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1
vote
1answer
191 views

find and exec: why does this command not work?

I don't get why echo prints empty line (latest cygwin version): ~/tmp >find mydor/ -name "*php" mydor/es/c/packags.php mydor/etns/inx.php mydor/pacepors.php mydor/XAE.php ~/tmp >find mydor/ ...
4
votes
2answers
48 views

What's the recommended way to run a service as a non-root user?

I have a simple init.d script which starts and stops a process. I call the init.d as root, but I'd like the process it controls to run as a specific user. The most common suggestion online seems to ...
3
votes
1answer
86 views

What does exec 3<&1 do?

I understand exec can do I/O Redirection on current shell level. but I only sees usage like exec 6<&0 # Link file descriptor #6 with stdin. # Saves stdin. exec 6>&1 # ...
3
votes
4answers
186 views

find -exec exit 1 \; Doesn't work neither does find -exec sh -c exit 1 \;

Using Enterprise Linux 5/6, Bash 4.x I want this type of logic: # IF temp file exists, exit because we are restarting already find /tmp/restarting_server -mmin -10 -exec exit 1 lsof -i TCP:1234 ...
1
vote
2answers
645 views

PHP exec command has the result 0 even if an error occurs

I have this PHP code: $execout=exec('ssh root@xxx.xxx.xxx.xx "sudo /etc/init.d/smokeping reload"',$output1,$result); if($result !=0){ echo"that can't reload"; } else{ echo "successfully ...
0
votes
3answers
42 views

Bash in php exec in webpage don't colors for png and mp3 files on Linux

I have code like this in php: header("Content-Type: text/plain"); exec("/bin/bash -c 'ls --color=always'", $result); echo implode("\n", $result); and I've got result (escape is not visible) ...
0
votes
0answers
49 views

Gnuplot and process-substitution

I have a log file where I need to cut out two values at different positions. these are: time and dQ in my file. The main problem is the paste I think. cause the other utilities work pretty well on ...
1
vote
3answers
293 views

php shell_exec() permission on Linux Ubuntu

I'm developing a php application using Linux server. My problem is executing shell_exec() to call some exe file is not work(actually not exe, it's kind of linux executable file) echo ...
0
votes
1answer
42 views

Order a list of files, by date modified, then unzip them in that order

I have a list of zip files, that must be extracted by date modified, they contain updated images and the strange way the local mls provides them means that newer zip files container newer versions of ...
1
vote
4answers
125 views

All subprocesses are Bash (!),

I was trying to use GDB, and found that whenever it attempted to spawn the program I was debugging, Bash was spawned instead (GDB would say starting myProg..., and then Bash would appear. When I ...
7
votes
4answers
606 views

redirect and log script output

I am trying to tidy up the following snippets, design goals are to log all output from a script, and should not be a wrapper. Less lines are better. I don't care about user inputs (at this stage), ...
0
votes
1answer
302 views

How does -exec actually work

I am confused on the -exec command. E.g. in this case: find . -type f -name "*.c" -exec cat {} \;>all_c_files.txt It seems that I get cat file1 file2 file3 ... fileN While in this case: ...
0
votes
1answer
65 views

How to prevent find -execdir from following symlinks?

Say I have a symlink: linktob -> b If I run something like find . -type l -execdir chmod 777 {} \;, the chmod command affects the file the symlink is pointing to, i.e. ‘b’. The man page suggests ...
2
votes
1answer
83 views

exec cp failes from script, yet works when issued directly

I have a script that copies SQL backups to a windows server. Here's the line from /etc/fstab: //my.win.box/share$ /winshare cifs ...
2
votes
3answers
814 views

`solaris + xargs command for solaris

the command find /tmp -name 'core*' -type f -print0 | xargs -0 works fine on Linux, but xargs -0 option is not legal on Solaris what is the equivalent option ( xargs? ) for Solaris 10 second ...
3
votes
3answers
714 views

What after exec() in ls command. Is the parent process printing the output to the console or the child?

I have a simple doubt on execution of the command ls. As per my understanding from the research I have done on the internet, I understood the below points. When we type ls command shell interprets ...
4
votes
2answers
1k views

Copy stdout and stderr to a log file and leave them on the console within the script itself

Using bash, how do I copy stderr and stdout to a log file and also leave them displayed on the console? I would like to do this within the script itself using an exec. I tried with exec ...
0
votes
1answer
197 views

Switching to another shell without copying environment variables

From tcsh, if I try: exec /home/path/to/my/zsh it works (I enter a Zsh shell) but if I try exec -c /home/path/to/my/zsh I get: -c Command not found How do I switch to my Zsh shell and start ...
0
votes
1answer
525 views

Rename files and directories with a special characters on solaris machines

The target of the following code ( commands ) is to rename files/directories and also support files/directories with a special characters as "@" or "." etc those commands are run fine on Linux ...
3
votes
3answers
461 views

Find functions, commands, and builtins [duplicate]

Possible Duplicate: Executing user defined function in a find -exec call Suppose I have the following bash code: !#/bin/bash function print_echo (){ echo "This is print_echo Function" ...
0
votes
2answers
804 views

variables in find command and more shell problem [duplicate]

Possible Duplicate: Recursive rename files and directories I wrote the following script: #!/bin/bash SAVEIFS=$IFS alias export='export' IFS=$(echo -en "\n\b") find $1 -name "*" ...