either a com- ment or contains an attribute. Attributes consist of a keyword and an associated value: keyword = value # comment The valid keyword/value combinations are: foreground="COLOR" background="COLOR" highlight="COLOR" cursor="COLOR" mouse-foreground="COLOR" mouse-background="COLOR" geometry="WIDTHxHEIGHT+XOFF+YOFF" font="FONT" color0="COLOR" color1="COLOR" color2="COLOR" color3="COLOR" color4="COLOR" color5="COLOR" color6="COLOR" color7="COLOR" color8="COLOR" color9="COLOR" color10="COLOR" color11="COLOR" color12="COLOR" color13="COLOR" color14="COLOR" color15="COLOR" Whitespace is ignored in attributes unless within a quoted value. The character '#' is taken to begin a comment. Each '#' and all remaining characters on that line is ignored. FONT NAMES
xtermcontrol accepts any X(7x) FONT NAMES. Font names like '-adobe-courier-medium-r-normal--10-100-75-75-m-60-iso8859-1' are very cumber- some to write, so it is convenient to make use of aliases, e.g. 'fixed' or '8x13', if present in fonts.alias files of the font directo- ries. COLOR NAMES
xtermcontrol accepts any X(7x) COLOR NAMES. Basically this means that colors are specified by name or rgb value, e.g. 'blue', 'rgb:0000/0000/FFFF' or '#00F'. Colors are typically reported by the xterm in a device-dependent numerical form, e.g. 'rgb:0000/0000/FFFF'. Note that old syntax rgb values should always be quoted to avoid '#' being interpreted as the beginning of a comment by the shell (see also FILES). XTERM CONTROL SEQUENCES
The secret behind xtermcontrol is xterm control sequences. All the possible (there are a plethora of them) control sequences are documented in ctlseqs.txt, found in the xterm(1) distribution (see also FILES). TROUBLESHOOTING
If read/write permissions on the tty's are changed so that special group membership is required to be able to write to the pseudo terminal, the easiest workaround is to install xtermcontrol setuid root. Xterm(1) has three resources, allowWindowOps, allowTitleOps, and allowFontOps, that enables or disables special operations which xtermcon- trol relies on. If any of these resources are set (or defaults) to 'false' xtermcontrol may hang. The resources corresponds to xtermcon- trol options as: allowWindowOps: --raise --lower --restore --maximize --iconify --de-iconify --get-title --geometry --get-geometry allowTitleOps: --title allowFontOps: --font --get-font All three resources can usually be enabled for the current xterm session via a menu; ctrl+rightclick and look for menu item names like 'Allow Window Ops'. To set these resource values persistently you can add the following to either your local ~/.Xdefaults file, or to a system-wide resource file like /etc/X11/app-defaults/XTerm: *VT100.allowWindowOps: true *VT100.allowTitleOps: true *VT100.allowFontOps: true FILES
<XRoot>/X11/rgb.txt Default rgb color name file location. ctlseqs.txt Xterm control sequences documentation. Distributed with xterm from http://dickey.his.com/xterm/ SEE ALSO
xterm(1), X(7x) COPYRIGHT
Copyright (C) 2002-2009 Jess Thrysoee <jess@thrysoee.dk> xtermcontrol 2.10 October 17, 2009 XTERMCONTROL(1)
All times are GMT -4. The time now is 11:16 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy