Commands using ldd sorted by votes

Commands using ldd (7)

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Copy all shared libraries for a binary to directory

When working with jailed environments you need to copy all the shared libraries to your jail environment. This is done by running ldd on a binary which needs to run inside the jail. This command will use the output from ldd to automatically copy the shared libraries to a folder of your choice. Show Sample Output
This is sample output - yours may be different.
```
# ldd /bin/bash | grep "=> /" | awk '{print $3}' | xargs -I '{}' cp -v '{}' test/
`/lib/libncurses.so.5' -> `test/libncurses.so.5'
`/lib/i686/cmov/libdl.so.2' -> `test/libdl.so.2'
`/lib/i686/cmov/libc.so.6' -> `test/libc.so.6'
```
4

ldd file | grep "=> /" | awk '{print $3}' | xargs -I '{}' cp -v '{}' /destination

rickard2 · 2012-02-11 17:50:10 12
List the libraries used by an application

For example, you need to make a copy of all the libraries that a certain application uses, with this command you can list and copy them. Show Sample Output
This is sample output - yours may be different.
```
/lib/libncurses.so.5,/lib/tls/i686/cmov/libdl.so.2,/lib/tls/i686/cmov/libc.so.6,/lib/ld-linux.so.2
```
3

ldd /bin/bash | awk 'BEGIN{ORS=","}$1~/^\//{print $1}$3~/^\//{print $3}' | sed 's/,$/\n/'

cicatriz · 2010-08-06 12:18:56 6
Check executable shared library usage

provides list of shared libraries required by executable Show Sample Output
This is sample output - yours may be different.
```
# ldd /bin/bash
        linux-gate.so.1 =>  (0x00ba2000)
        libtermcap.so.2 => /lib/libtermcap.so.2 (0x00484000)
        libdl.so.2 => /lib/libdl.so.2 (0x003c5000)
        libc.so.6 => /lib/libc.so.6 (0x00280000)
        /lib/ld-linux.so.2 (0x0025d000)
```
2

ldd <executable binary>

al3x · 2009-02-07 23:13:40 10
Check tcp-wrapping support

This function returns TRUE if the application supports tcp-wrapping or FALSE if not by reading the shared libraries used by this application. Show Sample Output
This is sample output - yours may be different.
```
if supportsWrap sshd ;then  vim + -o /etc/hosts.allow /etc/hosts.deny; fi
```
1

supportsWrap(){ ldd `which ${1}` | grep "libwrap" &>/dev/null && return 0 || return 1; }

cicatriz · 2010-12-01 15:22:29 16
Resolve *.so dependencies in current directory and copy to /tmp/build directory

I used this to resolve runtime dependencies of an application to create self-contained tar-balls (e.g. PHP for Docker or Rkt) Requirements: - realpath - ldd - find - grep - sort - uniq - xargs
This is sample output - yours may be different.
0

for f in $(find . -name "*.so"); do ldd -v $(realpath $f) | grep -Eo "(/[a-z0-9\_.+-]+)*" | uniq | xargs -I % cp --parents % /tmp/build; done

mozzymoz · 2016-03-21 17:47:43 14
Check executable shared library usage
This is sample output - yours may be different.
0

ldd `which executable_program`

z3l3man_zn · 2016-08-17 03:49:16 14
print shared library dependencies
This is sample output - yours may be different.
-1

ldd path_to_executable

yababay · 2010-09-06 17:07:39 4

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Find the 10 users that take up the most disk space

In OSX you would have to make sure that you "sudo -s" your way to happiness since it will give a few "Permission denied" errors before finally spitting out the results. In OSX the directory structure has to start with the "Users" Directory then it will recursively perform the operation. Your Lord and master, Mematron

Convert a bunch of HTML files from ISO-8859-1 to UTF-8 file encoding in a folder and all sub-folders

This is my first attempt at converting all HTML files to UTF-8 file encoding, including all subfolders. Theres probably a much more compact way to do it, but I'm quite proud of it with my windows background ;)

Uptime in minute

Want to run scripts/programs in the system after starting X minute [ For letting the system to free ]? This will give uptime in minute.

list files recursively by size

Find the most recent snapshot for an AWS EBS volume

Uses the python-based AWS CLI (https://aws.amazon.com/cli/) and the JSON query tool, JQ (https://stedolan.github.io/jq/)

Adding Prefix to File name

Good old bracket expansion :-) For large numbers of files, "rename" will spare you the for-loop, or the find/exec...

Display last exit status of a command

The variable ? contain the last exit status of a command, it can be printed for troubleshooting purpose.

grep certain file types recursively

doesn't do case-insensitive filenames like iname but otherwise likely to be faster

List only executables installed by a debian package

Maybe not clean with big package and too long argument. But return every file who can be executed.

Copy your ssh public key to a server from a machine that doesn't have ssh-copy-id

This one is a bit more robust -- the remote machine may not have an .ssh directory, and it may not have an authorized_keys file, but if it does already, and you want to replace your ssh public key for some reason, this will work in that case as well, without duplicating the entry.

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Commands using ldd (7)

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