Here's a very simple, probably duplicate (sorry - I have tried searching) shell scripting question. What's the correct syntax to set DATA_DIR as a subdirectory of WDM_DIR, in the script below? (Line 2.) WDM_DIR='/Users/ap257/wdm/wdm' DATA_DIR=$WDM_DIR+/wdm/pylons_data/getdata/ cd $DATA_DIR The point is that people can change WDM_DIR ...
Hello! I want to write a shell script to get an image from an rss feed. Right now I have: curl http://foo.com/rss.xml | grep -E '<img src="http://www.foo.com/full/' | head -1 | sed -e 's/<img src="//' -e 's/" alt=""//' -e 's/width="400"//' -e 's/ height="400" \/>//' | sed 's/ //g' This I use to grab the first occurence of an image UR...
I'm trying pipe the output of an awk command through more than one command at once in a Bash shell, following my knowledge I'm coming up with this: awk '$13 ~ /type/ {print $15}' filename.txt | (wc -l || sort -u) I want the result of the awk command to be both counted AND sorted, how can I accomplish that? Even with && command it does...
I have a command which when executed gives following outputs $ cleartool pwv Working directory view: abhijeet_trialProj_r2.4-phase1_ba_abhijeet_branch Set view: abhijeet_trialProj_r2.4-phase1_ba_abhijeet_branch $ cleartool pwv Working directory view: ** NONE ** Set view: abhijeet_trialProj_r2.4-phase1_ba_abhijeet_branch $ ct pwv Wor...
Hello, I'm totally new to scripting but I got sick and tired of compiling my native code for Android manually so I wrote a little .sh script and a .bat file to run this script in cygwin. Both files are placed in the root of a project, in the .sh file the NDK directory is set and then by running the .bat file I compile my native code. T...
How can I send some specific number of, say 1000, messages (echo) per second to a file by a shell script? i.e. I want to echo 1000 such messages ("hi") per sec to a (tmp) file. echo "hi" >> tmp ...
I have a Perl script which downloads a large number of files from a remote server. I'd like to avoid hammering the server, so I'd like to avoid downloading a file if it hasn't been modified since my last check. Is there a good way to do this, either in Perl or with a shell script? Can I get the server to send HTTP 304 rather than HTTP ...
I have a directory with multiple files in the form of: file001_a file002_a file002_b file003_a Using a shell script, I was wondering what the easiest way would be to list all files within this directory that have duplicates in the first 7 letters; ie the output above would be: file002_a file002_b any help would be much appreciated!...
The Unix cut command takes a list of fields, but not the order that I need it in. $ echo 1,2,3,4,5,6 | cut -d, -f 1,2,3,5 1,2,3,5 $ echo 1,2,3,4,5,6 | cut -d, -f 1,3,2,5 1,2,3,5 However, I would like a Unix shell command that will give me the fields in the order that I specify. ...
Here is a sample string . I would like to get the output from this in the specified format. String: /vob/TEST/.@@/main/ch_vobsweb/1/VOBSWeb/main/ch_vobsweb/4/VobsWebUI/main/ch_vobsweb/2/VaultWeb/main/ch_vobsweb/2/func.js filename;path to file func.js;VOBSWeb/VosWebUI/VaultWeb/func.js The filename is listed at the end of the whole st...
Hello Gurus I've been trying to let a php file call a shell script to run a jar file on Ubuntu and put an output on the screen or at least on a file but it doesn't seem to work at. The script itself run from terminal does the work but not the php file. here is the php file $output=shell_exec('callablescript --import b57b06bb-36d8-de6c...
I am writing a short shell script which calls 'make all'. It's not critical, but is there a way I can suppress the message saying 'nothing to be done for all' if that is the case? I am hoping to find a flag for make which suppresses this (not sure there is one), but an additional line or 2 of code would work too. FYI I'm using bash. Ed...
can I change/su user in the middle of a script? if [ "$user" == "" ]; then echo "Enter the table name"; read user fi gunzip * chown postgres * su postgres dropdb $user psql -c "create database $user with encoding 'unicode';" -U dbname template1 psql -d $user -f *.sql ...
I need to run this command psql -c "create database $var with encoding 'unicode';" -U edumate template1 from the script under different user. The su syntax is su postre -c 'some command' so there are another quotes required. Also please note that the psql command has $var variable inside. so 'some command' = psql -c "create database ...
hii, i want to edit she bang line #!/bin/bash line on the top of files in all the files with .sh extension how it done bye scripting . thanks ...
Hello, I want to add a line in the crontab (on my local machine) which will run every five minutes. My problem is the command I am going to use requires sudo : sudo indexer --config /usr/local/etc/sphinx.conf --all --rotate Is there a way I can run the command without using sudo and without prompting for password ? Thanks! ...
I've never done shell script before and now I'm running into a simple problem... I have a for loop which executes every time the run.sh script. To see how far the script has already run I want to print e.g. every 5000 the actual index. $counter = 0 for (( i = 0 ; i <= 5000; i++ ))do if ($i = $counter); then echo "$c...
For Ex : echo "adsa " >> a.txt echo "asdad " >> a.txt in my file adsa asdad But i am looking for adsa asdad ...
So I'm trying to execute a shell script which produces a lot of output(in 100s of MBs) from a Java file. This hangs the process and never completes. However, within the shell script, if I redirect the output of the script to some log file or /dev/null Java file executes and completes in a jiffy. Is it because of amount of data that the...
Example: I have a file: FILENAME.EXT and would like to extract FILENAME without the .EXT I want to be able to use the extensionless filename for a command which only accepts filenames without its extensions. I have a utility called BCHECK which accepts as its argument a filename with no extensions. Using BCHECK *. does not work because a...