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Showing posts with label linux. Show all posts
Showing posts with label linux. Show all posts
Thursday, May 25, 2017

PHP Script - detect whether running under Linux or Windows?

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PHP script - detect whether running under Linux or Windows or other Operating System? I don't have so much knowledge but can overcome w...
Sunday, August 25, 2013

HowTo Format Date For Display or Use In a Shell Script

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H ow do I format date to display on screen on for my shell scripts as per my requirements on Linux or Unix like operating systems You need ...
Thursday, August 22, 2013

Using php execute command/run another php file wihtout waiting for result

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<?php session_start(); $_SESSION["student_name"] = "Pritom Kumar Mondal"; $_SESSION["roll"] = "Col...
Wednesday, June 19, 2013

bash split string into array

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IFS = ', ' read - a array <<< "$string" /* array is the variable name */ To access an individual element: ...

How to set a BASH variable equal to the output from a command?

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In addition to the backticks, you can use $() , which I find easier to read, and allows for nesting. OUTPUT = $ ( ls - 1 ) echo $OUTPU...
Sunday, February 24, 2013

shell script echo new line to file

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var1="Hello" var2="World!" logwrite="$var1\n$var2" echo -e "$logwrite" >> /Users/username/...

How to tell if a string is not defined in a bash shell script

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#!/bin/bash if [ -z $1 ]; then         echo 'Enter something please.';         exit 1; fi;

How To Manually Create Zone Files For Domain Names In Linux Server

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http://www.wallpaperama.com/forums/how-to-manually-create-zone-files-for-domain-names-in-linux-server-t1698.html How To Manually Create ...
Thursday, December 13, 2012

Run Bash Script Using Java And Get Debug And Error Output

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String command = "sudo /usr/bin/some_name.sh"; System.out.println("runBashScriptCommand: " + command); try {     Runtim...
Tuesday, December 11, 2012

Move all files except one

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File Structure: /root/tmp/test [root@dswing test]# ll total 12 -rw-r--r-- 1 root root    2 Dec 12 13:41 a.txt -rw-r--r-- 1 root root    4...

Put a.txt -file to the end of b.txt -file

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In a bash script such append.sh file, write the following code: #!/bin/bash A=/root/tmp/test/a.txt B=/root/tmp/test/b.txt cat $A >> ...

Check if a program exists from a bash script

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$ command - v foo > /dev/ null 2 >& 1 || {   echo >& 2 "I require foo but it's not installed. Aborting....

Resize a list of images in line command

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for file in *. jpg ; do   convert - resize 800x600 -- "$file" "${file%%.jpg}-resized.jpg" ;   done   OR   ...

How to output MySQL query results in csv format

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SELECT 'Order Id', 'Product Name', 'Quantity' UNION ( SELECT order_id , product_name , qty FROM orders INTO OUTF...

How to do something with bash when a text line appear to a file

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Use command tail - f file . log | grep -- line - buffered "my pattern" | while read line do echo $line done The --line-...

Delete all but the 4 newest directories

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ls - atrd */ | head -- lines =- 4 | xargs rm - rf

Bash One Liner: copy template_*.txt to foo_*.txt

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Say I have three files (template_*.txt): template_x.txt template_y.txt template_z.txt I want to copy them to three new files (foo_*.t...